W78ERD2 Datasheet, PDF (30/72 Pages) Winbond – 8-BIT MICROCONTROLLER

W78ERD2
Mnemonic: ACC
Address: E0h
ACC.7-0: The A (or ACC) register is the standard 8052 accumulator.
Port 4
Bit:
7
6
5
4
3
2
1
0
-
-
-
- P4.3/INT2 P4.2/INT3 P4.1
P4.0
Mnemonic: ACC
Address: E8h
P4.3-0: Port 4 is a bi-directional I/O port with internal pull-ups.
BIT NAME
FUNCTION
7
- Reserve
6
- Reserve
5
- Reserve
4
- Reserve
3
P4.3 Port 4 Data bit which outputs to pin P4.3 at mode 0, or external Interrupt 2.
2
P4.2 Port 4 Data bit which outputs to pin P4.2 at mode 0, or external Interrupt 3.
1
P4.1 Port 4 Data bit which outputs to pin P4.1 at mode 0.
0
P4.0 Port 4 Data bit which outputs to pin P4.0 at mode 0.
PCA Counter Low Register
Bit:
7
6
CL.7 CL.6
Mnemonic: CL
5
CL.6
4
CL.4
Address: E9h
3
CL.3
2
CL.2
1
CL.1
0
CL.0
PCA Module 0 Compare/Capture Low Register
Bit:
7
6
5
4
3
2
1
0
CCAP0L.7 CCAP0L.6 CCAP0L.5 CCAP0L.4 CCAP0L.3 CCAP0L.2 CCAP0L.1 CCAP0L.0
Mnemonic: CCAP0L Address: EAh
PCA Module 1 Compare/Capture Low Register
Bit:
7
6
5
4
3
2
1
0
CCAP1L.7 CCAP1L.6 CCAP1L.5 CCAP1L.4 CCAP1L.3 CCAP1L.2 CCAP1L.1 CCAP1L.0
Mnemonic: CCAP1L Address: EBh
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