WG82574IT S LBAB Intel, WG82574IT S LBAB Datasheet - Page 59
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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Interconnects—82574 GbE Controller
Figure 8.
3.5.1
3.5.2
NC-SI Interface
Interface Specification
The 82574 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 82574 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 82574 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 82574 doesn't support flow control on this interface.
• At power up, the 82574 floats the NC-SI outputs.
• The 82574 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
59
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