Preliminary W77E516
8-BIT MICROCONTROLLER
Publication Release Date: August 16, 2002
- 1 - Revision A1
Table of Contents-
1. GENERAL DESCRIPTION...........................................................................................................................3
2. FEATURES ..................................................................................................................................................3
3. PIN CONFIGURATIONS..............................................................................................................................4
4. PIN DESCRIPTION......................................................................................................................................5
5. BLOCK DIAGRAM .......................................................................................................................................6
6. FUNCTIONAL DESCRIPTION.....................................................................................................................7
I/O Ports.....................................................................................................................................................7
Serial I/O....................................................................................................................................................7
Timers........................................................................................................................................................8
Interrupts....................................................................................................................................................8
Data Pointers .............................................................................................................................................8
Power Management...................................................................................................................................8
On-chip Data SRAM ..................................................................................................................................8
7. MEMORY ORGANIZATION .........................................................................................................................8
Program Memory .......................................................................................................................................8
Data Memory .............................................................................................................................................9
Special Function Registers ......................................................................................................................10
Special Function Registers ......................................................................................................................11
Instruction ................................................................................................................................................34
Instruction Timing ....................................................................................................................................41
Power Management.................................................................................................................................49
Reset Conditions .....................................................................................................................................51
Reset State ..............................................................................................................................................52
Interrupts..................................................................................................................................................53
8. PROGRAMMABLE TIMERS/COUNTERS .................................................................................................56
Timer/Counters 0 & 1...............................................................................................................................56
Time-base Selection ................................................................................................................................57
Timer/Counter 2 .......................................................................................................................................59
Watchdog Timer ......................................................................................................................................62
Serial Port ................................................................................................................................................64
Framing Error Detection ..........................................................................................................................70
Multiprocessor Communications..............................................................................................................70
