
24. Programmable I/O Ports
Figure 24.10
PS9 Register, PS10 Register
b7 b6 b5 b4
b1
b2
b3
Symbol
PS9
Address
03A1h
After Reset
00h
b0
Function
Bit Symbol
Bit Name
RW
PS9_5
PS9_7
Port P15_3
output function select bit
Port P15_7
output function select bit
RW
PS9_4
RW
PS9_3
Port P15_5
output function select bit
Port P15_6
output function select bit
PS9_6
Function Select Register A9 (1)
Port P15_4
output function select bit
Port P15_1
output function select bit
PS9_1
RW
Port P15_2
output function select bit
RW
PS9_2
0: I/O port
1: Selected by the PSL9_0 bit
Port P15_0
output function select bit
PS9_0
RW
0: I/O port
1: Selected by the PSL9_1 bit
0: I/O port
1: Selected by the PSL9_2 bit
0: I/O port
1: Selected by the PSL9_3 bit
0: I/O port
1: Selected by the PSL9_4 bit
0: I/O port
1: Selected by the PSL9_5 bit
0: I/O port
1: Selected by the PSL9_6 bit
0: I/O port
1: Selected by the PSL9_7 bit
b7 b6 b5 b4
b1
b2
b3
Symbol
PS10
Address
03F5h
After Reset
00h
b0
Function
Bit Symbol
Bit Name
RW
PS10_5
PS10_7
Port P1_3
output function select bit
Port P1_7
output function select bit
RW
PS10_4
RW
PS10_3
Port P1_5
output function select bit
Port P1_6
output function select bit
PS10_6
Function Select Register A10
Port P1_4
output function select bit
Port P1_1
output function select bit
PS10_1
RW
Port P1_2
output function select bit
RW
PS10_2
0: I/O port
1: Selected by the PSL10_0 bit
Port P1_0
output function select bit
PS10_0
RW
0: I/O port
1: Selected by the PSL10_1 bit
0: I/O port
1: Selected by the PSL10_2 bit
0: I/O port
1: Selected by the PSL10_3 bit
0: I/O port
1: Selected by the PSL10_4 bit
0: I/O port
1: Selected by the PSL10_5 bit
0: I/O port
1: Selected by the PSL10_6 bit
0: I/O port
1: Selected by the PSL10_7 bit
NOTE:
1. The PS9 register is provided in the 144-pin package only.