EP80579 Datasheet, PDF (1564/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
38.4.1.5 Offset 0x00000024h: GCU_GBE_RC_CTRL - GCU GbE RCOMP Control
Register
Table 38-7. Offset 0x00000024h: GCU_GBE_RC_CTRL - GCU GbE RCOMP Control Register
Description: RCOMP Control for GbE Bus outputs.
View: PCI
BAR: CSRBAR
Bus:Device:Function: M:3:0
Offset Start: 00000024h
Offset End: 00000027h
Size: 32 bit
Default: 0031F31Fh
Power Well: Core
Bit Range
31
30
29
28
27
26
25
24
23 :20
19 :12
11 :08
7 :00
Bit Acronym
Bit Description
Sticky
On-die termination disabled.
EN
0 - Enabled
1 - Not enabled
OVR_WR
Overwrite RCOMP engine strength outputs with DN_TST
and UP_TST and apply to output pads
RSVD
Reserved
RSVD
Reserved
RSVD
Reserved
MNTR
Monitor. Disable the update lowpass filter. Allow new
strength values to be output to the rcomp pads as soon
as they are calculated.
STOP
Stop sending new strength values to the rcomp pads.
MNTR has precedence over STOP
DIV_BPS
When set, rcomp engine runs at GBE_REFCLK / 4. When
clear, rcomp engine runs at GBE_REFCLK/16
DN_TST_11_8
Pull down strength bits [11:8]. Each bit enables 5 unit
pull-down drivers in the output pad.
DN_TST_7_0
Pull down strength bits [7:0]. Each bit enables 1 unit
pull-down driver in the output pad.
UP_TST_11_8
Pull up strength bits [11:8]. Each bit enables 5 unit pull-
up drivers in the output pad.
UP_TST_7_0
Pull up strength bits [7:0]. Each bit enables 1 unit pull-
up driver in the output pad.
Bit Reset
Value
0h
0h
0h
0h
0h
0h
0h
0h
3h
1Fh
3h
1Fh
Bit Access
RW
RW
RV
RV
RV
RW
RW
RW
RW
RW
RW
RW
38.4.1.6 Offset 0x00000044h: GCU_GBE_RC_STAT - GCU GbE RCOMP Status
Register
Table 38-8. Offset 0x00000044h: GCU_GBE_RC_STAT - GCU GbE RCOMP Status Register
Description: RCOMP status of Local Expansion Bus outputs.
View: PCI
BAR: CSRBAR
Bus:Device:Function: M:3:0
Offset Start: 00000044h
Offset End: 00000047h
Size: 32 bit
Default: 00000000h
Power Well: Core
Bit Range
31
30
29
Bit Acronym
Bit Description
Ready
Ready from the RCOMP controller
PMOS_COMP PMOS comparator output (input to controller)
NMOS_COMP NMOS comparator output (input to controller)
Sticky
Bit Reset
Value
0h
0h
0h
Bit Access
RO
RO
RO
Intel^® EP80579 Integrated Processor Product Line Datasheet
1564
August 2009
Order Number: 320066-003US