WG82574IT S LBAC Intel, WG82574IT S LBAC Datasheet - Page 5

• Manufacturer Part Number: WG82574IT S LBAC
• Description: CONTROLLER, ENET, INTEL 82574IT, 64PQFN
• Manufacturer: Intel

Specifications of WG82574IT S LBAC

• Ethernet Type: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: -40°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

Datasheet—82574 GbE Controller
8.0
7.2
7.3
7.4
7.5
7.6
7.7
System Manageability............................................................................................ 198
8.1
8.2
8.3
8.4
8.5
8.6
7.1.5
7.1.6
7.1.7
7.1.8
7.1.9
7.1.10 Receive Packet Checksum Offloading ...................................................... 147
7.1.11 Multiple Receive Queues and Receive-Side Scaling (RSS)........................... 149
Packet Transmission ........................................................................................ 155
7.2.1
7.2.2
7.2.3
7.2.4
7.2.5
7.2.6
7.2.7
7.2.8
7.2.9
7.2.10 Transmit Descriptor Formats.................................................................. 162
7.2.11 Extended Data Descriptor Format ........................................................... 170
TCP Segmentation ........................................................................................... 174
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
Interrupts ...................................................................................................... 180
7.4.1
7.4.2
7.4.3
7.4.4
7.4.5
802.1q VLAN Support ...................................................................................... 186
7.5.1
7.5.2
7.5.3
LED's............................................................................................................. 188
Time SYNC (IEEE1588 and 802.1AS) ................................................................. 189
7.7.1
7.7.2
7.7.3
7.7.4
Scope ............................................................................................................ 198
Pass-Through (PT) Functionality ........................................................................ 198
Components of a Sideband Interface.................................................................. 199
SMBus Pass-Through Interface.......................................................................... 199
8.4.1
8.4.2
8.4.3
8.4.4
8.4.5
Receive TCO Flow............................................................................................ 215
Transmit TCO Flow .......................................................................................... 215
Packet Split Receive Descriptor .............................................................. 138
Receive Descriptor Fetching ................................................................... 141
Receive Descriptor Write Back................................................................ 141
Receive Descriptor Queue Structure........................................................ 142
Receive Interrupts................................................................................ 144
Transmit Functionality........................................................................... 155
Transmission Flow Using Simplified Legacy Descriptors.............................. 156
Transmission Process Flow Using Extended Descriptors.............................. 156
Transmit Descriptor Ring Structure ......................................................... 157
Multiple Transmit Queues ...................................................................... 159
Overview of On-Chip Transmit Modes...................................................... 159
Pipelined Tx Data Read Requests ............................................................ 160
Transmit Interrupts .............................................................................. 161
Transmit Data Storage .......................................................................... 161
TCP Segmentation Performance Advantages ............................................ 174
Ethernet Packet Format......................................................................... 174
TCP Segmentation Data Descriptors........................................................ 175
TCP Segmentation Source Data .............................................................. 176
Hardware Performed Updating for Each Frame ......................................... 176
TCP Segmentation Use of Multiple Data Descriptors .................................. 177
Legacy and MSI Interrupt Modes ............................................................ 180
MSI-X Mode......................................................................................... 180
Registers............................................................................................. 181
Interrupt Moderation ............................................................................ 183
Clearing Interrupt Causes...................................................................... 185
802.1q VLAN Packet Format .................................................................. 186
Transmitting and Receiving 802.1q Packets ............................................. 187
802.1q VLAN Packet Filtering ................................................................. 187
Overview ............................................................................................ 189
Flow and Hardware/Software Responsibilities ........................................... 190
Hardware Time Sync Elements ............................................................... 192
PTP Packet Structure ............................................................................ 195
General............................................................................................... 200
Pass-Through Capabilities...................................................................... 200
Manageability Receive Filtering............................................................... 200
SMBus Transactions.............................................................................. 208
SMBus Notification Methods ................................................................... 212
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