DescriptionResetTypeNameBit/Field
Fast Link Down Modes
The Fast Link Down function is an OR of the following five options. The
application can enable combinations of these conditions.
Bit 4: Drop the link due to descrambler sync loss. If this bit is enabled,
the link is dropped when the receiver loses synchronization of the
transmitter.
Bit 3: Drop the link based on RX Error count of the MII interface. When
a predefined number of 32 RX Error occurrences in a 10μs interval is
reached, the link is dropped.
Bit 2: Drop the link based on MLT3 Errors count (Violation of the MLT3
coding in the DSP output). When a predefined number of 20 MLT3 Error
occurrences in a 10μs interval is reached, the link is dropped.
Bit 1: Drop the link based on Low SNR Threshold. When a predefined
number of 20 Threshold crossing occurrences in a 10μs interval is
reached, the link is dropped.
Bit 0: Drop the link based on Signal/Energy loss indication – When the
Energy detector indicates Energy Loss, the link is dropped. Typical
reaction time is 10μs.
0x0RWFLDWNM4:0
June 18, 20141612
Texas Instruments-Production Data
Ethernet Controller
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