W742E/C811
| Model | W742E/C811 |
| Description | 4 BIT MICROCONTROLLER |
| PDF file | Total 60 pages (File size: 732K) |
| Chip Manufacturer | WINBOND |
W742E/C811
4-BIT MICROCONTROLLER
Table of Contents-
1.
2.
3.
4.
5.
GENERAL DESCRIPTION .............................................................................................................3
FEATURES.....................................................................................................................................3
PIN CONFIGURATION...................................................................................................................5
3.1
W742C811 PAD List .........................................................................................................6
PIN DESCRIPTION ........................................................................................................................9
FUNCTIONAL DESCRIPTION .....................................................................................................11
5.1
5.2
5.3
Program Counter (PC) ....................................................................................................11
Stack Register (STACK)..................................................................................................11
Program Memory (ROM).................................................................................................12
5.3.1
5.3.2
ROM Page Register (ROMPR) .........................................................................................13
ROM Addressing Mode ....................................................................................................13
Architecture ......................................................................................................................15
RAM Page Register (PAGE).............................................................................................15
WR Page Register (WRP)................................................................................................16
Data Bank Register (DBKRH, DBKRL).............................................................................17
RAM Addressing Mode.....................................................................................................18
5.4
Data Memory (RAM)........................................................................................................15
5.4.1
5.4.2
5.4.3
5.4.4
5.4.5
5.5
5.6
5.7
5.8
5.9
5.10
5.11
5.12
Accumulator (ACC) .........................................................................................................19
Arithmetic and Logic Unit (ALU) ......................................................................................19
Main Oscillator.................................................................................................................19
Sub-oscillator...................................................................................................................20
Dividers............................................................................................................................20
Dual-clock Operation .......................................................................................................20
Watchdog Timer (WDT) ..................................................................................................21
Timer/Counter .................................................................................................................22
5.12.1
5.12.2
Timer 0 (TM0) .................................................................................................................22
Timer 1 (TM1) .................................................................................................................23
Mode Register 1 (MR1) ..................................................................................................25
5.13
5.14
5.15
5.16
Mode Register 0 (MR0) ...................................................................................................25
5.13.1
Interrupts .........................................................................................................................25
Stop Mode Operation ......................................................................................................27
5.15.1
Stop Mode Wake-up Enable Flag for RC and RD Port (SEF) ........................................27
Hold Mode Operation ......................................................................................................27
Publication Release Date: December 2000
Revision A1
-1-
