Max_Lat, Min_Gnt, Interrupt Pin, And Interrupt Line Register; Retry Timeout/Trdy Timeout Register - Intel IXP45X Developer's Manual

®
PCI Controller—Intel IXP45X and Intel
Register
Bits Name
31:1
SDeviceID Subsytem Device ID
6
15:0 SVendorID Subsystem Vendor ID
10.5.2.12

Max_Lat, Min_gnt, Interrupt Pin, and Interrupt Line Register

Register Name:
Block
0xC00000
Base Address:
Miscellaneous register provides Max Latency, Min Grant, Interrupt
Pin and Interrupt Line parameters as specified in the PCI 2.2 Local
Register Description:
Bus Specification.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
MaxLat
Register
Bits Name
Indicates how often this device needs access to the bus, in units of
31:2
MaxLat 0.25us. Used by configuration software to set the value of the Latency
4
Timer.
Indicates the time interval required for a burst operation, in units of
23:1
MinGnt 0.25us. Used by configuration software to set the value of the Latency
6
Timer.
Indicates which interrupt pin this device connects to. Set to connect to
15:8 IntPin
INT_A#.
7:0 IntLine Indicates interrupt line routing information.
10.5.2.13

Retry Timeout/trdy Timeout Register

Register Name:
Block
0xC00000
Base Address:
Specifies values for the Retry and TRDY timeout timers.
Register Description:
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
Reserved
August 2006
Order Number: 306262-004US
®
IXP46X Product Line of Network Processors
pci_sidsvid
Description
Offset Address
MinGnt
pci_latent
Description
Offset Address
®
Intel IXP45X and Intel
Reset
Value
0x0000
0x0000
pci_latent
0x3c
Reset Value
8 7
IntPin
Reset
Value
0x00
pci_rtotto
0x40
Reset Value
8 7
RetryTO
®
IXP46X Product Line of Network Processors
PCI AHB
Access Access
RO RW
RO RW
0x00000100
Access: (See below.)
6 5 4 3 2 1 0
IntLine
PCI AHB
Access Access
0x00 RO RW
0x00 RO RW
0x01 RO RW
RW RW
0x00008080
Access: (See below.)
6 5 4 3 2 1 0
TRDYTO
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