Fujitsu MB86R02 Jade-D Hardware Manual page 136

MB86R02 'Jade-D' Hardware Manual V1.64
31-24 (Reserved)
23-0 GPIO_INT_enable
(GPIO interrupt
enable)
7-12
Reserved
Writes are ignored. Reads will return a '0' at all times.
Set whether the interrupt of each bit occurs according to the value which the external pins
GPIO23-0 sample with the internal clock.
0 Interrupt doesn't occur.
1 Occur interrupt based on the following register setting.