W742C810 データシートの表示（PDF） - Winbond

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W742C810

4-BIT MICROCONTROLLER

Winbond 

Preliminary W742C810

4-BIT MICROCONTROLLER

Table of Contents-

1. GENERAL DESCRIPTION ..........................................................................................................................3

2. FEATURES..................................................................................................................................................3

3. PIN CONFIGURATION ................................................................................................................................4

4. PIN DESCRIPTION......................................................................................................................................5

4.1 Pad List ..................................................................................................................................................6

5. BLOCK DIAGRAM .......................................................................................................................................8

6. FUNCTIONAL DESCRIPTION ....................................................................................................................9

6.1 Program Counter (PC) ...........................................................................................................................9

6.2 Stack Register (STACK) ........................................................................................................................9

6.3 Program Memory (ROM) .......................................................................................................................9

6.3.1 ROM Page Register (ROMPR) ................................................................................................10

6.4 Data Memory (RAM)............................................................................................................................10

6.4.1 Architecture ..............................................................................................................................10

6.4.2 Page Register (PAGE) .............................................................................................................11

6.4.3 WR Page Register (WRP) .......................................................................................................12

6.4.4 Data Bank Register (DBKR).....................................................................................................12

6.5 Accumulator (ACC) ..............................................................................................................................13

6.6 Arithmetic and Logic Unit (ALU)...........................................................................................................13

6.7 Main Oscillator......................................................................................................................................13

6.8 Sub-Oscillator.......................................................................................................................................13

6.9 Dividers ................................................................................................................................................13

6.10 Dual-clock operation...........................................................................................................................14

6.11 Watchdog Timer (WDT).....................................................................................................................15

6.12 Timer/Counter ....................................................................................................................................15

6.12.1 Timer 0 (TM0).........................................................................................................................15

6.12.2 Timer 1 (TM1).........................................................................................................................16

6.12.3 Mode Register 0 (MR0) ..........................................................................................................17

6.12.4 Mode Register 1 (MR1) ..........................................................................................................17

6.13 Interrupts ............................................................................................................................................18

6.14 Stop Mode Operation.........................................................................................................................19

6.14.1 Stop Mode Wake-up Enable Flag for RC Port (SEF).............................................................19

Publication Release Date: May 1999

-1-

Revision A1

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