ZKit-51-V664 User Manual
Contents
1. 12 4 UART I2C Pinmap eeerreneneresvervennrnnunsverernnennennnnnnenernsennennennnsvennsensnnsnnunsnenssnnenrennunsneee 13 5 0 110 PINNA joe 14 Legal Information eenorannnonnnnrnrrnnnavneenennenrrnnnavnesvennnnrensnnnnssvensnnenrsnnnessevnennenrrnsnnsnsveensnnnnnsene 16 Te 16 2 Limited Hardware Warranty ccccccccccccccccececececececececececececesesecesesesesesesesesesesesesesesesetees 16 Zilogic Systems Page iii ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 Chapter 1 Introduction ZKit 51 V664 is a 8051 micro controller development kit from Zilogic Systems ZKit 51 V664 is designed for a easy usage rapid prototyping and extensive product design ZKit 51 V664 is a single board computer which can be used as it is in the end product design 1 Features The ZKit 51 V664 comes with Graphics display and on board keys Well defined IO connector interface for 12 SPI PWM GPIO SIO and ADC USB and External power supply Programmable through USB Free and open source compiler and programmer Zilogic s open source software library Ready to go with Zilogic s Relay Motor Display boards etc add on boards 2 Applications CPU for embedded product Embedded application prototyping Teaching and learning embedded systems 3 Board Details The ZKit 51 V664 offers the following features NXP P89V664 micro controller with 64KB Flash and 2KB RAM 182. 10 This is the ground signal All other signals are referenced to this signal 3 SPI Pinmap The SPI header is terminated with serial peripheral interface SPI bus 4 general purpose IO and power supply Add on boards with SPI interface and general purpose 105 like MMC SD card EEPROM etc can be connected through this header 20 40 69 80 100 10 50 50 70 90 Table 3 3 SPI Header Pin Header Signal MCU Signal 1 VCC VCC Zilogic Systems Page 12 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 Pin WAN BR WN Header Signal MCU Signal SCK P4 0 SCK MISO P4 1 MISO MOSI P4 2 MOSI SS 4 3 55 DIOO P3 6 WRn 0101 P3 7 RDn DIO2 P1 3 CEXO DI03 P3 3 INT1 GND GND VCC Pin 1 SCK Pin 2 MISO Pin 3 MOST Pin 4 SS Pin 5 DIO Pin 6 9 GND Pin 10 This is the 5V power supply for the external devices The supply has a total current limit of 200mA when powered through USB This is Serial Clock signal The signal is a 5V logic signal but the output can drive a 5V device or 3 3V device with 5V tolerance This is the Master Input Slave Output signal The signal is a 5V logic signal This is the Master Output Slave Input signal The signal is a 5V logic signal but the output can drive a 5V device or 3 3V device with 5V tolerance This is the SPI chip select signal These are digital input output signals The signal is a 5V logic signal but the output can drive
3. 432MHz crystal On board Peripherals 128x64 graphics LCD with backlight 2K PC EEPROM 4 channel ADC 1 DAC Piezoelectric buzzer USB serial interface for communication and program download Four button keypad Push button with hardware de bounce interrupt input 2 debug LEDs Connectors USB type B connector 2 1mm power supply connector 14 pin header for Digital IO 10 pin header for UART and PC 10 pin header for SPI 10 pin header for PWM Zilogic Systems Page 1 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 10 pin header for Analog IO Zilogic Systems Page 2 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 Chapter 2 Board Design 1 Overview A bird s eye view of the devices available on the board is shown in the following block diagram Each device connectivity is described in detail in the following sections Figure 2 1 Block Diagram UART I2C 12E DAS 10 Pin Header P89V664 I2C Bus I2C EEPROM SPI 10 Pin Header SPELADE P89V664 SPI Bus LEDs DIO Buttons 14 Pin Header P89V664 USB UART I2C USB to Serial 10 Pin Header P89V664 Serial Bus I2C DAC SPI ADC AIO PWM 10 Pin Header 10 Pin Header P89V664 Zilogic Systems Page 3 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 2 Locating Components The location of the components on the board is indicated in the following diagram Figu
4. Products 8 alteration or connection of the Hardware Products to other systems equipment or devices other than those specifically approved by Zilogic Systems not in accordance to the board and on board device specifications 9 any use that is inconsistent with the user manual supplied with the Hardware Product The warranty period is not extended if Zilogic Systems repairs or replaces a warranted product or any parts Zilogic Systems may change the availability of limited hardware warranties at its discretion but any changes will not be retroactive 2 3 HARDWARE RETURN PROCEDURES If a Hardware Product or one of its component parts does not function as warranted during the warranty period and such nonconformance can be verified by Zilogic Systems Zilogic Systems at Zilogic Systems Page 16 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 its election will provide either return and replacement service or replacement with a refurbished part unit for the Hardware Product under the type of warranty service Zilogic Systems designates for that Hardware Product A defective Hardware Product or one of its component parts may only be returned to Zilogic Systems upon Zilogic Systems prior written approval Any such approval shall reference an RMA number issued by an authorized Zilogic Systems service representative If you do not register the Hardware Product with Zilogic Systems you may be required to present proof of purchase as evidenc
5. a hardware component to perform as warranted shall at its sole option either repair or replace the nonconforming hardware component All replacement parts furnished to you under this warranty shall be refurbished and equivalent to new and shall be warranted as new for the remainder of the original warranty period All defective parts which have been replaced shall become the property of Zilogic Systems All defective parts that have been repaired shall remain your property 2 2 EXCLUSIONS The foregoing warranties and remedies shall be void as to any Hardware Products damaged or rendered unserviceable by one or more of the following 1 improper or inadequate maintenance by anyone other than Zilogic Systems or Zilogic Systems authorized engineers 2 interfacing supplied by anyone other than Zilogic Systems 3 modifications alterations or additions to the Hardware Products by personnel not certified by Zilogic Systems or Zilogic Systems authorized engineers to perform such acts or other unauthorized repair installation or other causes beyond Zilogic Systems control 4 unreasonable refusal to agree with engineering change notice programs 5 negligence by any person other than Zilogic Systems or Zilogic Systems authorized engineers 6 misuse abuse accident electrical irregularity theft vandalism fire water or other peril 7 damage caused by containment and or operation outside the environmental specifications for the Hardware
6. are digital input output signals The signal is a 5V logic signal but the output can drive a 5V device or 3 3V device with 5V tolerance These pins can be used for hand shake and flow control signals like DTR RTS CTS etc This is the ground signal All other signals are referenced to this signal The DIO header is terminated with port PO and P1 signals along with power supply Add on boards with different functionalities can be connected through this header 20 40 60 100120 140 10 30 50 70 90110 130 Table 3 5 DIO Header Pin Header Signal MCU Signal 1 VCC VCC 2 DOO PQ 0 3 DO1 PO 1 4 DO2 P0 2 5 D03 P0 3 6 04 4 7 DO5 P0 5 8 D06 P0 6 9 D07 P0 7 10 DIOO P1 0 Zilogic Systems Page 14 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 Pin Header Signal MCU Signal 11 0101 1 1 12 102 P1 2 13 DI03 DIIS 14 GND GND VCC Pin 1 This is the 5V power supply for the external devices The supply has a total current limit of 200mA when powered through USB DO Pin 2 9 These are digital output signals The signal is a 5V logic signal but the output can drive a 5V device or 3 3V device with 5V tolerance These signals are pulled up to 5V through a 4 7K resistor since PO port does not have internal pull up DIO Pin 10 13 These are digital input output signals The signal is a 5V logic signal but the output can drive a 5V device or 3 3V device with 5V tolerance These signals can
7. BJECT MATTER OF THIS AGREEMENT UNDER ANY CONTRACT NEGLIGENCE STRICT LIABILITY OR OTHER LEGAL Zilogic Systems Page 17 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 OR EQUITABLE THEORY REGARDLESS OF WHETHER ZILOGIC SYSTEMS OR ITS SUPPLIERS WERE ADVISED OF THE POSSIBILITY OF SUCH DAMAGES FOR i ANY PUNITIVE INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOST DATA OR LOST PROFITS OR ii FOR COSTS OF PROCUREMENT OF SUBSTITUTE GOODS TECHNOLOGY OR SERVICES OR iii FOR ANY CLAIMS BASED ON ANY ERROR DEFECT OR NONCONFORMITY IN THE PRODUCTS OR SERVICE FOR ANY AMOUNT IN EXCESS OF THE PRICE PAID TO ZILOGIC SYSTEMS FOR SUCH DEFECTIVE PRODUCT S OR SERVICE OR IV FOR ALL OTHER CLAIMS NOT RELATED TO AN ERROR DEFECT OR NONCONFORMITY IN THE PRODUCTS ANY AMOUNTS IN EXCESS IN THE AGGREGATE OF THE AMOUNT PAID TO ZILOGIC SYSTEMS HEREUNDER DURING THE THREE 3 MONTHS PRECEDING THE DATE THE CAUSE OF ACTION AROSE WARRANTY DISCLAIMER EXCEPT AS STATED HEREIN ZILOGIC SYSTEMS MAKES NO WARRANTIES WITH RESPECT TO any PRODUCT license or SERVICE AND DISCLAIMS ALL Statutory or IMPLIED WARRANTIES INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE or arising from a course of dealing or usage of trade and any WARRANTIES OF NONINFRINGEMENT ZILOGIC SYSTEMS DOES NOT WARRANT THAT THE ZILOGIC SYSTEMS PRODUCT s WILL MEET any REQUIREMENTS or THAT THE OPERATION OF ZILOGIC SYSTEMS PRODUCTS WILL BE UNINTERRUPTED OR ERROR FRE
8. E Zilogic Systems Page 18
9. P1 0 P1 3 CEXO 74HCT25 12 Keypad The ZKit 51 V664 has 4 tactile push button switches connected to P2 4 to P2 7 The keypad connection details are shown in the following diagram Figure 2 12 Keypad Connection Diagram P89V51V664 MCU 13 Interrupt Key The ZKit 51 V664 has 1 tactile push button switch for testing interrupts The push button is hardware debounced and connected to INTR1 The following diagram shows the interrupt key connection details Figure 2 13 Interrupt Key Connection Diagram P89V51V664 MCU P3 3 INTR1 Zilogic Systems Page 10 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 Chapter 3 Connecting to ZKit 51 V664 This chapter describes the connectors in the ZKit 51 V664 1 PWM Pinmap The PWM header is terminated with 5 pulse width modulation signals and power supply Add on boards like LED control motor control can be connected through this header 20 40 60 80 100 10305070 90 Table 3 1 PWM Header Pin Signal Name MCU Signal 1 VCC VCC 2 PWM 0 P1 4 CEX1 3 PWM 1 P1 5 CEX2 4 PWM 2 P3 4 CEX3 5 PWM 3 P3 5 CEX4 6 PWM 4 P1 3 CEXO 7 PWM 5 ECI P1 2 8 Freq In 0 T2EX P1 1 9 Freq In 1 T2 P1 0 10 GND GND VCC Pin 1 This is the 5V power supply for the external add on boards The supply has a total current limit of 200mA when powered through USB PWM Pin 2 7 These are PWM output signals The PWM signal when active produces a stream of pulses whose width
10. ZKit 51 V664 8051 Development Kit User Manual 2 0 Oct 2013 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 This work is licensed under the Creative Commons Attribution Share Alike 2 5 India License To view a copy of this license visit http creativecommons org licenses by sa 2 5 in or send a letter to Creative Commons 171 Second Street Suite 300 San Francisco California 94105 USA ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 Table of Contents Te Introduction 1 TL FAUSA 1 2 51 19 4 1 3 Board vin cacsadadeuccaivescecedigedecd eiesteesdadeaccoadaecasadiaedeatatens 1 2 Board DESIGN Lake 3 LOVENE m 3 2 ve ees Eee 4 3 P wer 4 LM ER 5 MIEL 6 6 LED DIG 0 EEE EEE 7 Z LE EEPROM 8 8 SPLADG aE E 8 126 AC anse 8 10 Piezoelectric 22 ges 9 Debug 1 05 9 127 Keypad 10 13 ATOR PUP t 10 3 Connecting to ZKit 51 V664 caen erede a e aeda 11 Bener 11 2 PAPA ee 12
11. a 5V device or 3 3V device with 5V tolerance These lines can be used to interface any extra signals required for a SPI devices like SD Card etc or can be used as chip selects for four other devices This is the ground signal All other signals are referenced to the this signal 4 UART I2C Pinmap The UART I2C header is terminated with serial communication signals I C signals and power supply Add on boards with different functionalities can be connected through this header 20 40 60 10 30 50 100 70 90 Table 3 4 UART I2C Header Pin BW N Header Signal MCU Signal VCC VCC RXD P3 0 RXD TXD P3 1 TXD SCL P1 6 SCL SDA P1 7 SDA Zilogic Systems Page 13 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 Pin Header Signal MCU Signal 6 DIOO P3 6 WR 7 0101 P3 7 RD 8 DIO2 P1 3 CEX0 9 DIO3 P3 2 INTO 10 GND GND VCC Pin 1 This is the 5V power supply for the external devices The supply has a total current limit of 200mA when powered through USB RXD Pin 2 This is transmit line of serial IO This signal is a 5V CMOS TTL input TXD Pin 3 This is transmit line of serial IO This signal is a 5V CMOS TTL SCL SDA Pin 4 5 DIO Pin 6 9 GND Pin 10 5 DIO Pinmap output These are I C bus signals clock data and can be used to connect devices Any 5V tolerant IC device can be connected to the bus The signals are pulled up to 5V through a 4 7K resistor These
12. a transfer interface P2 0 7 P3 0 7 Entire USB protocol handled on the chip No USB specific firmware programming required Supports transmit and receive LED drive signals The ZKit 51 V664 uses USB Serial UART for serial communication between PC and the P89V664 MCU This is also used to download firmware by activating the bootloader of P89V664 MCU This is called In System Programming ISP Zilogic Systems Page 6 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 5 1 In System Programming The ZKit 51 V664 has a PROG push button which can be used to select between Programming mode and Serial Communication mode When the board is powered on it is in Serial Communication mode Press the PROG button to switch into Programming mode The current mode is indicated by the PROG LED The LED glows in the Programming mode In Programming mode the RTS is connected to the RESET of the MCU and DTR is connected to the PSEN of the MCU Flash programming applications like Smash and Flash Magic can utilize this feature to switch the device into ISP mode automatically without user intervention The following diagram shows the FT232R connection details Figure 2 5 FT232R Connection Diagram P89V664 MCU Reset Controller 6 LCD Display The ZKit 51 V664 has a TM12864 Sitronix chipset compatible 128x64 pixel monochrome LCD The LCD is connected to SPI lines of the MCU The following diagram shows the LCD pin connecti
13. and enhanced UART PCA Programmable Counter Array with PWM and Capture Compare functions Three 16 bit timers counters Four 8 bit I O ports WatchDog Timer WDT Support for 12 clock default or 6 clock mode selection via ISP Low EMI mode ALE inhibit Power down mode with external interrupt wake up The micro controller crystal frequency is 18 432 MHz 8051 based processors generate their serial port timing using a combination of external crystal and internal programmable divider chains This crystal frequency has been selected in order to ensure the following 1 the timing requirements of the controller s serial interface are met 2 the CPU runs at high speed in 6 clock mode Zilogic Systems Page 5 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 Power to the board is sourced either from the external regulated power supply or via USB power automatically Figure 2 4 Micro controller Block Diagram HIGH PERFORMANCE 8051 CPU 64 KB UART TXD Code Flash RXD 2KB SPICLK Data RAM SPI MOSI MISO SS PORT 0 TIMER 0 1 TO PO 0 7 T1 een m SR 3 en CEX 0 4 WATCHDOG TIMER P4 0 3 PRIMARY SCL 0 I2C BUS SDA 0 X1 SECONDARY SCL 1 CRYSTAL 2 OSCILLATOR gt I2C BUS SDA 1 5 USB Serial The ZKit 51 V664 has a FT232R USB to serial UART converter The FT232R has the following advanced features The FT232R is fully compliant with the USB 2 0 specification Single chip USB to asynchronous serial dat
14. ares and customer s location 2 5 ADDITIONAL RESPONSIBILITIES You agree To provide Zilogic Systems or its partner with sufficient and safe access to your facilities to permit Zilogic Systems to fulfill its obligations To ship back the faulty Hardware Product or replaceable unit suitably packaged quoting the RMA number to the Zilogic Systems designated location You shall ship the faulty Hardware Product once Zilogic Systems approves the RMA and provide the courier name and tracking number To securely erase from any Hardware Product you return to Zilogic Systems for any reason all programs and data not provided by Zilogic Systems with the Hardware Product You acknowledge that in order to perform its responsibilities under this Limited Hardware Warranty Zilogic Systems may ship all or part of the Hardware Product or its software to third party locations around the world and you authorize Zilogic Systems to do so 2 6 LIMITATION OF LIABILITY Zilogic Systems development kits are not designed authorized or warranted to be suitable for use in medical military aircraft space or life support equipment not in applications where failure or malfunction of a Zilogic Systems product can resonably be expected to result in personal injury death or severe property or environmental damage NOTWITHSTANDING ANYTHING ELSE IN THIS AGREEMENT OR OTHERWISE NEITHER ZILOGIC SYSTEMS NOR ITS SUPPLIERS WILL BE LIABLE WITH RESPECT TO ANY SU
15. be used as control and hand shake signals GND Pin 14 This is the ground signal All other signals are referenced to this signal Zilogic Systems Page 15 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 Appendix A Legal Information 1 Copying This work is licensed under the Creative Commons Attribution Share Alike 2 5 India License To view a copy of this license visit http creativecommons org licenses by sa 2 5 in or send a letter to Creative Commons 171 Second Street Suite 300 San Francisco California 94105 USA 2 Limited Hardware Warranty The warranties provided by Zilogic Systems in this Limited Hardware Warranty apply only to Hardware Products you purchase for your use and not for resale The term Hardware Product means a computing device with a specific function and limited configuration ability 2 1 LIMITED HARDWARE WARRANTY Zilogic Systems warrants that the hardware components of its Hardware Product shall be free from material defects in design materials and workmanship and will function under normal use and circumstances in accordance with the documentation provided for a period of one 1 year from the date of purchase of the Hardware Product Your sole and exclusive remedy and Zilogic Systems sole and exclusive liability for defective hardware components shall be that Zilogic Systems subject to the terms and conditions of this Section and solely upon confirmation of a defect or failure of
16. can be controlled through software An important parameter of a PWM signal is the duty cycle The duty cycle is defined as the ratio between the pulse duration and pulse period of a rectangular waveform The PWM signal can be used to control the power delivered to a load by controlling the duty cycle of the PWM signal PWM signals are generally used for Motor speed control LED brightness control power supplies and wave form generation The PWM signal is a 5V CMOS TTL output Freq In Pin 8 9 These are input signals used for event counting and frequency measurement These signals are 5V tolerant CMOS TTL inputs Zilogic Systems Page 11 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 2 AIO Pinmap The AIO header is terminated with 4 ADC channels 1 DAC and power supply Sensors can be connected to this header 20 40 60 100 10 3050 70 90 Table 3 2 AIO Header Pin Signal Name MCU Signal 1 VCC VCC 2 ADC 0 MCP3004 CHO 3 ADC 1 MCP3004 CH1 4 ADC 2 MCP3004 CH2 5 ADC 3 MCP3004 CH3 6 ADC 4 7 ADC 5 8 DAC 0 MCP4725 CHO 9 VREF OUT 4 096V 10 GND GND VCC Pin 1 This is the 5V power supply for the external add on boards The supply has a total current limit of 200mA when powered through USB ADC Pin 2 5 These are analog input signals connected to the MCP3004 ADC DAC Pin 8 This is analog output signal connected to the MCP4725 DAC VREF OUT Pin 9 This is the ADC s reference voltage GND Pin
17. e of your entitlement to warranty service The Hardware Product s serial number will be required for all RMA cases Transportation costs if any incurred in connection with the return of a defective item to Zilogic Systems shall be borne by You Any transportation costs incurred in connection with the redelivery of a repaired or replacement item to You by Zilogic Systems shall be borne by Zilogic Systems provided however that if Zilogic Systems determines in its sole discretion that the allegedly defective item is not covered by the terms and conditions of the warranty or that a warranty claim is made after the warranty period the cost of the repair by Zilogic Systems including all shipping expenses shall be reimbursed by You 2 4 HARDWARE REPLACEMENT PROCEDURES Zilogic Systems will attempt to diagnose and resolve your problem over the phone or e mail Upon determination of the hardware issue is related to a malfunction of one of the Hardware Product components an RMA process will be initiated by Zilogic Systems For Warranty Replacement service it is required that you deliver the faulty unit to a location Zilogic Systems designates and provide courier name and tracking number to Zilogic Systems After the Faulty unit is returned to Zilogic Systems Zilogic Systems will use commercially reasonable efforts to ship the replacement hardware within fourteen 14 business days Actual delivery times may vary depending on availability of the sp
18. on details Figure 2 6 LCD Connection Diagram GLCD P89V664 Zilogic Systems Page 7 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 7 IC EEPROM The ZKit 51 V664 has a CAT24AA02 EEPROM for data storage The CAT24AA02 is a 2 Kbit Serial EEPROM The memory is accessed via lC bus The maximum bus speed supported by the device is 400 kbit s The PC EEPROM is connected to the on chip 2 controller of the P89V664 MCU The following diagram shows the EEPROM pin connection details Figure 2 7 I2C EEPROM Connection Diagram EEPROM P89V664 MCU SCL P1 6 SDA P1 7 L 8 SPI ADC The ZKit 51 V664 has a Microchip MCP3004 ADC for analog to digital convertion The Microchip MCP3004 is a 4 channel SPI ADC which can sample at 200k samples sec The reference voltage of 4 096V for the ADC is generated by MCP1541 voltage reference device The device is accessed via a simple Serial Peripheral Interface SPI The SPI ADC is connected to the on chip SPI controller of the P89V664 MCU The following diagram shows the ADC pin connection details Figure 2 8 SPI ADC Connection Diagram MPC3004 MCP1541 P89V664 MCU AlO 10 Pin Header 9 C DAC The ZKit 51 V664 has a Microchip MCP4725 DAC for digital to analog convertion The MCP4725 is a low power high accuracy single channel 12 bit buffered voltage output Digital to Analog Convertor DAC The DAC uses the 5V power supply as the reference
19. re 2 2 Front View 1 ZILOGIC AIO 10 Pin Header E t3 GLCD z PWM 4 10 Pin Header a T Reset ET UART I2C 1 10 Pin Header Buzzer SPI f 10 Pin Header agree EX El Buzzer pees Em ed ut ia 2x G External Np Power Jack DIO Ei pis i 14 Pin Header n ca anemi USB Connector KEY2 KEY4 INTR Key Pad Interrupt Key 3 Power Supply The ZKit 51 V664 can be powered through USB or an external power supply Zilogic Systems Page 4 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 Figure 2 3 Power Supply Connection Diagram USB Connector USBPWR EXTPWR Selection Logic Power to Board EXT 7 5V 12V 500ma OD The external power supply if used should be a regulated power supply The regulated power supply should have the following charactersitcs Output Voltage 7 5V 12V Output Current gt 500mA Polarity Shown in diagram 4 CPU The heart of the ZKit 51 V664 is a Philips P89V664 micro controller The P89V664 is an 8 bit 80C51 5V low power micro controller with 64 kB Flash 2KB of data RAM and supports In System Programming ISP The main features of the micro controller are listed below Dual 100 kHz byte wide I C bus interfaces MHz to 40 MHz operating frequency in 12x mode 20 MHz in 6x mode 64 kB of on chip flash user code memory with ISP and IAP 2 kB RAM SPI Serial Peripheral Interface
20. voltage This device is accessed using the PC interface The following diagram shows the DAC pin configuration details Zilogic Systems Page 8 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 Figure 2 9 I2C DAC Connection Diagram MCP4725 P89V664 MCU SCL P1 6 SCL Alo SDA P17 ______ SDA VOUT 10 Pin Header 10 Piezoelectric Buzzer The ZKit 51 V664 has a piezoeletric buzzer that can be used to provide audible indications The buzzer is connectedto P1 3 pin By rapidly toggling the pin a tone can be generated on the buzzer Alternatively the on chip PCA Programmable Counter Array can be used to generate a pulse train to the buzzer Using PWM techniques both volume and tone can be controlled The buzzer is connected to P1 3 pin through jumper J1 When the jumper is closed P1 3 is connected to the buzzer The following diagram shows the buzzer connection details Figure 2 10 Buzzer Connection Diagram P89V664 MCU P1 3 CEXO Jumper J1 Buzzer 11 Debug LEDs The ZKit 51 V664 has two debug LEDs connected to P1 0 and P1 3 through a non inverting buffer By driving P1 0 and P1 3 low the LEDs can be switched On Alternatively the on chip PCA Programmable Counter Array can be used to generate a PWM signal to control the LED brightness Zilogic Systems Page 9 ZKit 51 V664 8051 Development Kit User Manual Rev 2 0 Figure 2 11 LEDs Connection Diagram VCC VCC P89V664 MCU
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