ICS9LRS3187B Datasheet, PDF (7/20 Pages) Integrated Device Technology – PROGRAMMABLE TIMING CONTROL HUB FOR INTEL BASED SYSTEMS

ICS9LRS3187B
Programmable Timing Control Hub for Intel Based Systems
Datasheet
Byte 0 FS Readback and PLL Selection Register
Bit Pin
Name
Description
Type
0
7-
FSLC
CPU Freq. Sel. Bit
R
6-
Reserved
Reserved
RW
-
5-
Reserved
Reserved
RW
-
4-
3
iAMT_EN
Reserved
Set via SMBus
Reserved
RW
(Sticky "1")
RW
Legacy Mode
2-
Reserved
Reserved
RW
SATA (SRC2
1-
SATA_SEL
Select source for SATA clock
RW
100MHz_SS) =
SRC_Main
1 = on Power Down de-assert return to last known
state
0-
PD_Restore
0 = clear all SMBus configurations as if cold power-
on and go to latches open state
RW
Configuration Not
Saved
This bit is ignored and treated at '1' if device is in
iAMT mode.
1
-
-
iAMT Enabled
SATA (100MHz
non_SS) = SATA
PLL
Configuration
Saved
Default
Latch
0
1
0
0
0
0
1
Byte 1 DOT96 Select and PLL3 Quick Config Register,
Bit Pin
Name
Description
7
Reserved
Reserved
6
SRC_PLL_SSC_SEL
Select 0.5% down or center SSC
5
Reserved
Reserved
4
Reserved
Reserved
3
27SS PLL CF2
27SS PLL Quick Config Bit 2
2
27SS PLL _CF1
27SS PLL Quick Config Bit 1
1
27SS PLL CF0
27SS PLL Quick Config Bit 0
0
Reserved
Reserved
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
-
Down spread
-
1
-
Center spread
-
See Table 2: pin 6/7 Configuration
-
-
Default
1
0
1
0
0
1
0
1
Byte 2 Output Enable Register
Bit Pin
Name
Description
7
REF_3L_OE
Output enable for REF0, if disabled output is tri-
stated
6
Reserved
Reserved
5
Reserved
Reserved
4
Reserved
Reserved
3
Reserved
Reserved
2
Reserved
Reserved
1
Reserved
Reserved
0
Reserved
Reserved
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
Output Disabled
-
-
-
-
-
-
-
1
Output Enabled
-
-
-
-
-
-
-
Default
1
1
1
1
1
1
1
1
Byte 3 Output Enable Register
Bit Pin
Name
7
Reserved
6
Reserved
5
Reserved
4
Reserved
3
Reserved
2
Reserved
1
Reserved
0
Reserved
Description
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Type
0
RW
-
RW
-
RW
-
RW
-
RW
-
RW
-
RW
RW
-
1
Default
-
1
-
1
-
1
-
1
-
1
-
1
1
-
1
IDT^® Programmable Timing Control Hub for Intel Based Systems
7
1602F—11/04/11