UPSD33XX Datasheet, PDF (58/231 Pages) STMicroelectronics – Fast 8032 MCU with Programmable Logic

uPSD33xx
Table 26. P3: I/O Port 3 Register (SFR B0h, reset value FFh)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
P3.7
P3.6
P3.5
P3.4
P3.3
P3.2
P3.1
P3.0
Details
Bit
Symbol
R/W
Function⁽¹⁾
7
P3.7
R,W
Port pin 3.7
6
P3.6
R,W
Port pin 3.6
5
P3.5
R,W
Port pin 3.5
4
P3.4
R,W
Port pin 3.4
3
P3.3
R,W
Port pin 3.3
2
P3.2
R,W
Port pin 3.2
1
P3.1
R,W
Port pin 3.1
0
P3.0
R,W
Port pin 3.0
Note: 1. Write '1' or '0' for pin output. Read for pin input, but prior to READ, this bit must have been set to '1' by firmware or by a reset event.
Table 27. P4: I/O Port 4 Register (SFR C0h, reset value FFh)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
P4.7
P4.6
P4.5
P4.4
P4.3
P4.2
P4.1
P4.0
Details
Bit
Symbol
R/W
Function⁽¹⁾
7
P4.7
R,W
Port pin 4.7
6
P4.6
R,W
Port pin 4.6
5
P4.5
R,W
Port pin 4.5
4
P4.4
R,W
Port pin 4.4
3
P4.3
R,W
Port pin 4.3
2
P4.2
R,W
Port pin 4.2
1
P4.1
R,W
Port pin 4.1
0
P4.0
R,W
Port pin 4.0
Note: 1. Write '1' or '0' for pin output. Read for pin input, but prior to READ, this bit must have been set to '1' by firmware or by a reset event.
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