33.7.11 PIO Interrupt Status Register

PIO_ISR is reset at 0x00000000. However, the first read of the register may read a different value as input changes may have occurred.
Name: PIO_ISRx
Offset: 0x2C + x*0x40 [x=0..3]
Reset: 0x00000000
Property: Read-only

Bit 3130292827262524 
 P31P30P29P28P27P26P25P24 
Access RRRRRRRR 
Reset 00000000 
Bit 2322212019181716 
 P23P22P21P20P19P18P17P16 
Access RRRRRRRR 
Reset 00000000 
Bit 15141312111098 
 P15P14P13P12P11P10P9P8 
Access RRRRRRRR 
Reset 00000000 
Bit 76543210 
 P7P6P5P4P3P2P1P0 
Access RRRRRRRR 
Reset 00000000 

Bits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 – Px Input Change Interrupt Status

ValueDescription
0 No Input Change has been detected on the I/O line of the I/O group x since PIO_ISRx was last read or since reset.
1 At least one Input Change has been detected on the I/O line of the I/O group since PIO_ISRx was last read or since reset.