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UPD75236: 产品描述4-BIT SINGLE-CHIP MICROCOMPUTER; 文件大小817KB，共190页; 制造商NEC ( Renesas ); 官网地址https://www2.renesas.cn/zh-cn/

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UPD75236概述

4-BIT SINGLE-CHIP MICROCOMPUTER

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DATA SHEET

MOS INTEGRATED CIRCUIT

PD75236

4-BIT SINGLE-CHIP MICROCOMPUTER

DESCRIPTION

The

PD75236 is a microcomputer with a CPU capable of 1-, 4-, and 8-bit-wise data processing, a ROM, a

RAM, I/O ports, a fluorescent display tube (FIP

) controller/driver, A/D converters, a watch timer, a timer/pulse

generator capable of outputting 14-bit PWM, a serial interface and a vectored interrupt function integrated on a

single-chip.

The

PD75236 has the more improved peripheral functions including the RAM capacity, FIP controller/driver

display capabilities, I/O ports, A/D converter and serial interface than those of the

PD75216A.

The

PD75236 is most suited for advanced and popular VCR timer and tuner applications, single-chip

configurations of system computers, advanced CD players and advanced microwave ovens.

The

PD75P238 PROM product and various types of development tools (IE-75001-R, assemblers and others)

are available for evaluation in system development or small-volume production.

FEATURES

Built-in, large-capacity ROM and RAM

• Program memory (ROM): 16K

• Data memory (RAM): 768

I/O port: 64 ports (except FIP dedicated pins)

Minimum instruction execution time: 0.95

(when operated at 4.19 MHz)

Instruction execution time varying function to

achieve a wide range of power supply voltages

Built-in programmable FIP controller/driver

• Number of segments: 9 to 24

• Number of digits: 9 to 16

8-bit A/D converter: 8 channels

Powerful timer/counter function: 5 channels

8-bit serial interface: 2 channels

Interrupt function with importance attached to

applications

Product with built-in PROM:

PD75P238

ORDERING INFORMATION

Ordering Code

Package

94-pin plastic QFP (20

20 mm)

Quality Grade

Standard

PD75236GJ-×××-5BG

Please refer to “Quality grade on NEC Semiconductor Devices” (Document number IEI-1209) published by

NEC Corporation to know the specification of quality grade on the devices and its recommended applications.

The information in this document is subject to change without notice.

Document No. IC-2677A

(O. D. No.

IC-8092A)

Date Published February 1993 P

Printed in Japan

The mark

shows major revised points.

PD75236

CONTENTS

PIN FUNCTIONS ......................................................................................................................................... 7

1.1

1.2

1.3

1.4

PORT PINS ........................................................................................................................................................... 7

NON-PORT PINS .................................................................................................................................................. 9

PIN INPUT/OUPUT CIRCUIT LIST ................................................................................................................... 11

RECOMMENDED CONNECTIONS OF

PD75236 UNUSED PINS ............................................................... 15

PD75236 ARCHITECTURE AND MEMORY MAP................................................................................ 16

2.1

2.2

2.3

DATA MEMORY BANK CONFIGURATION AND ADDRESSING MODE ..................................................... 16

GENERAL REGISTER BANK CONFIGURATION ............................................................................................ 19

MEMORY MAPPED I/O .................................................................................................................................... 22

INTERNAL CPU FUNCTIONS .................................................................................................................. 28

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

PROGRAM COUNTER (PC): 14 BITS ..............................................................................................................

PROGRAM MEMORY (ROM): 16256 WORDS

8 BITS ...............................................................................

DATA MEMORY ................................................................................................................................................

GENERAL REGISTER: 8

4 BITS

4 BANKS ...............................................................................................

ACCUMULATOR ...............................................................................................................................................

STACK POINTER (SP) AND STACK BANK SELECT REGISTER (SBS) .......................................................

PROGRAM STATUS WORD (PSW): 8 BITS ...................................................................................................

BANK SELECT REGISTER (BS) .......................................................................................................................

PERIPHERAL HARDWARE FUNCTIONS ............................................................................................... 41

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

4.10

4.11

4.12

DIGITAL INPUT/OUTPUT PORTS ................................................................................................................... 41

CLOCK GENERATOR ........................................................................................................................................ 50

CLOCK OUTPUT CIRCUIT ................................................................................................................................ 58

BASIC INTERVAL TIMER ................................................................................................................................. 61

TIMER/EVENT COUNTER ................................................................................................................................ 63

WATCH TIMER .................................................................................................................................................. 69

TIMER/PULSE GENERATOR ........................................................................................................................... 71

EVENT COUNTER ............................................................................................................................................. 77

SERIAL INTERFACE .......................................................................................................................................... 79

A/D CONVERTER ........................................................................................................................................... 113

BIT SEQUENTIAL BUFFER: 16 BITS ............................................................................................................. 119

FIP CONTROLLER/DRIVER ............................................................................................................................ 119

INTERRUPT FUNCTIONS ...................................................................................................................... 131

5.1

5.2

5.3

5.4

5.5

INTERRUPT CONTROL CIRCUIT CONFIGURATION ...................................................................................

INTERRUPT CONTROL CIRCUIT HARDWARE DEVICES ...........................................................................

INTERRUPT SEQUENCE ................................................................................................................................

MULTI-INTERRUPT SERVICE CONTROL .....................................................................................................

VECTOR ADDRESS SHARING INTERRUPT SERVICING ...........................................................................

131

133

138

139

141

STANDBY FUNCTIONS ......................................................................................................................... 142

6.1

6.2

6.3

STANDBY MODE SETTING AND OPERATING STATE .............................................................................. 142

STANDBY MODE RELEASE .......................................................................................................................... 144

OPERATION AFTER STANDBY MODE RELEASE ....................................................................................... 146

UPD75236相似产品对比

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描述	4-BIT SINGLE-CHIP MICROCOMPUTER	4-BIT SINGLE-CHIP MICROCOMPUTER

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