TQMa28 User's Manual
Contents
1. Gut Delling 82229 Seefeld info tq group com www tq group com Technology in Quality2. TOMa28 UM 104 28 03 2013 User s Manual TOMa28 UM 104 2013 by TO Group Pagei Table of contents 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 3 1 3 1 1 3 1 2 3 1 2 1 3 1 2 2 4 1 4 1 1 4 1 1 1 4 1 1 2 4 2 4 2 1 4 2 1 1 4 2 1 2 4 2 1 3 4 2 1 4 4 2 1 5 4 2 2 4 2 2 1 4 2 2 2 4 2 2 3 4 2 3 4 2 4 4 2 5 4 2 6 4 2 7 ABOUT THIS MAN ss sn cha 1 Copyright and licence expenses unnnesenssensssunssenssenssensssunssenssenssnnnssunssenssennsnunssnnssnnssnnnsnnnne 1 Registered trademarrks cssssssssssssssecssesssecsssssssecseessusscssecssecsucssusecsecsucssusecaecsueesueeeatecsseesseesacenssenss 1 BIET ANNE RERUM 1 DY OK Et a a 1 Symbols and typographic conventions a av4atrstereteoasseastesssasasooasoosssasnsasasoonsoosnsosnsasasooannosnnou 2 Tips on safety 3 Handling and ESD tips 3 Naming of signals numi een 4 Further applicable documents presumed knowledge 4 Acronyms and definitions sese 5 BRIEF DESCRIPTION nee 7 TECHNICAL DATA E nahen 8 System architecture and funCtiONAIILtY u aavereerseeestesasanasaoasoossasnsasasoosssosnsasnsoonssosnnosnsoonnn 8 TOMa28 block diagram sssessssssescsssecssesssssssseesesssecsueecseecsuessucceaecsuessucesaceessecsucesaceessecsecesaeeesseess 8 System functionality een 8 System COMPONENTS e sssssssssssssszasevsssasessssusssa
3. Dimensions W x D 40 x 26 mm Mounting holes None Maximum stack height Max 1 5mm top side typ 3 75 mm bottom side Board to board distance Selectable by different mating plugs standard 5 mm see also 4 1 Component placement Double sided SMD component placement Connection to carrier board SMD connector pitch 0 8 mm see also 4 1 The information in the drawing are values without tolerances Illustration 12 Overall dimensions bottom view side view User s Manual TOMa28 UM 104 O 2013 by TO Group Page 31 Illustration 13 3D image of TOMa28 6 2 Notes of treatment To avoid damages caused by mechanical stress the TOMa28 may only be extracted from the carrier board by using the extraction tool MOZI28 It can also be obtained separately 2 5 mm should be kept free on the carrier board along the longitudinal edges on both sides of the module for the extraction tool MOZI28 Page 32 User s Manual TOMa28 UM 104 O 2013 by TO Group g 6 3 Component placement Pa Egam sa an z BERE lel pH e LEA Q N L c a BBEEBBD Illustration 14 Component placement top Illustration 15 Connector placement bottom User s Manual TOMa28 UM 104 O 2013 by TO Group Page 33 6 4 Requirements for the superior system 6 4 1 Protection against external effects As an embedded module it is not protected against dust external impact and contact IPOO An adequate protection has
4. HY5PS1G1631CFP Temperature range 0 to 95 C 256 MiB Manufacturer s number Remark Micron M47H64M16HR 3IT 40 to 85 C MT47H128M16 XX Not specified Page 18 User s Manual TOMa28 UM 104 2013 by TQ Group 4 2 2 eMMC 3V3 3V3 a E S S SSPO DAT 0 7 4 e DATIO 7 SSPO_CLK SSPO_CMD lt e Illustration 5 Interface to eMMC The TOMa28 is equipped with an eMMC flash It is controlled via the SD card controller SSPO of the i MX28 The processor has an eMMC interface according to specification 4 4 Table 11 Memory models eMMC flash 2 GiB Manufacturer Manufacturer s number MMCA Rev Temperature Toshiba THGBM1G4D1EBAI7DTH 4 41 25 to 85 C Toshiba THGBM3G4D1FBAIG 4 3 25 to 85 C SanDisk SDIN5D1 2G T 4 41 25 to 85 C The temperature range of the eMMC determines the lower temperature limit of the module User s Manual TOMa28 UM 104 2013 by TO Group Page 19 4 2 2 3 EEPROM For permanent storage of e g module characteristics or customers parameters a serial 64 Kibit EEPROM is provided The EEPROM is controlled via I C bus 1 of the processor Detailed information concerning the C address configuration can be found in section 4 2 9 2 The writing protection WP of the EEPROM is not available Table 12 Memory model EEPROM Manufacturer Manufacturer s number ST Micro
5. is available to connect audio components The SAIF enables to connect 3 4 or 5 wire serial interface e g 7S 4 2 15 Reset PSwitch Two sources on the carrier board are possible for a system reset of the CPU HE Power on reset M RESET e g reset push button reset is triggered after a valid low signal gt 100 ms with a following rising edge The JTAG_TRST e g JTAG debugger works as a software reset during development Depending on the applied level PSWITCH has different functions For function description see 1 It is important to note that PSWITCH voltages of 2 45 V to 3 3 V are not critical since a 10 kQ series resistor protects the input If the TOMa28 remains permanently connected to a battery power supply via the battery pin it must be switched on with PSWITCH Similarly the PSWITCH can also be used for shut down If the PSWITCH shut down function is not required high low edge 15 ns it can be blocked with a low pass by hardware The following illustration shows the PSWITCH and RESET wiring 3V3 3V3 L CPU i MX28 PSwitch RESET JTAG TRST Illustration 10 Reset concept block diagram The PSWITCH low pass is not assembled by default Page 28 User s Manual TOMa28 UM 104 O 2013 by TO Group 4 2 16 Power management The TOMa28 works with a single supply of 5 V tha
6. Manual TOMa28 UM 104 O 2013 by TO Group Illustration directory Illustration 1 Illustration 2 Illustration 3 Illustration 4 Illustration 5 Illustration 6 Illustration 7 Illustration 8 Illustration 9 Illustration 10 Illustration 11 Illustration 12 Illustration 13 Illustration 14 Illustration 15 1QMa28 block diagram zes 8 i MX28 block diagram escsesecssesseessssccssecseecssccsssecseecssecsueecatecssecssessstecstecsuessaeeeaterseeessees 12 Example of low impedance overriding the boot source sss 15 Interface to DDR2 SDRAM sssssssescssescssseecsseecsssesssseecsssecesseecsusesesneessusessnseessasesenees 17 Interface to EMMC u 18 Interface tothe B di DN 21 Interface to the Ethernet Phy Interface of the lC buses JTAG interface 26 Reset concept block diagram Internal power supply ofi MX28 block diagram 29 Overall dimensions bottom view side view eene 30 3D image of TOMAa28 nennessenssensssussenssensnunssunssenssnnnssunssenssnnnssnnssnnssnnnssnnnsnnssennsnunnen 31 Component placement top esssssecssecsssecssecseecsseecstecseecsueecssecseecsueeeueecssecsuessaeesseeseees 32 Connector placement bottom eese tenete tenente tnnnnttnnnntnnn 32 User s Manual TOMa28 UM 104 2013 by TO Group Pagev Revision history Rev Date Name Pos Modification 003 18 03 2011 Petz Documen
7. but must be switched on in the boot process The DC DC converter starts automatically in battery mode This means that during the boot process with 5 V only the linear regulators which provide a maximum of 270 mA are available The DC DC converter must be switched on to ensure a reliable supply even in a worst case scenario The TQ U Boot as well as Linux switch on the DC DC converter at 5 V LIN3V3 LIN1V8 LIN1V2 VDDIO VDDA VDDD LIN1V5 VDD1P5 eee VCC1V5 Lithium ion VCC3V3 VCC1V8 Illustration 11 Internal power supply of i MX28 block diagram 4 2 16 3 Power up The module switches itself on if it is powered with 5 V The module does not switch itself on but has to be switched on with a positive edge at the PSWITCH pin if it is supplied via the battery pin 4 3 Lithium ion secondary battery The lithium ion battery is charged if the module is supplied with 5 V Software settings can be done in the registers HW LRADC CONVERSION and HW POWER CHARGE The battery buffers the RTC Details can be taken from the Reference Manual 1 Lithium primary batteries may not be used Page 30 User s Manual TOMa28 UM 104 2013 by TO Group 5 SOFTWARE SPECIFICATION The TOMa28 is supplied with a boot loader and a BSP for the Starterkit STK MBa28 More information can be found in the Support Wiki for the TOMa28 6 MECHANICS SPECIFICATION 6 1 General information
8. com Page2 User s Manual TOMa28 UM 104 2013 by TO Group 1 5 Symbols and typographic conventions Table1 Terms and Conventions Symbol Meaning This symbol represents the handling of electrostatic sensitive modules and or components These components are often damaged destroyed by the transmission of a voltage higher than about 50 V A human body usually only experiences electrostatic discharges above approximately 3 000 V This symbol indicates the possible use of voltages higher than 24 V Please note the relevant statutory regulations in this regard Non compliance with these regulations can lead to serious damage to your health and also cause damage destruction of the component This symbol indicates a possible source of danger Acting against the procedure described can lead to possible damage to your health and or cause damage destruction of the material used This symbol represents important details or aspects for working with TQ products A font with fixed width is used to denote commands file names or menu Command A items User s Manual TOMa28 UM 104 O 2013 by TO Group Page 3 1 6 Tips on safety Improper or incorrect handling of the product can substantially reduce its life span 1 7 Handling and ESD tips General handling of your TQ products The TO product may only be used and serviced by certified personnel who have taken note of the information the
9. devices can be connected Table 14 SD card interface CPU i MX28 Signal name SD card microSD card eMMC8 bit Remark SD SCK CLK CLK SD CMD CMD DATA IN CMD No PU on the TOMa28 SD DETECT4 CARD DETECT No PU on the TOMa28 SD WP WRITE PROTECT No PU on the TQMa28 SD_DO DATAO DATA OUT DATAO No PU on the TQMa28 SD_D1 DATA1 DATA1 No PU on the TQMa28 SD_D2 DATA2 DATA2 No PU on the TQMa28 SD_D3 DATA3 CD DATA3 No PU on the TOMa28 GPIOO 4 DATA4 No PU on the TOMa28 GPIOO 5 DATA5 No PU on the TOMa28 GPIOO 6 DATA6 No PU on the TOMa28 GPIOO 7 DATA7 No PU on the TOMa28 The pull up resistors which are required for the operation of the SD interfaces must be implemented on the carrier board The function is tied to the SD card socket and possibly not always available The function is tied to the SD card socket and not available with microSD cards 4 2 6 User s Manual TOMa28 UM 104 2013 by TO Group Page 21 Graphics interfaces LCD bus Parallel displays with a maximum frame size of up to 800 x 480 pixels can be connected to the TOMa28 The parallel data interface can be up to 24 bits wide The LCD bus is directly routed to the module connector 4 2 7 LCD _D 0 23 LCD RESET LCD ENABLE LCD DOTCLK LCD HSYNC LCD VSYNC LCD WR RWN LCD RD E Illustration 6 Interface to
10. ranges Table 15 PC device configuration Device Address Device Binary Temperature sensor 0x49 1 0 0 1 0 A2 0 A1 1 AO EEPROM 0x50 1 0 1 0 0 A2 0 A1 0 A0 All pull up resistors for the PC buses are already assembled on the module and must therefore not be equipped on the carrier board If more devices are connected the bus load has to be estimated If necessary the overall resistance has to be reduced by additional parallel resistors User s Manual TOMa28 UM 104 2013 by TO Group Page 25 4 2 9 3 CAN Both CPU internal FlexCAN controllers of the i MX28 with data rates up to 1 Mbit s according to CAN 2 0B protocol are used as CAN interfaces The signals are routed to the module connectors The corresponding drivers have to be provided on the carrier board 4 2 9 4 SPI The SPI interface of the i MX28 is named SSP The SSP2 interface signals MOSI MISO SCK and SSO are available at connector X2 In addition to SSP2 SSP3 can be switched alternatively to AUARTA Table 16 Alternative SSP3 AUART4 SSP3 AUART4 SSP3_MOSI AUART4_RX SSP3_MISO AUART4_RTS SSP3_SCK AUART4_TX SSP3 SSO AUART4 CTS 4 2 10 PWM The PWM outputs of the i MX28 are directly available at the module connector pins For use with the STK MBa28 the following alternative signals are supported in the BSP Table 17 PWM signals PWM Usage PWMO
11. safety regulations in this document and all related rules and regulations A general rule is do not touch the TQ product during operation This is especially important when switching on changing jumper settings or connecting other devices without ensuring beforehand that the power supply of the system has been switched off Violation of this guideline may result in damage destruction of the module and be dangerous to your health Improper handling of your TO product would render the guarantee invalid Proper ESD handling The electronic components of your TQ product are sensitive to electrostatic discharge ESD Always wear antistatic clothing use ESD safe tools packing materials etc and operate your TQ product in an ESD safe environment Especially when you switch modules on change jumper settings or connect other devices Page4 User s Manual TOMa28 UM 104 O 2013 by TO Group 1 8 Naming of signals A hash mark at the end of the signal name indicates a low active signal Example RESET If a signal can switch between two functions and if this is noted in the name of the signal the low active function is marked with a hash mark and shown at the end Example C D If a signal has multiple functions the individual functions are separated by slashes when they are important for the wiring The identification of the individual functions follows the above conventions Example WE2 OE 1 9 F
12. the occurring voltages 5 V DC tests with respect to the operational and personal safety haven t been carried out 7 4 Climatic and operational conditions Permitted component temperature 25 C to 85 C Permitted storage temperature 40 C to 125 C Relative air humidity operation storing 10 to 90 not condensing Protection class IPOO Thermal resistance of the module 20 K W User s Manual TOMa28 UM 104 2013 by TO Group Page 35 7 5 Reliability and service life No detailed MTBF calculation has been done for the TQMa28 It was designed to be insensitive to vibration and impact Product life limiting components like electrolyte capacitors were not used Middle grade connectors which guarantee at least 100 mating cycles were used for the module 7 6 Environment protection 7 6 1 RoHS compliance The TQMa28 is manufactured RoHS compliant B6 All used components and assemblies are RoHS compliant HM RoHS compliant soldering processes are used 7 6 2 WEEE regulation The company placing the product on the market is responsible for the observance of the WEEE regulation To be able to reuse the product it is produced in such a way a modular construction that it can be easily repaired and disassembled 7 6 3 Other entries By environmentally friendly processes production equipment and products we contribute to the protection of our environment The energy consumption of this subassembly is minimis
13. to be guaranteed by the surrounding system 6 4 2 Thermal management Up to 2 W worst case have to be dissipated to cool the TOMa28 The power dissipation originates primarily in the processor and in the DDR2 SDRAM The thermal resistance of the module is 20 K W The user is responsible for the removal of this power dissipation in his application In most cases a passive cooling should be sufficient In a warm environment above approx 40 C it can be necessary to install the TOMa28 on end module connectors vertical to enable a flow of air on both sides of the module for passive cooling The CPU belongs to a performance category with which in certain applications cooling can become necessary It is the task of the user to define a heat sink suitable for the specific case of operation e g by clock frequency stack height and airflow 6 4 3 Structural requirements The TOMa28 is held in the module socket by the retention force of the pins a total of 160 For high requirements with respect to vibration and shock firmness an additional plastic module holder has to be provided in the final product to hold the module in its position For this purpose TQ Systems provides a standard solution As no heavy and big components are used no further requirements are given Page 34 User s Manual TOMa28 UM 104 O 2013 by TO Group 7 SAFETY REQUIREMENTS AND PROTECTIVE REGULATIONS 7 1 EMC The module was developed accordin
14. 3v3 SD CARD L9 SD WP 55 56 SD_D1 T8 SD_CARD 3V3 bi out 3V3 SD_CARD P8 SD_SCK 57 58 SD D3 U7 SD CARD 3V3 bi in 3V3 UART1 L4 AUART1_RX 59 Gl SD DETECT N6 SD CARD 3V3 in in 3V3 UART3 M5 AUART3 RX 61 62 AUART1_TX K4 UART1 3V3 out out 3V3 UART3 K6 AUART3 RTS 63 64 AUART3 TX ES UART3 3V3 out in 3V3 CANT M9 CAN1 RX 65 494 AUART3 CTS L6 UART3 3V3 in out 3V3 CANI M7 CAN1 TX 67 68 PWM4 E10 PWM 3V3 out out 3V3 LCD PWM K8 LCD BACKLIGHT PWM lt x 70 PWM3 E9 PWM 3V3 out out 3V3 DUART EA DUART_TX 71 72 DUART RX K7 DUART 3V3 in 10kQT bi 3V3 12C1 H7 12C1_SDA A EZN 12C1_SCL H6 12C1 3V3 bi 10kQT in 3V3 UARTO G5 AUARTO RX 75 76 AUARTO TX H5 UARTO 3V3 out out 3V3 UARTO J7 AUARTO RTS 7 74 5 AUARTO_CTS J6 UARTO 3V3 in ov POWER GND 79 80 GND POWER ov User s Manual TOMa28 UM 104 2013 by TO Group 10 Page 11 4 1 1 2 Module connector X2 Table6 Pin assignment module connector X2 5 8 a l co a E d S 5 d e ov POWER GND GND POWER ov out 3V3 1588 B1 1588 Event2 out 4 1588 Event2 in C1 1588 3V3 in out 3V3 1588 D1 1588 Event3 out 3 1588 Event3 in E1 1588 3V3 in in 3V3 UART C2 AUART4 RX 8 AUART4 TX A2 UART 3V3 out out 3V3 UART B2 AUART4 RTS 0 AUART4 CTS D2 UART 3V3 in out 3V3 SPI A3 SSP2 SCK SSP2 MISO
15. 4 2 16 1 4 2 16 2 4 2 16 3 4 3 6 1 6 2 6 3 6 4 6 4 1 6 4 2 6 4 3 7 1 7 2 73 7 4 7 5 7 6 7 6 1 7 6 2 7 6 3 8 1 Ethernet Ss RR 22 Serallteltacesscomuus IEEE eS 23 Brdqe M 23 Cbus e e em n a nn ee ton e en 24 CAN ka n a a a H HN 25 SPluscecscsssssssscscsssssssscscscsssssssscscscsssssssssssscsssssssssscscssssssssscscsesssesssscscsesesssssscscsesssssssscscsesassssessesesassssesacseess 25 caedes I 27 Meissner mec M 28 Implementation of power LailS sessssecssecsecsssecssecscssstecseecsscssseecseecsuecsuceestecsueesucseatessseeseeesess 28 Internal power supply eese tentent ttnnttnn ttes tte ttt tits ttt t tta tto ttn ttta tto tttosss 29 POWER UD REITER 29 Lithium ion secondary battery esesccsecseecssecsssecssecsecsssecseecsecsseecseecseesseesseecsessaeeeaceeseeeseeesass 29 SOFTWARE SPECIFICATION MECHANICS SPECIFICATION General information s Notes of treatimientiuu eie e HER RR ERE BER RE MPEHRE HER EPEH RE OERFERERRERERPARERRE HERR RER ERE Component placement eese eene ttenn tenente tennnttnnnntetnn tte tttnntttenitttnntnnnnttnnnn Requirements for the superior system avsarestereteseseosssossannsoonssosssasnsasasoosssasnsasasoosnnosnsaoann 33 Protection against external effGCHS rererree
16. 80 User s Manual TOMa28 UM 104 2013 by TO Group Page7 2 BRIEF DESCRIPTION The specification describes the hardware of the TOMa28 and refers to some software settings The specification does not replace the Reference Manual The TOMa28 is a universal Minimodule based on the Freescale ARM CPU MCIMX287CVM4B i MX28 The ARM926EJ S core works with up to 454 MHz The module extends the TOC product range and provides a well balanced ratio between computing performance and graphics power The module provides the following key functions and characteristics Freescale i MX287 ARMO architecture 454 MHz All functional CPU pins are routed to module connectors Up to 32 GiB eMMC flash Up to 256 MiB DDR2 SDRAM 64 Kibit EEPROM 12 bit A D converter PWM Various serial interfaces depending on multiplexing UART SPI lC IS 2x CAN Temperature sensor 2 x USB 2 0 Hi Speed Host interface only with 5 V supply Extended temperature range on request Low power consumption 0 35 to 2 W depending on mode of operation Dimensions 40 x 26 mm Long term available Single power supply 5 V or 3 3 V 3 3 V no USB Power consumption in Standby mode 5V 0 5 W 3 3 V battery powered 0 35 W Since all functional pins of the processor except SDRAM interface are routed to the module connectors there is a wide range of possible applications for the TOMa28 1 All components of the TQMa28 are energized no further activitie
17. B3 SPI 3V3 in out 3V3 SPI C3 SSP2 MOSI j SSP2 SSO C4 SPI 3V3 out out 3V3 ENET F3 ENET FEC RESET B 6 DEBUG B9 CONFIG 3V3 in 10kQT ov POWER GND 8 GND POWER ov out 3V3 ENET G4 ENET MDC 0 ENET CLK E2 ENET 3V3 out bi 3V3 ENET H4 ENET_MDIO ENET_INT E3 ENET 3v3 in in 3V3 ENETO H1 ENETO RXDO 4 ENETO TXDO F1 ENETO 3v3 out in 3V3 ENETO H2 ENETO RXD1 6 ENETO TXD1 F2 ENETO 3v3 out in 3V3 ENETO E4 ENETO RX EN 8 ENETO TX EN F4 ENETO 3V3 out in 3V3 ENET1 J3 ENET1_RX_EN 0 ENET1_TX_EN J4 ENET1 3V3 out in 3V3 ENET1 JI ENET1 RXDO ENET1 TXDO G1 ENET1 3V3 out in 3V3 ENET1 J2 ENET1 RXD1 j ENET1 TXD1 G2 ENET1 3V3 out ov POWER GND 6 GND POWER ov out 3V3 USB1 F6 USB_1_PWR_EN 8 USB_1_DM B8 USB1 5V bi in 3V3 USB1 D3 USB 1 OVERCURRENT 40 USB 1 DP A8 USB1 5V bi out 3V3 USBO F5 USB 0 PWR EN 4 USB 0 DM A10 USBO 5V bi in 3V3 USBO D4 USB 0 OVERCURRENT 44 USB 0 DP B10 USBO 5V bi ov POWER GND 46 GND POWER ov in 3V3 USBO J5 USB 0 ID 48 CANO RX L8 CANO 3V3 in in 3V3 CONFIG A11 PSWITCH 0 CANO TX M8 CANO 3V3 out 10kaT bi 3v3 12C0 C7 12C0_SCL 12C0_SDA D8 12C0 3V3 bi 10kQT out 3V3 SPDIF D7 SPDIF 4 GPIO2_9 D10 GPIO 3V3 bi out 3V3 I2S AUDIO E7 SAIFO SDATAO 9 SAIF1 SDATAO E8 I2S AUDIO 3V3 in bi 3V3 12S AUDIO F7 SAIFO BITCLK 8 SAIFO LRCLK G6 I2S AUDIO 3V3 bi out 3V3 I2S AUDIO G7 SAIFO MCLK 60 RESET A14 CONFIG 3V3 in 10kQT ov POWER GND 6 GND POWER ov in 3V3 Touch ADC C14 LRADC6 64 HSA
18. DCO B14 ADC 3V3 in in 3V3 Touch ADC D13 LRADC4 66 LRADC5 D15 Touch ADC 3V3 in in 3V3 Touch ADC C8 LRADC2 68 LRADC3 D9 Touch ADC 3V3 in in 3V3 ADC C15 LRADCO 0 LRADC1 C9 ADC 3V3 in 10kQT in 3V3 JTAG D12 JTAG TMS JTAG TCK E11 JTAG 3V3 in 10kQT 10kQT in 3V3 JTAG E12 JTAG TDI 4 JTAG TRST D14 JTAG 3V3 in 10kaT 4V2 POWER A15 Battery 6 JTAG_RTCK E14 JTAG 3V3 out 10kQT 4V2 POWER A15 Battery 8 JTAG_TDO E13 JTAG 3V3 out ov POWER GND 80 GND POWER ov Page 12 User s Manual TOMa28 UM 104 2013 by TO Group 42 System components 4 2 1 Processor The Freescale processor i MX28 MCIMX287CVM4B based on the ARM926EJ S core is produced in 90 nm technology It provides a wide range of functions Illustration 2 gives an overview More information about the i MX28 processor is provided in the following table Table 7 Processor information Manufacturer Part number Temp range Package Silicon revision Freescale MCIMX287CVM4B 40 C to 85 C BGA 289 1 2 owe Leonam om mon wonn Internal Memory neon User VF Bee ns pe EL ou ki Illustration 2 i MX28 block diagram Source Freescale User s Manual TOMa28 UM 104 2013 by TO Group Page 13 Key functionalities ARM926EJ S CPU I Cache D Cache L2 Cache H Integrated SRAM EB CPU Clock 454 MHz BN DDR2 User interfaces LCD controller up t
19. DUART_RX PWM1 DUART_TX PWM2 LCD_Backlight_PWM PWM3 PWM3 PWM4 PWM4 PWM5 SAIFO BITCLK PWM6 SAIFO SDATAO PWM7 SAIF1 SDATAO Page 26 User s Manual TOMa28 UM 104 O 2013 by TO Group 4 2 11 GPIO The i MX28 processor provides GPIO ports as a second or multiple configuration with other function units The configuration can be taken from the Freescale Reference Manual Some of the GPIOs are directly named as GPIO and directly routed to the module connector All GPIOs are interrupt and wakeup capable 4 2 12 JTAG The JTAG signals are directly routed from the CPU to the module connector All necessary pull up and pull down resistors are present on the TQMa28 3V3 aoe x o 10k 10k 10k 10k JTAG TCK e JTAG TDI e JTAG TDO JTAG TMS e JTAG TRST e JTAG RTCK e Illustration 9 JTAG interface The additionally available signal DEBUG is pulled up on the TOMa28 Table 18 DEBUG function Debug Function DEBUG H JTAG DEBUG L Boundary scan 42 13 ADC The TOMa28 provides eight ADC inputs All inputs are blocked to GND with 10 nF The BSP supports four ADC inputs LRADC2 5 if a 4 wire touch is connected An adequate protection circuit has to be implemented on the carrier board User s Manual TOMa28 UM 104 O 2013 by TO Group Page 27 4 2 14 Audio SPDIF as well as the Serial Audio Interface SAIF
20. NS E i DEND DEREN es Illustration 3 Example of low impedance overriding the boot source In addition to signals LCD DOO D04 signals LCD RS and debug can also be overridden with low impedance resistors With LCD RS H can be switched to the boot setting LCD DOO D04 if the boot mode is set by the internal OTP eFuses HW OCOTP ROM7 0x8002C210 0 1 The signal DEBUG L switches the boundary scan on 4 2 1 2 Processor clock supply The processor requires two external clock signals which are supplied via the inputs RTC XTAL and XTAL A crystal oscillator at the input XTAL supplies a frequency of 24 MHz A 32 768 kHz crystal oscillator is connected to the input RTC XTAL All other clock signals required by the CPU are generated from the 24 MHz clock by the processor internal PLL The clock at RTC XTAL supplies the CPU internal clock 4 2 1 3 Memory management The TQMa28 is equipped with DDR2 SDRAM The start address of the SDRAM is 0x40000000 The eMMC flash is not managed by this architecture Page 16 User s Manual TOMa28 UM 104 2013 by TO Group 4 2 14 Pin multiplexing Depending on the configuration the pin multiplexing enables different pins to have different functions Freescale provides on their website the program IOMUXCC which supports the selection of the desired options The information in this manual corresponds to the signals used on the Starter Kit STK MBa28 and their support in the BSP TQ S
21. bout 1 kQ at the pins LCD DOO D03 Table 9 shows the configurations that are possible with the TOMa28 Table9 Boot mode configurations for the TOMa28 a e eb 3 l23 3 3 Boot mode S ace Esa E E an N gt oO SEMI RENE X 0 0 0 0 USBO USB 0 0 0 0 1 PCO ICO Master 3V3 1 0 0 0 1 PCO lPCO Master 1V8 0 0 0 1 0 SPI2 SPI Master SSP2 boot from flash 3V3 1 0 0 1 0 SPI2 SPI Master SSP2 boot from flash 1V8 0 0 0 1 1 SPI3 SPI Master SSP3 boot from flash 3V3 1 0 0 1 1 SPI3 SPI Master SSP3 boot from flash 1V8 0 0 1 0 0 GPMI NAND 3V3 1 0 1 0 0 GPMI NAND 1V8 0 0 1 0 1 Reserved 0 0 1 1 0 JTAG Wait JTAG connection mode 0 0 1 1 1 Reserved 0 1 0 0 O SPI3 SPI master from SSP3 boot from EEPROM 3V3 1 1 0 0 O SPI3 SPI master from SSP3 boot from EEPROM 1V8 0 1 0 0 1 SSPO SD MMC master on SSPO 3V3 default 1 1 0 0 1 SSPO SD MMC master on SSPO 1V8 0 1 0 1 0 SSP1 SD MMC master on SSP1 3V3 1 1 0 1 0 SSP1 SD MMC master on SSP1 1V8 0 1 0 1 1 Reserved 0 1 1 0 0 Reserved 0 1 1 0 1 Reserved 0 1 1 1 0 Reserved 0 1 1 1 1 Reserved User s Manual TOMa28 UM 104 2013 by TO Group Page 15 VCCNG R9 NE EO LCD RS T 5 R298 Te Brus LCD D04 3i Si 4E DIP Si R297 DET Nieder ie LCD D03 si R296 DAN N a LCD D02 T S4 R166 ae LCD Dot S4 1 R293 Hui AA Ee LCD_D0O 5 S4E OIP SD Li DEBUG
22. ed by suitable measures Printed pc boards are delivered in reusable packaging Modules and devices are delivered in an outer packaging of paper cardboard or other recyclable material Due to the fact that at the moment there is still no technical equivalent alternative for printed circuit boards with bromine containing flame protection FR 4 material such printed circuit boards are still used No use of PCB containing capacitors and transformers polychlorinated biphenyls These points are an essential part of the following laws HM The law to encourage the circular flow economy and assurance of the environmentally acceptable removal of waste as at 27 9 94 source of information BGBl 1994 2705 BE Regulation with respect to the utilization and proof of removal as at 1 9 96 source of information BGBl 1996 1382 1997 2860 El Regulation with respect to the avoidance and utilization of packaging waste as at 21 8 98 source of information BGBI 1998 2379 B6 Regulation with respect to the European Waste Directory as at 1 12 01 source of information BGBl 2001 3379 This information is to be seen as notes Tests or certifications were not carried out with respect to that Page 36 User s Manual TOMa28 UM 104 2013 by TQ Group 8 APPENDIX 8 1 References Table 21 Further applicable documents Company 1 i MX28 MCIMX Reference Manual MCIMX28RM 2010 Rev 1 Freescale TQ Systems GmbH i MuhlstraBe 2
23. electronics M24C64 WDW6TP 4 23 RTC The TOMa28 provides a processor internal RTC The current consumption of the RTC is approximately 10 pA A 32 768 kHz crystal oscillator clocks the RTC In the following table the parameters of the crystal oscillator are shown Table 13 Parameters of 32 768 kHz crystal oscillator Parameter Value Unit Remark Frequency tolerance versus temperature 20 ppm 25 C Frequency ageing 3 max ppm First year 25 C Parabolic Coefficient 0 04 x 10 Sc Additional deviation at temp 25 C When the power supply is switched off the internal RTC has to be buffered by a lithium ion battery to maintain its function The internal RTC is supplied from the processor and has no dedicated power supply pin If the characteristics of the internal RTC are not suitable the DS1339 is proposed as an external RTC on the carrier board 4 2 4 Temperature sensor A National Semiconductor LM73 temperature sensor is provided The sensor is placed on the topside of the module see D6 in Illustration 14 The interface of the sensor is shown in section 4 2 9 2 The Alert output of the sensor including a 10 kO pull up at the processor pin GPIOO 16 is optionally available By default the connection is not present Page 20 User s Manual TOMa28 UM 104 2013 by TO Group 4 2 5 SD card The TOMa28 provides an SD card controller SSP1 which is available at the module connector X1 Different
24. ertical 40 C to 85 C In the following table the applicable carrier board mating connectors are listed Table4 Carrier board connectors Manufacturer Order no No of pins Plating Board to board distance Tyco 5177984 3 80 0 2 um Gold 5mm Tyco 5084614 3 80 0 76 um Gold 5mm Tyco 5179029 3 80 0 2 um Gold 6mm Tyco 5084615 3 80 0 76 um Gold 6mm Tyco 5179030 3 80 0 2 um Gold 7mm Tyco 1 5179030 3 80 0 76 um Gold 7mm Tyco 5179031 3 80 0 2 um Gold 8mm Tyco 6123002 3 80 0 76 um Gold 8mm The board to board distance results from the height of the TOMa28 connector and the connector on the carrier board The drawings of the TQMa28 can be found in section 6 When using the processor signals the multiple pin configurations by different processor internal function units must be taken note of The pins of the module connectors are described in detail in the following tables In addition to direction pin name and pin number external and internal pull up or down wirings as well as the references to I O voltage and processor pin characteristics are listed Page 10 4 1 1 1 Q User s Manual TQMa28 UM 104 2013 by TQ Group Module connector X1 Table 5 Pin assignment module connector X1 amp IS E Q a a s s E ov POWER GND 1 2 GND POWER ov o
25. g to the requirements of electromagnetic compatibility EMC Depending on the target system anti interference measures may still be necessary to guarantee the adherence to the limits for the overall system Following measures are recommended Bi Robust ground planes adequate ground planes on the printed circuit board E A sufficient number of blocking capacitors in all supply voltages IE Fastor permanent clocked lines e g clock should be kept short avoid interference of other signals by distance and or shielding besides notice not only the frequency but also the signal rise times Wi Filtering of all signals which can be connected externally also slow signals and DC can radiate RF indirectly 7 2 ESD In order to avoid interspersion on the signal path from the input to the protection circuit in the system the protection against electrostatic discharge should be arranged directly at the inputs of a system As these measures always have to be implemented on the carrier board no special preventive measures were planned on the TOMa28 Following measures are recommended for a carrier board M Generally applicable Shielding of the inputs shielding connected well to ground housing on both ends Wi Supply voltages Protection by suppressor diode s Bi Slow signal lines RC filtering perhaps Zener diode s BE Fast signal lines Integrated protective devices suppressor diode arrays 7 3 Operational safety and personal security Due to
26. le connectors M 1588 Event2 out Freescale EN ETHO 1588 Event2 out M 1588 Event3 out Freescale EN ETHO 1588 Event3 out M 1588 Event2 in Freescale EN ETHO 1588 Event2 in M 1588 Event3 in Freescale EN ETHO 1588 Event3 in By turning off pre set functions and switching on 1588 features more 1588 Events can be provided User s Manual TOMa28 UM 104 2013 by TO Group Page 23 4 2 9 Serial interfaces 4 2 9 1 UART In Hi Speed mode the baud rate is up to 3 25 Mbit s at 1 5 MHz XCLK The DUART is specified only up to 115 2 kbit In the default setting the following UARTS are available at the module connectors AUARTO TX RX CTS RTS AUARTI TX RX AUART3 TX RX CTS RTS AUARTA TX RX CTS RTS DUART TX RX The UART signals are routed to the module connectors as LVTTL signals They may need driver s devices on the carrier board to be used as external signals In addition filtering and EMC protection for the UART signals has to be provided on the carrier board Page 24 User s Manual TOMa28 UM 104 2013 by TO Group 4 2 9 2 IC bus The bus clock is set to 100 kHz but can be configured up to 400 kHz by software Illustration 8 Interface of the C buses There are two devices with an lC interface on the module Both devices are connected to lC bus 1 HM Temperature sensor M EEPROM The following table shows the associated address
27. o 24 bit per pixel WVGA HM Touch interface 4 wire 5 wire HM Graphics support scaling rotation alpha blending colour space conversion Interfaces M 2x USB 2 0 Hi Speed Host interface USBO is OTG capable E 2x FlexCAN modules B 2xconfigurable SPI 2 x SSI IPS 5 x UART MMC SDIO 2 x lC H 2x Ethernet with IEEE 1588 extension Package E BGA 289 Other functionality of the processor shown in the block diagram can be looked up in the Reference Manual All essential pins of the processor except the DDR2 SDRAM interface and the eMNC are routed to the module connectors 4 2 1 1 Boot modes After a reset the boot mode of the i MX28 is configured in a boot sequence by reading the voltage levels of the boot mode pins The following table shows the relevant pins as well as the assignment of the matching resistors On the TOMa28 the eMMC boot mode SD MMC Master on SSPO 3V3 is fixed Table 8 Configurable boot pins on the TOMa28 Configuration resistors Pin Function name Boot mode name Function 10 kQ PU 10 kO PD K2 LCD DO BMO Boot mode select R13 K3 LCD D1 BM1 Boot mode select R17 L2 LCD D2 BM2 Boot mode select R16 L3 LCD D3 BM3 Boot mode select R14 M2 LCD D4 Voltage Select Boot mode select R15 Page 14 User s Manual TOMa28 UM 104 2013 by TO Group To boot from another source rather than the module internal eMMC flash the boot default can be changed by resistors of a
28. reteretenaseonssenssasasaoasoosssasnsasasoosssosnsasasooanoosnnou 33 Thermal management nenenssessseessenssennssunssenssensnunssenssenssnnnsnunssenssennsnunssenssenssnnnssnnssenssnnnsnunnen 33 Structural requirements eesseesssssssecseesssessssecseecsscssssecsecsscssseecseecssecsseesasecsuessseesatecsecseesaeenseets 33 SAFETY REQUIREMENTS AND PROTECTIVE REGULATIONS eene 34 2 P MX 34 ESD S 34 Operational safety and personal security 34 Climatic and operational conditions 34 Reliability and service lif Letateteeeetereteeateeeteratanasenassasssanasoonssasssasnsanasoosssasasaoasoasnsasnnoonnn 35 Environment protectiOn eese eene tenente ntentnntentnnte tenete tette tenentes ten tententenen 35 RoHS compliance uunenessenssenssennssnnssenssenssennssunssenssennsnunssnnssennsnunssnnssenssnnnssnnssenssnnnssunssnnssnnnsnansen 35 WEEE f G U At ON aan 35 HEIST EM E P r 35 AP PENN see as aAaiLa 36 BREF MI n mS TOSS ESSEN OSEE 36 User s Manual TOMa28 UM 104 2013 by TO Group Page iii Table directory Table 1 Terms and CONVENT ONS suse nm EDU NS 2 Table 2 AGKONMYAN Sik eti eki enki eau e ke ok te ii ot MM eee ee tia 5 Table 3 TOMa28 module CONNECLOF e41aetteettereteeesteastenasenasoesssesnsasnsoosssosnsasnsoonssosnsasnsosasoosn
29. s Page8 User s Manual TOMa28 UM 104 2013 by TQ Group 3 TECHNICAL DATA 3 1 System architecture and functionality 3 1 1 TQMa28 block diagram X1 80 pin plug connector X2 80 pin plug connector Illustration 1 TOMa28 block diagram 3 1 2 System functionality 3 1 2 1 System components Processor Freescale CPU MCIMX287CVM4B ARM926EJ S 454 MHz Crystal oscillators for the CPU 24 MHz and 32 768 kHz DDR2 SDRAM 16 bit 133 MHz 128 MiB eMMC NAND flash up to 16 GiB EEPROM via lC 64 Kibit Temperature sensor via lC 3 1 2 2 Interfaces HE 2x 80 pin module connector A detailed overview of all available users interfaces can be found in section 4 1 on page 9 Standard configuration other sizes of DDR2 SDRAM are optional 3 Standard configuration other sizes of eMMC are optional User s Manual TOMa28 UM 104 2013 by TO Group Page 9 4 ELECTRONICS SPECIFICATION 4 1 Interfaces to other systems and devices The TOMa28 is connected to the carrier board with 160 pins on two module connectors The module is held in the connectors with a considerable retention force To avoid damaging the modules connectors as well as the carrier board connectors while removing the module the use of an extraction tool is strongly recommended 4 1 1 Module connectors Table 3 TQOMa28 module connector Manufacturer Order no Description tyco 5177985 3 80 pin female connector 0 8 mm pitch v
30. separately calculated declared 1 2 Registered trademarks TQ Systems GmbH aims to adhere to the copyrights of all the graphics and texts used in all publications and strives to use original or license free graphics and texts All the brand names and trademarks mentioned in the publication including those protected by a third party unless specified otherwise in writing are subjected to the specifications of the current copyright laws and the proprietary laws of the present registered proprietor without any limitation One should conclude that brand and trademarks are rightly protected by of a third party 1 3 Disclaimer TQ Systems GmbH does not guarantee that the information in this manual is up to date correct complete or of good quality Nor does TQ Systems assume guarantee for further usage of the information Liability claims against TQ Systems GmbH referring to material or non material related damages caused due to usage or non usage of the information given in the manual or due to usage of erroneous or incomplete information are exempted as long as there is no proven intentional or negligent fault of TQ Systems GmbH TQ Systems GmbH explicitly reserves the rights to change or add to the contents of this manual or parts of it without special notification 1 4 Imprint TQ Systems GmbH Gut Delling M hlstra e 2 82229 Seefeld Tel 49 0 8153 9308 0 Fax 49 0 8153 9308 134 Email info tqs de Web http www tq group
31. sosnnoonnn 9 Table 4 Carrier board CONNECLOIS e 10eaaeetteettaeateeatoeantanatannsoesssennsaonsousssesnsaonsoonssosnsasasoonssosnnasasoonnsoen 9 Table 5 Pin assignment module connector X1 enensenssenssenssennsennssunnsenssennsnunnsenssennsnunnsennsennnnn 10 Table 6 Pin assignment module connector X2 vreerttereterteeassesssesssasasoosssosnsasasoonssosnsasnsoonssoon 11 Table 7 Processor information 12 Table 8 Configurable boot pins on the TOMa28 413 Table 9 Boot mode configurations for the TOMa28 14 Table 10 Memory models DDR2 SDRAM 17 Table 11 Memory models eMMC flash 18 Table 12 Memory model EEPROM sin enar m m REDE ERE 19 Table 13 Parameters of 32 768 kHz crystal OscillatOF rrerrreereresesesassonssasasasasoonsoosnsasasoonnsonn 19 Table 14 SD card interface cseecsesscssecssecsessssecssecsscssssecseecssesssecessecssecsucsesseesseesucssucecssecseeesucesseecsueeseeesess 20 Table 15 C device configuration sssssssssssssssssssssssssssssssssscccsssssssssssssssessssseceessssssssssssuecssseeseesssssssssssssseees 24 Table 16 Alternative SSP SAUVAR TA Sean 25 Table 17 AMI TT IRE EEE 25 Table 18 DEBUG function 26 Table 19 Supply voltages 28 Table 20 Current consumption 28 Table 21 Further applicable JOCUMENHS 4 avtaertteretenatenasoossanasanasoosssasasanasoonssosnsanasoonssosnsasnsoonnsoen 36 Page iv User s
32. ssasssassesssascasssassasssassasscaseascassasssasseassaasesstaasesssaadearsasseac e 8 Interfaces nennen 8 ELECTRONICS SPECIFICATION 9 Interfaces to other systems and devices 9 Module conmnectors i uiusiceris sisti ette rati ebbb PEE CHR EPEHRREBERE PARERE BERE PARERE HERREN PARERE REPAIR REPE 9 Module connector X1 enenennseennnsennnssennnsennnssennnsennnsnennnsennnsnennnstnnnrennnsennnerennnsennnssenenstnnnrenenten 10 Module connector X2 e 11 SysteM COMPONENTS me D LLSEL LS 12 PROCESS O iii H 12 zTe o itt ToTo M 13 Pro cessorclocksupplYamemmmemamemmnn 15 Memory management tentent sen sen sanson sen oenoanoanoanoanoanoanosnoanonnonnonnonnon 15 Pin multiplexing 16 CPU errata 16 Memory 17 DDR2 SDRAN i 17 EMMG e 18 Aida O 19 RTC M 19 Temperature SENSO ueesssssnssnsonsonennsnnssnsensenssnssnssnssssnnsnssnssnsonennennssnssnsenssnssnssssssssssnssnssnssnesnesnssneen 19 SIDET T KO 20 Graphicsintertaces LOD bUS sancii saaa aaa aaa aaa aa aaa aaa naan 21 UST AE R 21 Page ii User s Manual TOMa28 UM 104 O 2013 by TO Group Table of contents continued 4 2 8 4 2 9 4 2 9 1 4 2 9 2 4 2 9 3 4 2 9 4 4 2 10 4 2 11 4 2 12 4 2 13 4 2 14 4 2 15 4 2 16
33. t created 004 14 07 2011 Petz Table 6 Pin assignment revised Illustration 15 Replaced 100 25 10 2011 Petz All Complete rework 101 03 11 2011 Petz Table 19 Unit corrected Expression Accumulator replaced with battery 102 19 12 2011 Petz All Expressions containing the word battery stated more precisely Table 4 Values of plating corrected Table 6 Typo corrected LDADC4 LRADC4 WOE 2403 2012 Pete Table 6 Negation removed USB 0 PWR EN USB 1 PWR EN Section 5 Link to Wiki added 4 2 8 Info concerning LAN8720 clarified 104 28 03 2013 Petz 3 1 2 1 Max size of eMMC corrected All Signal description of SD_WP and SD_DETECT corrected User s Manual TOMa28 UM 104 2013 by TO Group Page 1 1 ABOUT THIS MANUAL 1 1 Copyright and licence expenses Copyright protected 2013 by TQ Systems GmbH This User s Manual may not be copied reproduced translated changed or distributed completely or partially in electronic machine readable or in any other form without the written consent of TO Systems GmbH The drivers and utilities for the used components as well as the BIOS are subject to the copyrights of the respective manufacturers The licence conditions of the respective manufacturer are to be adhered to Bootloader licence expenses are paid by TQ Systems and are included in the price Licence expenses for the operating system and applications are not taken into consideration and must be
34. t must be provided by the carrier board Alternatively a lithium ion battery can supply the TOMa28 In the following table the data of the supply voltage is shown The calculated current consumption worst case is at most 0 4 A The current consumption strongly depends on component placement software and wiring options Table 19 Supply voltages Parameter Min Typ Max Unit Supply voltage Vin standard 4 75 5 5 25 V Supply voltage Vin battery 3 1 42 V Table 20 Current consumption Parameter Vs Unit Min Typ Max Unit Current consumption standby 33 V 11 0 mA Current consumption standby 5 0 V 8 6 mA Current consumption in reset 5 0 V 20 5 mA Current consumption in Linux idle mode 5 0 V 140 mA Current consumption in Linux idle mode 33 V 140 mA Current consumption in Linux boot mode 5 0 V 220 mA Current consumption in Linux boot mode 33 V 220 mA Current consumption of internal RTC 21 3 V 10 uA 4 2 16 1 Implementation of power rails In combination with additional circuitry the i MX28 generates all internal required supply voltages as well as the associated power sequencing User s Manual TOMa28 UM 104 O 2013 by TO Group Page 29 4 2 16 2 Internal power supply The internal power supply consists of a chain of linear regulators and a DC DC converter At 5 V power supply the DC DC converter is not switched on by hardware
35. the LCD Two USB High Speed interfaces are available on the TOMa28 The first USBO is OTG capable The second port exclusively provides a Hi Speed host For both ports the PHY is integrated in the i MX28 The 5 V supply for the USB ports has to be implemented on the carrier board In addition filtering and EMC protection for the USB signals has to be provided on the carrier board Notes are to be found in the USB standard Page 22 User s Manual TOMa28 UM 104 2013 by TO Group 4 2 8 Ethernet The i MX28 provides two built in Fast Ethernet controllers which are designed for 10 and 100 Mbps Both provided RMII interfaces are available to the user directly at the module connectors The Ethernet interface is completed by a PHY on the carrier board The following illustration shows a circuit variant for an external Phy The shown LAN8720 is not assembled on the TOMa28 3V3 A ENETO MDIO 6 ENETO MDC ENET 0 1 TDO ENET 0 1 _TXD1 ENET 0 1 TX EN ENET 0 1 RXDO RXDO MODEO ENET 0 1 RXD1 RXD1 MODE1 ENET 0 1 RX EN CRS DV MODE2 RXER PHYADO ENET_INT INT REFCLKO ENET_FEC_RESET_B ENET_CLK XTAL1 CLKIN XTAL2 12k 10k Illustration 7 Interface to the Ethernet Phy Both controllers supply additional functions according to IEEE 1588 In addition to the IEEE 1588 Ethernet signals the following signals are available at the modu
36. uble Data Rate EEPROM Electrically Erasable Programmable Read Only Memory eMMC Embedded MultiMediaCard Flash EMC Electromagnetic Compatibility ESD Electrostatic Discharge FR 4 Flame Retardant 4 GPIO General Purpose Input Output IEEE Institute of Electrical and Electronics Engineers IPOO Ingress Protection 00 PO Inter Integrated Circuit PS Inter Integrated Circuit Sound JTAG Joint Test Action Group LCD Liquid Crystal Display LSB Least Significant Bit Mbps Megabit per second MMC Multimedia Card MSB Most Significant Bit MTBF Mean operating Time Between Failures NAND Not and OTG On The Go PHY Physical Interface PWM Pulse Width Modulation Page 6 User s Manual TOMa28 UM 104 O 2013 by TO Group Table2 Acronyms continued Acronym Meaning RMII Reduced Media Independent Interface RoHS Restriction of the use of certain Hazardous Substances RTC Real Time Clock SD card Secure Digital Card SD MMC Secure Digital Multimedia Card SDIO Secure Digital Input Output SDRAM Synchronous Dynamic Random Access Memory SMD Surface Mounted Device SPI Serial Peripheral Interface SRAM Static Random Access Memory SSI Synchronous Serial Interface TBD To Be Defined TTL Transistor Transistor Logic UART Universal Asynchronous Receiver Transmitter USB Universal Serial Bus WEEE Waste Electrical and Electronic Equipment WP Write Protection WVGA Wide Video Graphics Array 800 x 4
37. urther applicable documents presumed knowledge HE Specifications and manual of the used modules These documents describe the service functionality and special characteristics of the used module incl BIOS HE Specifications of the used components The manufacturer s specifications of the used components for example CompactFlash cards are to be taken note of They contain if applicable additional information that must be taken note of for safe and reliable operation These documents are stored at TQ Systems HM Chip errata It is the user s responsibility to make sure all errata published by the manufacturer of each component are taken note of The manufacturer s advice should be followed E Software behaviour No warranty can be given nor responsibility taken for any unexpected software behaviour due to deficient components HM General expertise Expertise in electrical engineering computer engineering is required for the installation and the use of the device User s Manual TOMa28 UM 104 2013 by TO Group Page 5 1 10 Acronyms and definitions The following acronyms and abbreviations are used in this document Table2 Acronyms Acronym Meaning A D Analog Digital ARM Advanced Risc Machine BGA Ball Grid Array BSP Board Support Package CAN Controller Area Network CPU Central Processing Unit DC Direct Current DDR Do
38. ut 3V3 LCD N1 LCD DOTCLK E 4 LCD VSYNC L1 LCD 3V3 out ov POWER GND 5 6 LCD HSYNC M1 LCD 3V3 out out 3V3 LCD K1 LCD_WR_RWN 7 8 GND POWER ov out 3V3 LCD M6 LCD RESET 9 10 LCD RS M4 LCD 3V3 out out 3V3 LCD P4 LCD RD E 11 IE LCD ENABLE N5 LCD 3V3 out out 3V3 LCD P5 LCD CS EE n LCD DOO K2 LCD 3V3 out 10kQT 10kQL out 3V3 LCD K3 LCD DO1 15 16 LCD DO2 L2 LCD 3V3 out 10 kQ L 10kQT out 3V3 LCD L3 LCD D03 17 18 LCD D04 M2 LCD 3V3 out 10kO 1 out 3V3 LCD M3 LCD DO5 19 20 LCD D06 N2 LCD 3V3 out out 3V3 LCD P1 LCD DO7 21 22 LCD DO8 P2 LCD 3V3 out out 3V3 LCD P3 LCD D09 23 24 LCD D10 R1 LCD 3V3 out out 3V3 LCD R2 LCD_D11 25 26 LCD_D12 T1 LED 3V3 out out 3V3 LCD T2 LCD_D13 27 28 LCD_D14 U2 LCD 3V3 out out 3V3 LCD U3 LCD D15 29 30 LCD_D16 T3 LCD 3V3 out out 3V3 LCD R3 LCD D17 31 32 LCD D18 U4 LCD 3V3 out out 3V3 LCD T4 LCD D19 33 34 LCD D20 R4 LCD 3V3 out out 3V3 LCD U5 LCD D21 35 36 LCD D22 T5 LCD 3V3 out out 3V3 LCD R5 LCD D23 37 38 GPIOO 24 R6 GPIO 3V3 bi 5V POWER VCC5V 39 40 GPIOO 6 U6 GPIO 3V3 bi 5V POWER VCC5V 41 42 GPIOO 27 P7 GPIO 3V3 bi ov POWER GND 43 A GPIOO 4 T GPIO 3V3 bi ov POWER GND 45 46 GPIO3 6 K5 GPIO 3V3 bi bi 3V3 GPIO N9 GPIOO 17 47 48 GPIOO 26 P6 GPIO 3V3 bi bi 3V3 SD CARD U8 SD DO 49 50 GPIOO 7 T6 GPIO 3V3 bi bi 3V3 SD CARD R8 SD D2 51 52 GPIOO 16 N7 GPIO 3V3 bi bi 3V3 SD CARD N8 SD CMD 53 54 GPIOO 5 R7 GPIO 3V3 bi in
39. ystems provides an xml file created with the program IOMUXCC which shows the pin multiplexing of the TOMa28 The user can configure specific pin multiplexing based on this xml file The xml file can be obtained from TQ Systems Support The accuracy of the generated configuration cannot be guaranteed It is the user s responsibility to conscientiously check the generated configuration Many of the CPU pins can be used in several different ways Please notice the notes about the wiring of these pins in the i MX28 Reference Manual before integration start up of your carrier board Starterkit 4 2 1 5 CPU errata Please pay attention to the latest errata of the Freescale CPU 4 2 2 4 2 2 1 Illustration 4 User s Manual TOMa28 UM 104 O 2013 by TO Group Page 17 Memory DDR2 SDRAM DATA 0 15 ADDR BUS 0 14 EMI DQMO EMI DQS0 EMI_DQSO EMI DOMI EMI DQS1 EMI DOS EMI BAO EMI BA EMI BA2 EMI CLK EMI CLK EMI_CEO EMI_RAS EMI CASE EMI WE EMI CKE EMI ODTO 1V8 Interface to DDR2 SDRAM DATIO 15 A 0 14 Ai5 LDM LDQS LDQS NU UDM UDQS The memory provided by Micron is assembled as the standard component If the Hynix SDRAM is assembled the temperature range of the module is reduced to 0 to 85 C The following table gives an overview of the possible alternatives Table 10 Memory models DDR2 SDRAM Manufacturer Hynix 128 MiB Manufacturer s number
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