IBM Intel Xeon E5504 46M1078 User Manual
Product codes
46M1078
Intel® Xeon® Processor 5500 Series Datasheet, Volume 2
71
Register Description
2.9.8
QPI_0_EP_SR
QPI_1_EP_SR
Intel QPI Physical Layer Electrical Parameter Select Register. This register enables the
equalization coefficient setting functionality of the QPI_[0,1]_EP_MCTR register when
QPI_[0,1]_EP_SR is set to 6.
equalization coefficient setting functionality of the QPI_[0,1]_EP_MCTR register when
QPI_[0,1]_EP_SR is set to 6.
2.9.9
QPI_0_EP_MCTR
QPI_1_EP_MCTR
Intel QPI Electrical Parameter Miscellaneous Control Register. This register holds
equalization coefficient parameters.
equalization coefficient parameters.
Device:
2
Function: 1, 5
Offset:
E0h
Access as a Dword
Bit
Type
Reset
Value
Description
23:16
RW
0
EPARAM_SEL. Select electrical parameter. Set to 6 to enable equalization
coefficient setting functionality of QPI_[0,1]_EP_MCTR register.
Device:
2
Function: 1, 5
Offset:
F4h
Access as a Dword
Bit
Type
Reset
Value
Description
31:8
RW
0
MISC_EPARAM_CTL. Miscellaneous electrical-parameter specific control.
7:3
RW
12
TX_EQUALIZATION. Sets the equalization coefficient of the QPI transmitter
based on value obtained from SISTAI simulations.
2
RW
1
EN. Enables or disables custom TEQ setting.
1 - Enable
0 - Disable
1 - Enable
0 - Disable
1:0
RW
0
RSVD.