78K0 CAN family
Contents
1. Description Type 78K0 Toolset Tool Kit Software Hardware IE 780948 SL EM1 I O Emulation Board Hardware IE 780948 SL EM4 Probe Board Hardware EP 100GF SL Emulation Probe Hardware Flashmaster Flash Programmer Hardware FA 100GF Programming Adapter Hardware DSWIN I3HD 780xx Software Simulator Software Tool Kit includes Assembler C Compiler Debugger In circuit Emulator and PC Interface Board For further information on NEC s 78K0 family or other NEC products visit our European website at www nec de UPD78 F 0948 49 8 bit Microcontrollers NEC Offices 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 Dusseldorf Tel 02 11 65 03 02 Fax 02 11 65 03 4 90 K nigstr 12 D 30175 Hannover 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 91 31 82 Industriestr 3 D 70565 Stuttgart Tel 07 11 9 90 10 0 Fax 07 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 Taby 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 187 F 78142 Velizy Villacoublay C dex T l 01 30 67 58 00 Fax 01 30 67 58 99 NEC Electronics Fra2. counter watch timer watch dog timer 0 25 us at 8 MHz down to RC subsystem clock Sound generator Powerful instruction set e External access Bit manipulation in entire address space e Vectored interrupts 22 internal 5 external e Built in multiply and divide instructions e 79 1 0 ports e DCAN Interface 2 transmit buffers up to 16 RC subsystem clock oscillator program receive buffers e Built in clock oscillator circuit e 4x40 segments LCD controller driver Standby control HALT STOP mode Operating supply voltage 4 0 5 5 V e 100 pin QFP package 14 mm x 20 mm le ROM I CRxD Two 16 bit Timers gt 60 Kbytes n DCAN Interface CTxD a Mask or ja CCLK Flash 60 Kbytes gt SGOA TITO Two 8 bit Timers gt gt X Sound Generator CPU m SGO RAM 78K0 aes bi OOo Watch Timer 2 Kbytes 8 bit ASTB Watchdog Timer a A8 15 External SI EEPROM Bus Access ADO so 3 wire CSI N K 256 bytes t WR SCK optional RD SIO i a CL2 2 wi I K RC Subclock SCK wire CS T ul cut RxD UART I TxD BRG pone System Control RESET 50 839 AED if Standby Control X2 COMO GOM3 lt Controller Driver Interrupt al VLCO VLC3 ___ 79 I O Ports Control pet Clock Output lt INTPO 4 ANO AN7 _
3. UPD78 F 0948 49 78KO CAN family 8 bit Microcontrollers Product Letter Descri ption The uP D78 F 094x with an on chip CAN interface is a member of a new branch of NEC s 78K0 8 bit microcomputer family Based on 0 35 mm technology the devices integrate powerful application specific peripherals in combination with EEPROM and Flash memory technology They offer outstanding perspectives and opportunities for system solutions at an excellent price performance ratio There are now over 120 different devices in NEC s established and powerful 78K0 8 bit microcomputer family All new products will be offered as mask ROM and Flash EPROM Applications The uP D78 F 094x is suited for dashboard air conditioning and high end body controller applications in the automotive sector In addition the device is ideal for applications where CAN functionality is combined with control oriented peripherals In particular there is full support for systems connected to an LCD display Since the LCD output is shared with a general purpose pin non LCD applications are also covered Features e 60 Kbytes internal mask ROM orFlash EPROM 8 channel 8 bit A D converter including power e 2 Kbytes internal RAM high speed 1024 bytes failure detector LCD display 40 bytes expansion 992 bytes e Serial interface 3 wire 2 wire UART e 256 bytes EEPROM optional e Timer channels 2 x 16 bit timer 2 x 8 bit timer e Instructions execution time adjustable from event
4. _ aD Converter amp Control AVss power Fail Detection N AVREF gt NEC Functional Block Description CPU DCAN Module A D Converter Serial Interface Timer RC Subclock LCD Driver Sound Generator External Access The heart of the 78K0 family is a powerful 8 bit CPU The 0 35 mm process technology ensures an excellent power performance ratio Four 8 bit register banks can be concatenated to a 16 bit register to support 16 bit operation 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 Transmission is supported by two independent transmit buffers with easy priority control With up to 16 mailboxes in the communication 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 modul
5. e The converter has 8 channels with 8 bit resolution One of the channels can be used as a failure detector 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 A 3 wire CSI Clocked Serial Interface for transfer rates up to 1 25 Mbps is also provided An I C bus system can be configured using the 2 wire CSI A flexible timer offers a total of 6 timer channels Two channel 16 bit timers can be used to generate a basic time interval for PWM with compare registers and for precise measurements with up to three 16 bit capture registers Two 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 subclock is driven by an external RC connected to the CL1 CL2 terminal pair This is a very inexpensive method of generating a low frequency for much
6. lower power consumption in subclock mode The LCD controller driver can drive up to 160 LCD segments 40 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 PWM signal for volume control The generated 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 External access can be used to expand memory capacity or to connect external circuits using a parallel interface CAN Family Roadmap UPD78 F 0948 49 38 bit Microcontrollers At its European Technology Center ETC NEC has started work on a series of ASSPs Application Specific Standard P roducts targeted at the CAN market The CAN product roadmap based on the 78K0 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 78K0 8 bit or V850 32 bit RISC family are under development Part Number Package ROM FLASH RAM EEPROM Features Miscellaneous uPD780812 64 QFP 16 Kbytes 0 8 Kbytes 256 bytes RC subclock uPD780814 64 QFP 32 Kbytes 1 3 Kbytes 256 bytes clock monit
7. nce S A Representacion en Espana J uan Esplandiu 15 E 28007 Madrid Tel 01 5 04 27 87 Fax 01 5 04 28 60 NEC Electronics Italiana S R L Via Fabio Filzi 25A l 20124 Milano Tel 02 66 75 41 Fax 02 66 75 42 99 Rome Office Via Monte Cervialto 131 l 00139 Roma Tel 06 8 86 22 91 2 Fax 06 8 86 22 39 NEC Electronics UK Ltd Cygnus House Sunrise Parkway Milton Keynes GB MK14 6NP Tel 0 19 08 69 11 33 Fax 0 19 08 67 02 90 Scotland Office Block 3 Carfin Industrial Estate Motherwell GB ML1 4UL Tel 0 16 98 73 22 21 Fax 0 16 98 83 38 68 Published by NEC Electronics Europe GmbH Printed in Germany J une 1998 Document No U12097EE3VOPL00 With compliments NEC makes no warranty with respect to this documentation and disclaims any implied warranties of merchantability or 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
8. or SIO uPD78F0818 64 QFP 60 Kbytes 2 0 Kbytes 256 bytes 8 3 MHz 240 ns yuPD780823 80 QFP 24 Kbytes 1 0 Kbytes 256 bytes A D converter SIO universal instrument uPD780824 80 QFP 32 Kbytes 1 5 Kbytes 256 bytes power fail detector motor driver sound uPD78F0828 80 QFP 60 Kbytes 2 0 Kbytes 256 bytes UART 6 timer generator 4 x 28 LCD uPD780948 A 100 QFP 60 Kbytes 2 0 Kbytes channels PWM RC subclock uPD78F0948 100 QFP 60 Kbytes 2 0 Kbytes DCAN 2 transmit sound generator 2 x SIO uPD780949 A 100 QFP 60 Kbytes 2 0 Kbytes 256 bytes 16 receive 4 x40 LCD uPD78F0949 100 QFP 60 Kbytes 2 0 Kbytes 256 bytes external memory expansion Ordering Information Devices Documentation Tools Part Number ROM RAM Flash ROM EEPROM uPD78F0948GF 3BA 2 Kbytes 60 Kbytes uPD78F0949GF 3BA 2 Kbytes 60 Kbytes 256 bytes uPD780948 A GF 3BA 60 Kbytes 2 Kbytes uPD780949 A GF 3BA 60 Kbytes 2 Kbytes 256 bytes Doc Number Devices Description Type U12326EJ 3VOUMO00 uPD78094x A uPD78F094x 78K0 Series Instruction User s Manual U12670EE1VOUMOO uPD78094x A uP D78F094x Device User Manual Preliminary User s Manual U12237EE1VOPMO00 uPD780949 A uPD78F0949 Functional Description amp Preliminary Product U12375EE1VOPM00 uPD780948 A uPD78F0948 Target Specification Information Order Number
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