ISD91200 Series Technical Reference Manual
Release Date: Sep 16, 2019
- 144 -
Revision 2.4
GPIO Port [A/B] Interrupt Source Flag(Px _INTSRC)
Register
Offset
R/W
Description
Reset Value
PA_INTSRC
0x020 R/W
GPIO Port A Interrupt Source Flag
0x0000_0000
PB_INTSRC
0x060 R/W
GPIO Port B Interrupt Source Flag
0x0000_0000
Table 5-57 GPIO Interrupt Source Flag Register (Px_INTSRC)
15
14
13
12
11
10
9
8
INTSRC[15:8]
7
6
5
4
3
2
1
0
INTSRC[7:0]
Bits
Description
[31:16]
Reserved
Reserved.
[15:0]
INTSRC
Port [A/B] Interrupt Source Flag
Read :
1 = Indicates GPIOx[n] generated an interrupt.
0 = No interrupt from GPIOx[n].
Write :
1 = Clear the corresponding pending interrupt.
0 = No action.