VIPER
Detailed hardware description
Interrupt assignments
Internal interrupts
For details on the PXA255 interrupt controller and internal peripheral interrupts please
see the Intel PXA255 developer’s manual on the Development Kit CD.
External interrupts
The following table lists the PXA255 signal pins used for generating external interrupts.
PXA255 Pin
Peripheral
Active
GPIO0 Ethernet
GPIO1
PC/104 interrupt controller
See
GPIO2 USB
GPIO3 COM5
GPIO4 COM4
GPIO8
CompactFLASH RDY/nBSY
Ready =
, Busy =
GPIO14
FLASH (OS)
Ready =
, Busy =
GPIO32
CompactFLASH card detect
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