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9SQL4954 Datasheet, PDF (14/20 Pages) Integrated Device Technology – 4-output CK420BQ Derivative
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9SQL4954 DATASHEET
SMBus Table: Impedance Control
Byte 12
Name
Bit 7
BCLK1_imp[1]
Bit 6
BCLK1_imp[0]
Bit 5
Bit 4
Bit 3
BCLK0_imp[1]
Bit 2
BCLK0_imp[0]
Bit 1
Bit 0
Control Function
BCLK1 Zout
BCLK1 Zout
Reserved
Reserved
BCLK0 Zout
BCLK0 Zout
Reserved
Reserved
Type
RW
RW
RW
RW
SMBus Table: Impedance Control
Byte 13
Name
Bit 7
Bit 6
Bit 5
BCLK3_imp[1]
Bit 4
BCLK3_imp[0]
Bit 3
BCLK2_imp[1]
Bit 2
BCLK2_imp[0]
Bit 1
Bit 0
Control Function
Reserved
Reserved
BCLK3 Zout
BCLK3 Zout
BCLK2 Zout
BCLK2 Zout
Reserved
Reserved
Type
RW
RW
RW
RW
SMBus Table: Pull-up Pull-down Control
Byte 14
Name
Control Function
Bit 7
OE1_pu/pd[1]
OE1 Pull-up(PuP)/
Bit 6
OE1_pu/pd[0]
Pull-down(Pdwn) control
Bit 5
Reserved
Bit 4
Reserved
Bit 3
OE0pu/pd[1]
OE0Pull-up(PuP)/
Bit 2
OE0_pu/pd[0]
Pull-down(Pdwn) control
Bit 1
Reserved
Bit 0
Reserved
Type
RW
RW
RW
RW
SMBus Table: Pull-up Pull-down Control
Byte 15
Name
Control Function
Bit 7
Reserved
Bit 6
Reserved
Bit 5
OE3_pu/pd[1]
OE3 Pull-up(PuP)/
Bit 4
OE3_pu/pd[0]
Pull-down(Pdwn) control
Bit 3
OE2_pu/pd[1]
OE2 Pull-up(PuP)/
Bit 2
OE2_pu/pd[0]
Pull-down(Pdwn) control
Bit 1
Reserved
Bit 0
Reserved
Type
RW
RW
RW
RW
SMBus Table: Pull-up Pull-down Control
Byte 16
Name
Control Function
Bit 7
Reserved
Bit 6
Reserved
Bit 5
Reserved
Bit 4
Reserved
Bit 3
Reserved
Bit 2
Reserved
Bit 1 CKPWRGD_PD_pu/pd[1] CKPWRGD_PD Pull-up(PuP)/
Bit 0 CKPWRGD_PD_pu/pd[0]
Pull-down(Pdwn) control
Type
RW
RW
Byte 17 is Reserved
0
00=33Ω Zout
01=85Ω Zout
00=33Ω Zout
01=85Ω Zout
0
00=33Ω Zout
01=85Ω Zout
00=33Ω Zout
01=85Ω Zout
0
00=None
01=Pdwn
00=None
01=Pdwn
0
00=None
01=Pdwn
00=None
01=Pdwn
0
00=None
01=Pdwn
1
10=100Ω Zout
11 = Reserved
10=100Ω Zout
11 = Reserved
Default
0
1
X
X
0
1
X
X
1
10=100Ω Zout
11 = Reserved
10=100Ω Zout
11 = Reserved
Default
X
X
0
1
0
1
X
X
1
10=Pup
11 = Pup+Pdwn
10=Pup
11 = Pup+Pdwn
Default
0
1
X
X
0
1
X
X
1
10=Pup
11 = Pup+Pdwn
10=Pup
11 = Pup+Pdwn
Default
X
X
0
1
0
1
X
X
1
10=Pup
11 = Pup+Pdwn
Default
0
0
1
0
0
1
1
0
4-OUTPUT CK420BQ DERIVATIVE
14
DECEMBER 12, 2016
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