78K0 CAN family
Contents
1. 3 0 Kbytes DCAN 2 transmit 4 x 28 LCD uPD780948 A 100 QFP_ 60Kbytes 2 0 Kbytes 16 receive RC subclock sound generator 2 x SIO Ordering Information Devices Part Number ROM RAM Flash ROM uPD780824BGC 8BT 32 Kbytes 1 5 Kbytes UPD780826BGC 8BT 48 Kbytes 1 5 Kbytes UPD78F0828BGC 8BT L 8 Kbytes 60 Kbytes Documentation Doc Number Devices Description Type U12326EJ3VOUMOO uPD780824 26 uUPD78F828 78KO Series Instruction User s Manual U13402EE1VOUMOO uPD780824 26 uPD78F828 Device User Manual Preliminary User s Manual U13446EE1VOPMOO uPD780824 uPD780826 Functional Description amp Preliminary Product U13240EE1VOPMOO Specification Information Tools Order Number Description Type 78KO NS PCI SET Software Hardware IE 78KO NS PO4 Hardware IE 780828 NS EM4 Hardware NP 80GC TQ Hardware Flashmaster Hardware FABOGC Harawar DSWIN I3HD 780xx Software Tool Kit includes Assembler C Compiler Debugger In circuit Emulator PC Interface Board and Power Supply For further information on NEC s 78KO family or other NEC products visit our European website at www ee nec de uPD78F0828B uPD780824 26B 8 bit Microcontrollers NEC Electronics Europe GmbH Oberrather Str 4 D 40472 D sseldorf Tel 02 11 65 03 01 Fax 02 11 65 03 3 27 NEC Electronics Germany GmbH Kanzlerstr 2 D 40472 D sseldorf Tel 02 11 65 03 02 Fax 02 11 65 03 4 90 Podbielskistr 164 D 30177 Hannov2. MHz Powerful instruction set Bit manipulation in entire address space Built in multiply and divide instructions DCAN Interface 2 transmit buffers up to 16 program receive buffers Serial interface 2 x 3 wire 1 x UART e 4x28 segments LCD controller driver e 5 channel 8 bit A D converter including power failure detector e Timer channels 1 x 16 bit timer 3 x 8 bit timer event counter watch timer watchdog timer e Sound generator e Four universal stepper motor drivers e Vectored interrupts 20 internal 3 external e 591 O ports e Built in clock oscillator circuit e Standby control HALT STOP mode e Operating supply voltage 4 0 5 5 V e 80 pin QFP package 14 mm x 14 mm e Operating temperature 40 to 85 C 8 bit Interrupt Control INTPO 3 A D Converter amp Kd ANIO ANI4 Power Fail Detection _ VSS a A VREF AVDD CRxD KS DCAN Interface CTxD pone 28 x 4LCD lt gt Controller Driver 59 I O Pins AVSS Kk 59 I O Pins gt 59 0 Pins C Sound Generator gt SGOA SGO __ SGO SGOF System Control RESET RxD gt UART TxD BRG Standby Control X2 E Universal Stepper Clock Output A a PP SM21 SM24 CONAI PCL Controller Driver SM31 SM34 SM41 SM44 Functional Block Description CPU DCAN Module A D Converter Serial Interface Timer LCD Driver Sound Generator Instrument D
3. fitness for particular purpose NEC does not assume any responsibility for circuits shown or claim that they are free from patent infringement Product specifications are subject to change without notice To ensure that you have the latest product data please contact your local NEC sales office NEC Electronics Europe GmbH
4. ctor that generates an internal interrupt on recognizing an analog input above below a certain voltage The 8 bit conversion time per channel is typically below 18 us at 8 MHz The A D resistor chain can be switched off to reduce power consumption The serial interface includes one UART Universal Asynchronous Receiver Transmitter that supports transfer rates up to 125 kbps A dedicated baud rate generator sets the transfer rate Two 3 wire CSI Clocked Serial Interface for transfer rates up to 500 Kbps are also provided A flexible timer offers a total of 6 timer channels One channel 16 bit timers can be used for precise pulse measurements with up to three 16 bit capture registers Two three channel 8 bit timers can be used as interval timers for PWM output and as external event counters The watch timer generates a watch time and can be used simultaneously as an interval timer The on chip watchdog timer monitors the CPU and generates either an internal reset or a non maskable interrupt It can also be used as an additional interval timer if the watchdog function is not required The LCD controller driver can drive up to 112 LCD segments 28 segments 4 commons All LCD segments are shared with ports and can be selected bitwise to ensure maximum port pin availability if the application does not require all LCD segments The sound generator produces sounds composed of a frequency output and a 32 64 KHz PWM signal for volume control The generat
5. ed frequency is in the range of 256 Hz to 7 7 KHz It can be used for simple alarm sounds like buzzer gong and beeper The on chip universal instrument motor drivers are able to drive 4 cross coil stepper motors with up to 30 mA drive capability per coil Alternatively the outputs can be used as simple 8 channel 9 bit PWM outputs or as high drive output ports uPD78F0828B uPD780824 26B 8 bit Microcontrollers CAN Family Roadmap At its European Technology Center ETC NEC has started work on a series of ASSPs Application Specific Standard Products targeted at the CAN market The CAN product roadmap based on the 78KO 8 bit CPU core is shown in the table below Located at NEC s European headquarters in Dusseldorf the ETC enables NEC to respond faster and more flexibly to the demands of European customers Further CAN products based on different microcontroller cores like the 78KO 8 bit or V850 32 bit RISC family are under development Part Number Package ROM FLASH RAM Features Miscellaneous uPD780814_ 64QFP 32Kbytes 1 5 Kbytes 8 3 MHz 240 ns RC subclock UPD780816 64QFP 48Kbytes 1 5 Kbytes A D converter clock monitor UPD78F0818 64QFP 60 Kbytes 3 0 Kbytes power fail detector 2 xslo UPD780824B 80QFP 32Kbytes 1 5 Kbytes UART 6 timer 2 x SIO stepper motor driver UPD780826B 80QFP 48Kbytes 1 5 Kbytes channels PWM sound generator UPD78F0828B 80 QFP 60 Kbytes
6. er Tel 05 11 3 34 02 0 Fax 05 11 3 34 02 34 Arabellastr 17 D 81925 Munchen Tel 0 89 92 10 03 0 Fax 0 89 92 10 08 15 Industriestr 3 D 70565 Stuttgart Tel 07 11 9 90 10 0 Fax O7 11 9 90 10 19 NEC Electronics BNL Boschdijk 187a NL 5612 HB Eindhoven Tel 0 40 2 44 58 45 Fax 0 40 2 44 45 80 NEC Electronics Scandinavia T by Centrum Entrance S 7th floor S 18322 Taby Tel 08 6 38 08 20 Fax 08 6 38 03 88 NEC Electronics France S A 9 rue Paul Dautier B P 52 F 78142 V lizy Villacoublay C dex Tel 01 30 67 58 OO Fax 01 30 67 58 99 NEC Electronics France S A Representacion en Espana Juan Esplandiu 15 E 28007 Madrid Tel 091 5 04 27 87 Fax 091 5 04 28 60 NEC Electronics Italiana S R L Via Fabio Filzi 25A 20124 Milano Tel 02 66 75 41 Fax 02 66 75 42 99 Rome Office Via Monte Cervialto 131 00139 Roma Tel 06 8 86 22 91 2 Fax 06 8 86 22 39 NEC Electronics UK Ltd Cygnus House Sunrise Parkway Linford Wood Milton Keynes GB MK14 6NP Tel 0 19 08 69 11 33 Fax O 19 08 67 02 90 Scotland Office Block 3 Carfin Industrial Estate Motherwell GB ML1 4UL Tel O 16 98 73 22 21 Fax O 16 98 83 38 68 Published by NEC Electronics Europe GmbH Printed in Germany July 2001 Document No U13639EE2V1PLOO With compliments NEC makes no warranty with respect to this documentation and disclaims any implied warranties of merchantability or
7. rivers The heart of the 78KO family is a powerful 8 bit CPU The 0 35 um process technology ensures an excellent power performance ratio The CPU is equipped with four register banks comprising eight 8 bit registers each These 8 bit registers can be concentenated to four 16 bit registers in order to support 16 bit operations eg 8 bit multiplication with a 16 bit result or 16 bit index addressing The 64 Kbyte linear address space is accessed via 16 bit addresses Bit manipulation operations are supported on all registers and the entire RAM address space Subclock CPU operation to reduce system power consumption is also supported With its minimized circuit design NEC s DCAN module is an ideal solution for providing full hardware support for most stand alone CAN communication applications Support of 11 bit and 29 bit identifiers spec 2 0B active is provided Transmission is supported by two independent transmit buffers with easy priority control With up to 16 mailboxes in the commu nication RAM the receive path provides virtually Full CAN performance The expansion RAM is used as CAN data RAM to the CPU The number of mailboxes for transmission and CAN can be configured by setting the DCAN s SFR registers Each message buffer allocates 16 bytes of expansion RAM resulting ina RAM requirement of maximum 288 bytes for the DCAN module The converter has 5 channels with 8 bit resolution One of the channels can be used as a failure dete
8. uPD78F0828B uPD780824 26B 8 bit Microcontrollers 78KO CAN family Product Letter Description The UPD78 F 082x with an on chip CAN interface is a member of a new branch of NEC s 78KO 8 bit microcomputer family Based on 0 35 um technology the devices integrate powerful application specific peripherals They offer outstanding perspectives and opportunities for system solutions at an excellent price performance ratio There are now over 200 different devices in NEC s established and powerful 78KO 8 bit microcomputer family All new products will be offered as mask ROM and Flash EPROM Applications The UPD78 F 082x is suited for dashboard applications including universal instrument motor drivers in the automotive sector In addition the device is ideal for industrial applications where CAN functionality is combined with control oriented peripherals In particular there is full Support for systems connected to an LCD display together with high drive outputs Features Block Diagram 16 bit Timer K_ gt ROM 32 48 Kbytes r O pe Flash Two 8 bit Timers 78KO K X 8 bit a Watch Timer Watchdog Timer SI SO Two 3 wire CSI kK SCK 32 48 Kbytes internal mask ROM or 60 Kbytes Flash EPROM Mask ROM 1 5 Kbytes internal RAM high speed 1024 bytes expansion 480 bytes Flash 3 Kbytes internal RAM high speed 1024 bytes expansion 2016 bytes Instructions execution time adjustable from 0 25 us to 4 us at 8
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