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Software Developer’s Manual 277
Register Descriptions
13.4.7.1.18 PHY Receive Error Counter
PREC (21d; R)
NOTE: The counter stops at FFFFh and does not roll over.
PHY Channel Quality Register (82541xx and 82547GI/EI Only)
PCHAN (21d; R)
13.4.7.1.19 SPEED_TEN_LED and LINK_ACT_LED Control (82541xx and 82547GI/EI Only)
(23d; R/W)
Table 13-41. PHY Receive Error Counter Bit Description
Field Bit(s) Description Mode HW Rst SW RST
Receive Error Count 15:0 Error Count. RO,SC 0000h 0000h
Table 13-42. PHY Channel Quality Register Bit Description
Field Bit(s) Description Mode HW Rst SW Rst
MSE D 3:0
The converged mean square error for
Channel D.
RO 0b 0b
MSE C 7:4
The converged mean square error for
Channel C.
RO 0b 0b
MSE B 11:8
The converged mean square error for
Channel B.
RO 0b 0b
MSE A 15:12
The converged mean square error for
Channel A. This field is only meaningful
in gigabit, or in 100BASE-TX if this is
the receive pair.
Use of this field is complex and needs
interpretation based on the chosen
threshold value.
RO 0b 0b
Table 13-43. SPEED_TEN_LED and LINK_ACT_LED Bit Description
Field Bit(s) Description Mode HW Rst SW Rst
LED Source Select 3:0
MUX the designated input to
SPEED_TEN_LED.
R/W 0000b 0000b
LED Blink Disable 4
Disable the SPEED_TEN_LED Blink
Logic.
0b = Enable logic.
1b = Disable logic.
R/W 0b 0b