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Intel
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
September 2006 DM
Order Number: 252480-006US 403
Interrupt Controller—Intel
®
IXP42X product line and IXC1100 control plane processors
Int21 21 GPIO GPIO[4]
Int22 22 GPIO GPIO[5]
Int23 23 GPIO GPIO[6]
Int24 24 GPIO GPIO[7]
Int25 25 GPIO GPIO[8]
Int26 26 GPIO GPIO[9]
Int27 27 GPIO GPIO[10]
Int28 28 GPIO GPIO[11]
Int29 29 GPIO GPIO[12]
Int30 30 Expansion Bus SW Interrupt 0
Int31 31 Expansion Bus SW Interrupt 1
1. The priorities of Interrupts 0 through 7 are programmable; the priorities of Interrupts 8 through
31 are fixed; priority 0 is the highest priority and 31 is the lowest.
Register INTR_ST (Sheet 2 of 2)
Interrup
t Bit
Default
Priority
1
Source Description