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Intel
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
September 2006 DM
Order Number: 252480-006US 259
PCI Controller—Intel
®
IXP42X product line and IXC1100 control plane processors
6.14.2.1 PCI Controller Non-pre-fetch Address Register
(PCI_NP_AD)
6.14.2.2 PCI Controller Non-pre-fetch Command/Byte Enables Register
(PCI_NP_CBE)
Register Name: PCI_NP_AD
Hex Offset Address: 0xC0000000 Reset Hex Value: 0x00000000
Register
Description:
PCI non-pre-fetch access address register. Provides address for CSR-initiated non-pre-fetch PCI
accesses.
Access: See below.
31 16 15 0
NP_ADDRESS NP_ADDRESS
Register
PCI_NP_AD
Bits Name Description
Reset
Value
PCI Access AHB Access
31:0 np_address
Address of the non-pre-fetch PCI cycle. The format of
the address depends on the PCI command type used.
0x00000000 RO RW
Register Name: PCI_NP_CBE
Hex Offset Address:
0xC0000004 Reset Hex Value: 0x00000000
Register
Description:
PCI non-pre-fetch access command/byte enables register. Provides PCI command and data byte enables
for CSR-initiated non-pre-fetch PCI accesses
Access: See below.
31 87 43 0
(Reserved) NP_BE NP_CMD
Register
PCI_NP_CBE
Bits Name Description
Reset
Value
PCI Access AHB Access
31:8 (Reserved) – Read as 0 0x000000 RO RW
7:4 NP_BE
Byte enables driven onto the C/BE[3:0]# lines of the
PCI bus during the data phase of the non-pre-fetch
PCI access.
0x0 RO RW
3:0 NP_CMD
PCI command driven onto the C/BE[3:0]# lines of the
PCI bus during the address phase of the non-pre-
fetch PCI access.
0x0 RO RW