DP83848-EP Datasheet, PDF (84/92 Pages) Texas Instruments – PHYTER MILITARY TEMPERATURE SINGLE PORT 10/100 MB/S ETHERNET PHYSICAL LAYER TRANSCEIVER

DP83848-EP
SLLSEC6D – SEPTEMBER 2012 – REVISED JUNE 2013
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Table 9-23. Energy Detect Control (EDCR), Address 0x1D (continued)
BIT
BIT NAME
11
ED_BURST_DIS
10
ED_PWR_STATE
9
ED_ERR_MET
8
ED_DATA_MET
7:4
ED_ERR_COUNT
3:0
ED_DATA_COUNT
DEFAULT
0, RW
0, RO
0, RO/COR
0, RO/COR
0001, RW
0001, RW
DESCRIPTION
Energy Detect Bust Disable:
Disable bursting of energy detect data pulses. By default, Energy
Detect (ED) transmits a burst of 4 ED data pulses each time the CD is
powered up. When bursting is disabled, only a single ED data pulse
will be send each time the CD is powered up.
Energy Detect Power State:
Indicates current Energy Detect Power state. When set, Energy
Detect is in the powered up state. When cleared, Energy Detect is in
the powered down state. This bit is invalid when Energy Detect is not
enabled.
Energy Detect Error Threshold Met:
No action is automatically taken upon receipt of error events. This bit
is informational only and would be cleared on a read.
Energy Detect Data Threshold Met:
The number of data events that occurred met or surpassed the
Energy Detect Data Threshold. This bit is cleared on a read.
Energy Detect Error Threshold:
Threshold to determine the number of energy detect error events that
should cause the device to take action. Intended to allow averaging of
noise that may be on the line. Counter will reset after approximately 2
seconds without any energy detect data events.
Energy Detect Data Threshold:
Threshold to determine the number of energy detect events that
should cause the device to take actions. Intended to allow averaging
of noise that may be on the line. Counter will reset after approximately
2 seconds without any energy detect data events.
84
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