Digital I/O Registers
379
SLAU367P – October 2012 – Revised April 2020
Copyright © 2012–2020, Texas Instruments Incorporated
Digital I/O
Table 12-3. Digital I/O Registers (continued)
Offset
Acronym
Register Name
Type
Access
Reset
Section
01h
P8IN
or PDIN_H
Port 8 Input
Read only
Byte
undefined
03h
P8OUT
or PDOUT_H
Port 8 Output
Read/write
Byte
undefined
05h
P8DIR
or PDDIR_H
Port 8 Direction
Read/write
Byte
00h
07h
P8REN
or PDREN_H
Port 8 Resistor Enable
Read/write
Byte
00h
0Bh
P8SEL0
or PDSEL0_H
Port 8 Select 0
Read/write
Byte
00h
0Dh
P8SEL1
or PDSEL1_H
Port 8 Select 1
Read/write
Byte
00h
17h
P8SELC
or PDSELC_L
Port 8 Complement Selection
Read/write
Byte
00h
19h
P8IES
or PDIES_H
Port 8 Interrupt Edge Select
Read/write
Byte
undefined
1Bh
P8IE
or PDIE_H
Port 8 Interrupt Enable
Read/write
Byte
00h
1Dh
P8IFG
or PDIFG_H
Port 8 Interrupt Flag
Read/write
Byte
00h
00h
P9IN
or PEIN_L
Port 9 Input
Read only
Byte
undefined
02h
P9OUT
or PEOUT_L
Port 9 Output
Read/write
Byte
undefined
04h
P9DIR
or PEDIR_L
Port 9 Direction
Read/write
Byte
00h
06h
P9REN
or PEREN_L
Port 9 Resistor Enable
Read/write
Byte
00h
0Ah
P9SEL0
or PESEL0_L
Port 9 Select 0
Read/write
Byte
00h
0Ch
P9SEL1
or PESEL1_L
Port 9 Select 1
Read/write
Byte
00h
16h
P9SELC
or PESELC_L
Port 9 Complement Selection
Read/write
Byte
00h
18h
P9IES
or PEIES_L
Port 9 Interrupt Edge Select
Read/write
Byte
undefined
1Ah
P9IE
or PEIE_L
Port 9 Interrupt Enable
Read/write
Byte
00h
1Ch
P9IFG
or PEIFG_L
Port 9 Interrupt Flag
Read/write
Byte
00h