WG82574L S LBA8 Intel, WG82574L S LBA8 Datasheet - Page 108
WG82574L S LBA8
Manufacturer Part Number
WG82574L S LBA8
Description
Manufacturer
Intel
Datasheet
1.WG82574L_S_LBA8.pdf
(472 pages)
Specifications of WG82574L S LBA8
Operating Supply Voltage (typ)
3.3V
Operating Temp Range
0C to 85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
64
Lead Free Status / RoHS Status
Compliant
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6.2.1.18
108
PCIe Init Configuration 3 Word (Word 0x1A)
15
14
13
12
11:10
9
8
7
6
5
4
3:2
1
0
Bit
Master_Enable
Scram_dis
Ack_Nak_Sch
Cache_Lsize
PCIE_Cap
IO_Sup
Packet_Size
Reserved
Reserved
Reserved
Reserved
Act_Stat_PM_Sup
Slot_Clock_Cfg
Loop back polarity
inversion
Name
Default
0b
0b
0b
0b
01b
1b
1b
0b
0b
0b
0b
11b
1b
0b
When set to 1b, this bit enables the PHY to be a master (upstream
component/cross link functionality).
Scrambling Disable
When set to 1b, this bit disables the PCIe LFSR scrambling.
ACK/NAK Scheme
0b = Scheduled for transmission following any TLP.
1b = Scheduled for transmission according to time outs specified in
the PCIe specification.
Cache Line Size
0b = 64 bytes.
1b = 128 bytes.
Note: The value loaded must be equal to the actual cache line size
used by the platform, as configured by system software.
PCIe Capability Version
I/O Support (Effect I/O BAR Request)
0b = I/O is not supported.
1b = I/O is supported.
Default Packet Size
0b = 128 bytes.
1b = 256 bytes.
Reserved
Reserved
Reserved
Reserved
Determines support for Active State Link Power Management
(ASLPM). Loaded into the PCIe Active State Link PM Support register.
When set, the 82574 uses the PCIe reference clock supplied on the
connector (for add-in solutions).
Check Polarity Inversion in Loop-Back Master Entry
During normal operation polarity is adjusted during link up. When
this bit is set, the receiver re-checks the polarity of Rx-data and then
inverts it accordingly, when entering a near-end loopback. When
cleared, polarity is not re-checked after link up.
82574 GbE Controller—Non-Volatile Memory (NVM) Map
Description
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