Digital I/O Registers
376
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
P2IN
or PAIN_H
Port 2 Input
Read only
Byte
undefined
03h
P2OUT
or PAOUT_H
Port 2 Output
Read/write
Byte
undefined
05h
P2DIR
or PADIR_H
Port 2 Direction
Read/write
Byte
00h
07h
P2REN
or PAREN_H
Port 2 Resistor Enable
Read/write
Byte
00h
0Bh
P2SEL0
or PASEL0_H
Port 2 Select 0
Read/write
Byte
00h
0Dh
P2SEL1
or PASEL1_H
Port 2 Select 1
Read/write
Byte
00h
17h
P2SELC
or PASELC_L
Port 2 Complement Selection
Read/write
Byte
00h
19h
P2IES
or PAIES_H
Port 2 Interrupt Edge Select
Read/write
Byte
undefined
1Bh
P2IE
or PAIE_H
Port 2 Interrupt Enable
Read/write
Byte
00h
1Dh
P2IFG
or PAIFG_H
Port 2 Interrupt Flag
Read/write
Byte
00h
00h
P3IN
or PBIN_L
Port 3 Input
Read only
Byte
undefined
02h
P3OUT
or PBOUT_L
Port 3 Output
Read/write
Byte
undefined
04h
P3DIR
or PBDIR_L
Port 3 Direction
Read/write
Byte
00h
06h
P3REN
or PBREN_L
Port 3 Resistor Enable
Read/write
Byte
00h
0Ah
P3SEL0
or PBSEL0_L
Port 3 Select 0
Read/write
Byte
00h
0Ch
P3SEL1
or PBSEL1_L
Port 3 Select 1
Read/write
Byte
00h
16h
P3SELC
or PBSELC_L
Port 3 Complement Selection
Read/write
Byte
00h
18h
P3IES
or PBIES_L
Port 3 Interrupt Edge Select
Read/write
Byte
undefined
1Ah
P3IE
or PBIE_L
Port 3 Interrupt Enable
Read/write
Byte
00h
1Ch
P3IFG
or PBIFG_L
Port 3 Interrupt Flag
Read/write
Byte
00h