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



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