W78IRD2 Datasheet, PDF (13/76 Pages) Winbond – 8-BIT MICROCONTROLLER

W78IRD2
Timer 1 MSB
Bit:
7
TH1.7
6
TH1.6
5
TH1.5
4
TH1.4
3
TH1.3
2
TH1.2
1
TH1.1
0
TH1.0
Mnemonic: TH1
Address: 8Dh
TH1.7-0: Timer 1 High byte
Auxiliary Register
Bit:
7
6
5
4
3
2
1
0
-
-
-
-
-
- EXTRAM ALEOFF
Mnemonic: AUXR
Address: 8Eh
BIT
NAME
7~2
-
Reserve
0 = Enable AUX-RAM
1 EXTRAM
1 = Disable AUX-RAM
0: ALE expression is enabled.
0 ALEOFF
1: ALE expression is disabled.
FUNCTION
Port 1
Bit:
7
P1.7
6
P1.6
5
P1.5
4
P1.4
3
P1.3
2
P1.2
1
P1.1
0
P1.0
Mnemonic: P1
Address: 90h
P1.7-0: General-purpose input/output port. Port-read instructions read the port pins, while read-modify-
write instructions read the port latch.
Port 4.1 Low Address Comparator
Bit:
7
6
5
4
3
2
1
0
P41AL.7 P41AL.6 P41AL.5 P41AL.4 P41AL.3 P41AL.2 P41AL.1 P41AL.0
Mnemonic: P41AL
Address: 94h
Port 4.1 High Address Comparator
Bit:
7
6
5
4
3
2
1
0
P41AH.7 P41AH.6 P41AH.5 P41AH.4 P41AH.3 P41AH.2 P41AH.1 P41AH.0
Mnemonic: P41AH
Address: 95h
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Publication Release Date: October 2, 2006
Revision A7