WG82574L S LBA9 Intel, WG82574L S LBA9 Datasheet - Page 30

• Manufacturer Part Number: WG82574L S LBA9
• Description: CONTROLLER, ENET, INTEL 82574L, 64PQFN
• Manufacturer: Intel

Specifications of WG82574L S LBA9

• Ethernet Type: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: 0°C To +85°C
• Digital Ic Case Style: QFN
• No. Of Pins: 64
• Package / Case: QFN
• Interface Type: I2C, JTAG, PCI, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.1.1.1
3.1.1.2
3.1.2
3.1.3
3.1.3.1
Table 16.
30
Physical Interface Properties
Advanced Extensions
PCIe defines a set of optional features to enhance platform capabilities for specific
usage modes. The 82574L supports the following optional features:
General Functionality
Transaction Layer
The upper layer of the PCIe architecture is the transaction layer. The transaction layer
connects to the 82574’s core using an implementation-specific protocol. Through this
core-to-transaction-layer protocol, the application-specific parts of the 82574 interact
with the PCIe subsystem and transmit and receive requests to or from the remote PCIe
agent, respectively.
Transaction Types Received by the Transaction Layer
Transaction Types at the Rx Transaction Layer
Configuration Read
Request
Configuration Write
Request
Memory Read
Request
• Point to point interconnect
• Signaling technology:
• Serial frequency of operation: 2.5 GHz.
• Interface width of one lane per direction
• DFT and DFM support for high volume manufacturing
• Extended error reporting – messaging support to communicate multiple types/
• Serial number
• Native/legacy:
• Locked transactions:
• End to End CRC (ECRC):
Transaction Type
severity of errors
— Full-duplex; no arbitration
— Low voltage differential
— Embedded clock signaling using 8b/10b encoding scheme
— The PCIe capability register states the device/port type.
— The 82574L is a native device by default.
— The 82574L does not support locked requests as a target or master.
— Not supported by the 82574
NPH
NPH +
NPD
NPH
FC Type
CPLH + CPLD
CPLH
CPLH + CPLD
Reaction
Tx Later
Data From Original Packet
Requester ID, TAG, Attribute
Requester ID, TAG, Attribute
Requester ID, TAG, Attribute
Hardware Should Keep
82574 GbE Controller—Interconnects
Configuration space
Configuration space
CSR
For Client