TMP86C820FG データシートの表示（PDF） - Toshiba

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TMP86C820FG

8 Bit Microcontroller TLCS-870/C Series

Toshiba 

Table of Contents

TMP86C820FG

1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4 Pin Names and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2. Operational Description

2.1 CPU Core Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1.1 Memory Address Map............................................................................................................................... 9

2.1.2 Program Memory (MaskROM).................................................................................................................. 9

2.1.3 Data Memory (RAM) ................................................................................................................................. 9

2.2 System Clock Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2.1 Clock Generator...................................................................................................................................... 10

2.2.2 Timing Generator .................................................................................................................................... 12

2.2.2.1 Configuration of timing generator

2.2.2.2 Machine cycle

2.2.3 Operation Mode Control Circuit .............................................................................................................. 13

2.2.3.1 Single-clock mode

2.2.3.2 Dual-clock mode

2.2.3.3 STOP mode

2.2.4 Operating Mode Control ......................................................................................................................... 18

2.2.4.1 STOP mode

2.2.4.2 IDLE1/2 mode and SLEEP1/2 mode

2.2.4.3 IDLE0 and SLEEP0 modes (IDLE0, SLEEP0)

2.2.4.4 SLOW mode

2.3 Reset Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2.3.1 External Reset Input ............................................................................................................................... 31

2.3.2 Address trap reset .................................................................................................................................. 32

2.3.3 Watchdog timer reset.............................................................................................................................. 32

2.3.4 System clock reset.................................................................................................................................. 32

3. Interrupt Control Circuit

3.1 Interrupt latches (IL15 to IL2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.2 Interrupt enable register (EIR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3.2.1 Interrupt master enable flag (IMF) .......................................................................................................... 36

3.2.2 Individual interrupt enable flags (EF15 to EF4) ...................................................................................... 36

3.3 Interrupt Source Selector (INTSEL). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

3.4 Interrupt Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

3.4.1 Interrupt acceptance processing is packaged as follows........................................................................ 39

3.4.2 Saving/restoring general-purpose registers ............................................................................................ 40

3.4.2.1 Using PUSH and POP instructions

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