WG82574IT S LBAC Intel, WG82574IT S LBAC Datasheet - Page 61

• 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

Interconnects—82574 GbE Controller
Figure 8.
3.5.1
3.5.2
NC-SI Interface
Interface Specification
The 82574L NC-SI interface meets the RMII Specification, Rev. 1.2 as a PHY-side
device.
The following NC-SI capabilities are not supported by the 82574:
Electrical Characteristics
The 82574L complies with the electrical characteristics defined in the RMII
specification. However, the 82574 is not 5 V dc tolerance and requires that signals
conform to 3.3 V dc signaling.
The 82574L dynamically drives its NC-SI output signals (NC-SI_DV and NC-SI_RX) as
required by the sideband protocol:
• Collision Detection - The interface supports only full-duplex operation.
• MDIO - MDIO/MDC management traffic is not passed on NC-SI.
• Magic packets - Magic packets are not detected at the 82574 NC-SI receive end.
• Flow-control - The 82574L doesn't support flow control on this interface.
• At power up, the 82574 floats the NC-SI outputs.
• The 82574L drives the NC-SI outputs as configured by the MC by the Select
Package and Deselect Package commands.
MC
MAC - MEDIA ACCESS CONTROL
LLC - LOGICAL LINK CONTROL
RECONCILIATION
NC-SI
82574L
MAC - MEDIA ACCESS CONTROL
RECONCILIATION
MDI
GMII
MAC - MEDIA ACCESS CONTROL
RECONCILIATION
PCS
PMA
PMD
MEDIUM
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