
Preliminary W77L32
8-BIT MICROCONTROLLER
Publication Release Date: November 2, 2001
Revision A1
- 1 -
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
8. INSTRUCTION..........................................................................................................................................28
Intruction Timing......................................................................................................................................35
9. POWER MANAGEMENT..........................................................................................................................43
Idle Mode.................................................................................................................................................43
Economy Mode........................................................................................................................................43
Power Down Mode ..................................................................................................................................44
10. RESET CONDITIONS.............................................................................................................................45
External Reset........................................................................................................................................45
Watchdog Timer Reset...........................................................................................................................45
Reset State.............................................................................................................................................46
11. INTERRUPTS .........................................................................................................................................47
Interrupt Sources....................................................................................................................................47
Priority Level Structure ...........................................................................................................................48
Interrupt Response Time........................................................................................................................49