W78IRD2 Data Sheet
8-BIT MICROCONTROLLER
Table of Contents-
1.
2.
3.
4.
5.
6.
GENERAL DESCRIPTION ......................................................................................................... 3
FEATURES................................................................................................................................. 3
PIN CONFIGURATIONS ............................................................................................................ 4
PIN DESCRIPTION..................................................................................................................... 5
BLOCK DIAGRAM ...................................................................................................................... 6
FUNCTIONAL DESCRIPTION ................................................................................................... 7
6.1
6.2
6.3
6.4
6.5
6.6
RAM................................................................................................................................ 7
Timers/Counters ............................................................................................................. 7
Clock............................................................................................................................... 8
Power Management........................................................................................................ 8
Reduce EMI Emission .................................................................................................... 8
Reset............................................................................................................................... 8
7.
8.
9.
SPECIAL FUNCTION REGISTER.............................................................................................. 9
PORT 4 AND BASE ADDRESS REGISTERS ......................................................................... 31
INTERRUPTS ........................................................................................................................... 33
9.1
9.2
External Interrupts 2 and 3 ........................................................................................... 33
Interrupt Priority ............................................................................................................ 33
10.
11.
PROGRAMMABLE TIMERS/COUNTERS ............................................................................... 34
10.1 Timer 0 and Timer 1 ..................................................................................................... 34
10.2 Timer/Counter 2............................................................................................................ 36
ENHANCED FULL DUPLEX SERIAL PORT............................................................................ 39
11.1 MODE 0 ........................................................................................................................ 39
11.2 MODE 1 ........................................................................................................................ 40
11.3 MODE 2 ........................................................................................................................ 41
11.4 MODE 3 ........................................................................................................................ 42
11.5 Framing Error Detection ............................................................................................... 43
11.6 Multi-Processor Communications................................................................................. 43
PROGRAMMABLE COUNTER ARRAY (PCA)........................................................................ 44
12.1 PCA Capture Mode....................................................................................................... 47
12.2 16-bit Software Timer Comparator Mode ..................................................................... 48
12.3 High Speed Output Mode ............................................................................................. 48
12.4 Pulse Width Modulator Mode ....................................................................................... 49
12.5 Watchdog Timer ........................................................................................................... 49
12.
Publication Release Date: Sep. 5, 2005
- 1 -
Revision A6
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