82801FB Datasheet, PDF (478/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

SATA Controller Registers (D31:F2)
12.1.38
.
STTT2—SATA Indexed Registers Index 74h
(SATA TX Termination Test Register 2)
Address Offset: Index 74h - 77h
Default Value: 00000000h
Attribute:
Size:
R/W
32 bits
Bit
Description
31:18
17
Reserved.
Port 3 TX Termination Test Enable — R/W:
0 = Port 3 TX termination port testing is disabled.
1 = Setting this bit will enable testing of Port 3 TX termination.
NOTE: This bit only to be used for system board testing.
Port 2 TX Termination Test Enable — R/W:
0 = Port 2TX termination port testing is disabled.
16 _{1 = Setting this bit will enable testing of Port 2TX termination.}
NOTE: This bit only to be used for system board testing.
15:0 Reserved.
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Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet