ICS9DB803DI Datasheet, PDF (14/21 Pages) Integrated Device Technology – Eight Output Differential Buffer for PCIe Gen 2

ICS9DB803DI
Eight Output Differential Buffer for PCIe for Gen 2
SMBus Table: Frequency Select Register, READ/WRITE ADDRESS (DC/DD)
Byte 0
Pin #
Name
Control Function
Bit 7
-
PD_Mode
PD# drive mode
Bit 6
-
STOP_Mode
SRC_Stop# drive mode
Bit 5
-
PD_Polarity
Select PD polarity
Bit 4
-
Reserved
Reserved
Bit 3
-
Reserved
Reserved
Bit 2
-
PLL_BW#
Select PLL BW
Bit 1
-
BYPASS#
BYPASS#/PLL
Bit 0
-
SRC_DIV#
SRC Divide by 2 Select
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
1
driven
Hi-Z
driven
Hi-Z
Low
High
Reserved
Reserved
High BW Low BW
fan-out
ZDB
x/2
1x
PWD
0
0
0
X
X
1
1
1
SMBus Table: Output Control Register
Byte 1
Pin #
Name
Bit 7
42,41
DIF_7
Bit 6
38,37
DIF_6
Bit 5
34,33
DIF_5
Bit 4
30,29
DIF_4
Bit 3
20,21
DIF_3
Bit 2
16,17
DIF_2
Bit 1
12,13
DIF_1
Bit 0
8,9
DIF_0
Control Function
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
Disable
Disable
Disable
Disable
Disable
Disable
Disable
Disable
1
Enable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
PWD
1
1
1
1
1
1
1
1
SMBus Table: Output Control Register
Byte 2
Pin #
Name
Bit 7
42,41
DIF_7
Bit 6
38,37
DIF_6
Bit 5
34,33
DIF_5
Bit 4
30,29
DIF_4
Bit 3
20,21
DIF_3
Bit 2
16,17
DIF_2
Bit 1
12,13
DIF_1
Bit 0
8,9
DIF_0
Control Function
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Output Control
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
Free-run
Free-run
Free-run
Free-run
Free-run
Free-run
Free-run
Free-run
1
Stoppable
Stoppable
Stoppable
Stoppable
Stoppable
Stoppable
Stoppable
Stoppable
PWD
0
0
0
0
0
0
0
0
SMBus Table: Output Control Register
Byte 3
Pin #
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Control Function
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Type
RW
RW
RW
RW
RW
RW
RW
RW
0
1
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
PWD
X
X
X
X
X
X
X
X
IDT^TM/ICS^TM Eight Output Differential Buffer for PCIe Gen 2
14
ICS9DB803DI REV A 06/18/08