82551QM Datasheet, PDF (94/120 Pages) Intel Corporation – Fast Ethernet Multifunction PCI/CardBus Controller

82551QM — Networking Silicon
Table 62. Register 29: Hardware Integrity Control
Bit(s)
Name
Description
12:11
10:9
Reserved
LowZ/HighZ
8:0
Distance
These bits are reserved and should be set to 0b.
This field of bits indicates either a short (Low Z) or
open (high Z) on the line. It is valid 100 µs after the
Test Execute bit (bit 13 of this register) is set.
1 = Short (low Z)
0 = Open (high Z)
These bits define the distance to the short or open in
the cable and are valid 100 µs after the Test Execute
bit (bit 13 of this register) is set. The distance is
defined in granularities of 80 cm (35 inches).
Default
00
R/W
RO
RO
RO
88
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