SMBus Table: Stop State and Impedance Control
Byte 11 Name Control Function Type 0 1 Default
Bit 7
FB_imp[1] FB Zout RW 00=33Ω DIF Zout 10=100Ω DIF Zout
Bit 6
FB_imp[0] FB Zout RW 01=85Ω DIF Zout 11 = Reserved
Bit 5
0
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
STP[1] RW 00 = Low/Low 10 = High/Low 0
Bit 0
STP[0] RW 01 = HiZ/HiZ 11 = Low/High 0
Note: xx42 = 10, xx52 = 01, P2 = factory programmable.
SMBus Table: Impedance Control
Byte 12 Name Control Function Type 0 1 Default
Bit 7
DIF0_imp[1] RW 00=33Ω DIF Zout 10=100Ω DIF Zout
Bit 6
DIF0_imp[0] RW 01=85Ω DIF Zout 11 = Reserved
Bit 5
X
Bit 4
X
Bit 3
X
Bit 2
X
Bit 1
X
Bit 0
X
Note: xx42 = 10, xx52 = 01, P2 = factory programmable.
SMBus Table: Impedance Control
Byte 13 Name Control Function Type 0 1 Default
Bit 7
X
Bit 6
X
Bit 5
X
Bit 4
X
Bit 3
X
Bit 2
X
Bit 1
DIF1_imp[1] DIF1 Zout RW 00=33Ω DIF Zout 10=100Ω DIF Zout
Bit 0
DIF1_imp[0] DIF1 Zout RW 01=85Ω DIF Zout 11 = Reserved
Note: xx42 = 10, xx52 = 01, P2 = factory programmable.
SMBus Table: Pull-up Pull-down Control
Byte 14 Name Control Function Type 0 1 Default
Bit 7
OE0_pu/pd[1] RW 00=None 10=Pup 0
Bit 6
OE0_pu/pd[0] RW 01=Pdwn 11 = Pup+Pdwn 1
Bit 5
X
Bit 4
X
Bit 3
X
Bit 2
X
Bit 1
X
Bit 0
X
Note: xx42 = 10, xx52 = 01, P2 = factory programmable.
see Note
Reserved
Reserved
Reserved
Reserved
