W77E516A DATA SHEET
8-BIT MICROCONTROLLER
Table of Contents-
1.
2.
3.
4.
5.
GENERAL DESCRIPTION................................................................................................................. 3
FEATURES ........................................................................................................................................ 3
PIN CONFIGURATIONS.................................................................................................................... 4
PIN DESCRIPTION............................................................................................................................ 5
FUNCTIONAL DESCRIPTION........................................................................................................... 6
5.1
5.2
5.3
5.4
5.5
5.6
5.7
I/O Ports............................................................................................................................... 6
Serial I/O .............................................................................................................................. 6
Timers .................................................................................................................................. 7
Interrupts.............................................................................................................................. 7
Data Pointers ....................................................................................................................... 7
Power Management............................................................................................................. 7
On-chip Data SRAM............................................................................................................. 7
6.
MEMORY ORGANIZATION............................................................................................................... 8
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
Program Memory ................................................................................................................. 8
Data Memory........................................................................................................................ 8
Special Function Registers ................................................................................................ 10
Instruction........................................................................................................................... 32
Instruction Timing............................................................................................................... 39
Power Management........................................................................................................... 47
Reset Conditions................................................................................................................ 49
Reset State ........................................................................................................................ 50
Interrupts............................................................................................................................ 51
7.
PROGRAMMABLE TIMERS/COUNTERS ....................................................................................... 55
7.1
7.2
7.3
7.4
7.5
7.6
7.7
Timer/Counters 0 & 1......................................................................................................... 55
Time-base Selection .......................................................................................................... 56
Timer/Counter 2 ................................................................................................................. 58
Watchdog Timer................................................................................................................. 61
Serial Port .......................................................................................................................... 63
Framing Error Detection..................................................................................................... 68
Multiprocessor Communications........................................................................................ 68
8.
TIMED ACCESS PROTECTION...................................................................................................... 70
SECURITY BITS .............................................................................................................................. 72
ELECTRICAL CHARACTERISTICS................................................................................................. 73
9.
10.
10.1
Absolute Maximum Ratings ............................................................................................... 73
Publication Release Date: November 19, 2007
- 1 -
Revision A9
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