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Intel
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
September 2006 DM
Order Number: 252480-006US 319
Expansion Bus Controller—Intel
®
IXP42X product line and IXC1100 control plane processors
8.9 Register Descriptions
8.9.1 Timing and Control Registers for Chip Select 0
T
Note: The undefined (X) in the reset value is dependent upon values supplied to the chip on
the Expansion Bus address at the de-assertion of RESET_IN_N. Please refer to Section
8.9.9, “Configuration Register 0” on page 322 for additional details.
8.9.2 Timing and Control Registers for Chip Select 1
Table 122. Expansion Bus Register Overview
Address R/W Name Description
0xC4000000 R/W EXP_TIMING_CS0 Timing and Control Register for Chip Select 0
0xC4000004 R/W EXP_TIMING_CS1 Timing and Control Register for Chip Select 1
0xC4000008 R/W EXP_TIMING_CS2 Timing and Control Register for Chip Select 2
0xC400000C R/W EXP_TIMING_CS3 Timing and Control Register for Chip Select 3
0xC4000010 R/W EXP_TIMING_CS4 Timing and Control Register for Chip Select 4
0xC4000014 R/W EXP_TIMING_CS5 Timing and Control Register for Chip Select 5
0xC4000018 R/W EXP_TIMING_CS6 Timing and Control Register for Chip Select 6
0xC400001C R/W EXP_TIMING_CS7 Timing and Control Register for Chip Select 7
0xC4000020 R/W EXP_CNFG0 General Purpose Configuration Register 0
0xC4000024 R/W EXP_CNFG1 General Purpose Configuration Register 1
0xC4000028 - - Reserved
Register Name: EXP_TIMING_CS0
Hex Offset Address: 0XC4000000 Reset Hex Value: 0xBFFF3C4x
Register
Description:
Timing and Control Registers
Access: Read/Write
31302928272625 22212019 16151413 109 6543210
CSx_EN
(Rsvd)
T1 T2 T3 T4 T5
CYCLE_
TYPE
CNFG[3:0] (Rsvd)
BYTE_RD16
HRDY_POL
MUX_EN
SPLT_EN
(Rsvd)
WR_EN
BYTE_EN
Register Name: EXP_TIMING_CS1
Hex Offset Address: 0XC4000004 Reset Hex Value: 0x00000000
Register
Description:
Timing and Control Registers
Access: Read/Write
31302928272625 22212019 16151413 109 6543210
CSx_EN
(Rsvd)
T1 T2 T3 T4 T5
CYCLE_
TYPE
CNFG[3:0] (Rsvd)
BYTE_RD16
HRDY_POL
MUX_EN
SPLT_EN
(Rsvd)
WR_EN
BYTE_EN