WG82574IT S LBAB Intel, WG82574IT S LBAB Datasheet - Page 263
WG82574IT S LBAB
Manufacturer Part Number
WG82574IT S LBAB
Description
Manufacturer
Intel
Datasheet
1.WG82574IT_S_LBAB.pdf
(472 pages)
Specifications of WG82574IT S LBAB
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / RoHS Status
Compliant
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Programing Interface—82574 GbE Controller
9.1.6.1.6
.
PCIe Device Status, Offset 0xEA, (RO)
This register provides information about PCIe device specific parameters.
7:5
8
9
10
11
14:12
15
0
1
2
3
4
5
15:6
Bits
Bits
RW1C
RW1C
RW1C
RW1C
RO
RO
RO
RW
RW
RW
RO
RW
RW
RO
R/W
R/W
0b
0b
0b
0b
0b
0b
0x00
000b (128
Bytes)
0b
0b
0b
1b
010b
0b
Default
Default
Correctable Detected
Indicates status of correctable error detection.
Non-Fatal Error Detected
Indicates status of non-fatal error detection.
Fatal Error Detected
Indicates status of fatal error detection.
Unsupported Request Detected
Indicates that the 82574 received an unsupported request.
Aux Power Detected
If Aux power is detected, this field is set to 1b. It is a strapping signal from
the periphery. Reset on Internal Power On Reset and PCIe Power Good only.
Transaction Pending
Indicates whether the 82574 has any transactions pending. (Transactions
include completions for any outstanding non-posted request for all used traffic
classes.).
Reserved
Max Payload Size
This field sets maximum TLP payload size for the device functions. As a
receiver, the device must handle TLPs as large as the set value. As a
transmitter, the device must not generate TLPs exceeding the set value.
The Maximum Payload Size supported in the Device Capabilities register
indicates permissible values that can be programmed.
Extended Tag field Enable
Not implemented in the 82574.
Phantom Functions Enable
Not implemented in the 82574.
Auxiliary Power PM Enable
When set, enables the device to draw AUX power independent of PME AUX
power. In the 82574, this bit is hardwired to 0b.
Enable No Snoop
Snoop is gated by NONSNOOP bits in the GCR register in the CSR space.
Max Read Request Size
This field sets maximum read request size for the device as a requester. The
default value is 010b (512 bytes).
This maximum read request configuration value should not be altered on the
fly.
Reserved.
Description
Description
263
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