Register Descriptions; Exti Source Selection Register 0; Essr0 - Holtek HT32F12345 User Manual

32-Bit Arm ® Cortex ® -M3 MCU
HT32F12345

Register Descriptions

EXTI Source Selection Register 0

This register specifies the I/O selection of EXTI0 ~ EXTI7.
Offset: 0x000
Reset value: 0x0000_0000
31
Type/Reset RW 0 RW
23
Type/Reset RW 0 RW
15
Type/Reset RW 0 RW
7
Type/Reset RW 0 RW
Bits Field
[31:0] EXTInPIN[3:0]
Rev. 1.10
–

ESSR0

30 29 28
EXTI7PIN
0 RW 0 RW
22 21 20
EXTI5PIN
0 RW 0 RW
14 13 12
EXTI3PIN
0 RW 0 RW
6 5 4
EXTI1PIN
0 RW 0 RW
Descriptions
EXTIn Pin Selection (n = 0 ~ 7)
0000: PA Bit n is selected as EXTIn source signal
0001: PB Bit n is selected as EXTIn source signal
0010: PC Bit n is selected as EXTIn source signal
0011: PD Bit n is selected as EXTIn source signal
Others: Reserved
Note: Since not all GPIO pins are available in all products and package types,
refer to the pin assignment section for detailed pin information. The
EXTInPIN [3:0] field setting is invalid when the corresponding pin is not
available.
162 of 590
27 26
EXTI6PIN
0 RW 0 RW 0 RW
19 18
EXTI4PIN
0 RW 0 RW 0 RW
11 10
EXTI2PIN
0 RW 0 RW 0 RW
3 2
EXTI0PIN
0 RW 0 RW 0 RW
25 24
0 RW 0
17 16
0 RW 0
9 8
0 RW 0
1 0
0 RW 0
November 28, 2018