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C2K User’s Guide 5-30
Resources
GPIO Interrupt Status
The GPIO Interrupt Status may be configured with trigger level or edge-sensitive interrupts. The
input polarity is used in conjunction with the interrupt type to determine how to handle input
interrupts. When configured as an active high input, edge interrupts will be generated on the ris-
ing edge and level interrupts will be active when the input is high. When configured as an active
low input, edge interrupts will be generated on the falling edge and level interrupts will be active
when the input is low.
3 GPIO3_IO_DATA - GPIO3 I/O Data Read—controls the GPIO output states, as
well as reports the input states for the GPIO Polarity Register
for the GPIO3 line
0 = inactive state
1 = active state
2 GPIO2_IO_DATA - GPIO2 I/O Data Read—controls the GPIO output states, as
well as reports the input states for the GPIO Polarity Register
for the GPIO2 line
0 = inactive state
1 = active state
1 GPIO1_IO_DATA - GPIO1 I/O Data Read—controls the GPIO output states, as
well as reports the input states for the GPIO Polarity Register
for the GPIO1 line
0 = inactive state
1 = active state
0 GPIO0_IO_DATA - GPIO0 I/O Data Read—controls the GPIO output states, as
well as reports the input states for the GPIO Polarity Register
for the GPIO0 line
0 = inactive state
1 = active state
Address offset: 0x44
Access: WC*
* When configured as edge-sensitive
interrupts, the corresponding bits are
clear-on-write of “1.” Otherwise, this
register is read-only.
Bits Field Default Description
15 GPIO15_INT_STAT - GPIO15 Interrupt Status—provides the GPIO interrupt status
for the GPIO15 line
0 = interrupt not active
1 = interrupt active
14 GPIO14_INT_STAT - GPIO14 Interrupt Status—provides the GPIO interrupt status
for the GPIO14 line
0 = interrupt not active
1 = interrupt active
13 GPIO13_INT_STAT - GPIO13 Interrupt Status—provides the GPIO interrupt status
for the GPIO13 line
0 = interrupt not active
1 = interrupt active
Bits Field Default Description
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