UPD17217 datasheet(5/84 Pages) NEC

5 / 84 page

µPD17215, 17216, 17217, 17218

CONTENTS

PIN FUNCTIONS ..............................................................................................................................

1.1

Pin Function List .....................................................................................................................................

1.2

Input/Output Circuits ...............................................................................................................................

1.3

Processing of Unused Pins .....................................................................................................................

1.4

Notes on Using INT and RESET Pins .....................................................................................................

MEMORY SPACE .............................................................................................................................

2.1

Program Counter (PC) ............................................................................................................................

2.2

Program Memory (ROM) ........................................................................................................................

2.3

Stack .......................................................................................................................................................

2.4

Data Memory (RAM) ...............................................................................................................................

2.5

Register File (RF) ...................................................................................................................................

PORTS ..............................................................................................................................................

3.1

Port 0A (P0A0-P0A3) ...............................................................................................................................24

3.2

Port 0B (P0B0-P0B3) ...............................................................................................................................24

3.3

Port 0C (P0C0-P0C3) ..............................................................................................................................

3.4

Port 0D (P0D0-P0D3) ..............................................................................................................................

3.5

Port 0E (P0E0-P0E3) ...............................................................................................................................24

3.6

INT Pin ....................................................................................................................................................

3.7

Switching Bit I/O .....................................................................................................................................

3.8

Specifying Pull-up Sesistor Connection ...................................................................................................

CLOCK GENERATOR CIRCUIT ......................................................................................................

4.1

Instruction Execution Time (CPU Clock) Selection .................................................................................

8-BIT TIMER AND REMOTE CONTROLLER CARRIER GENERATOR CIRCUIT ........................

5.1

Configuration of 8-bit Timer (with modulo function) .................................................................................

5.2

Function of 8-bit Timer (with modulo function) ........................................................................................

5.3

Carrier Generator Circuit for Remote Controller ......................................................................................

BASIC INTERVAL TIMER/WATCHDOG TIMER .............................................................................

6.1

Source Clock for Basic Interval Timer .....................................................................................................

6.2

Controlling Basic Interval Timer ..............................................................................................................

6.3

Operation Timing for Watchdog Timer ....................................................................................................

INTERRUPT FUNCTIONS ................................................................................................................

7.1

Interrupt Sources ....................................................................................................................................

7.2

Hardware of Interrupt Control Circuit ......................................................................................................

7.3

Interrupt Sequence .................................................................................................................................

UPD17217 Datasheet(PDF) 5 Page - NEC

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