Z51F0410 Datasheet, PDF (56/184 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F0410
Product Specification
P0[7:0] I/O Data
P0IO (P0 Direction Register) : 98H
7
P07IO
R/W
6
P06IO
R/W
5
P05IO
R/W
4
P04IO
R/W
3
P03IO
R/W
P0IO[7:0]
P0 data I/O direction.
0
Input
1
Output
2
P02IO
R/W
P0PU (P0 Pull-up Resistor Selection Register) : 89H
7
P07PU
R/W
6
P06PU
R/W
5
P05PU
R/W
4
P04PU
R/W
3
P03PU
R/W
2
P02PU
R/W
P0PU[7:0]
Configure pull-up resistor of P0 port
0
disable
1
enable
P0OD (P0 Open-drain Selection Register) : A1H
7
P07OD
R/W
6
P06OD
R/W
5
P05OD
R/W
4
P04OD
R/W
3
P03OD
R/W
2
P02OD
R/W
P0OD[7:0]
Configure open-drain of P0 port
0
disable
1
enable
P0DB (P0 Debounce Enable Register) : C0H
7
P07DB
R/W
6
P06DB
R/W
5
P05DB
R/W
4
P04DB
R/W
3
P03DB
R/W
2
P02DB
R/W
P0DB[7:0]
Configure debounce of P0 port
0
disable
1
enable
P0PC (P0 Pin Change Interrupt Enable Register) : C1H
7
P07PC
R/W
6
P06PC
R/W
5
P05PC
R/W
4
P04PC
R/W
3
P03PC
R/W
2
P02PC
R/W
PS029502-0212
PRELIMINARY
Initial value : 00H
1
P01IO
R/W
0
P00IO
R/W
Initial value : 00H
1
P01PU
R/W
0
P00PU
R/W
Initial value : 00H
1
P01OD
R/W
0
P00OD
R/W
Initial value : 00H
1
P01DB
R/W
0
P00DB
R/W
Initial value : 00H
1
P01PC
R/W
0
P00PC
R/W
Initial value : 00H
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