OCTOBER 19, 2016

13

8-OUTPUT 3.3V PCIE CLOCK GENERATOR

9FGL08 DATASHEET

SMBus Table: Stop State Control

Byte 11

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

STP[1]

RW

00 = Low/Low

10 = High/Low

0

Bit 0

STP[0]

RW

01 = HiZ/HiZ

11 = Low/High

0

SMBus Table: Impedance Control

Byte 12

Name

Control Function

Type

0

1

Default

Bit 7

DIF3_imp[1]

DIF3 Zout

RW

Bit 6

DIF3_imp[0]

DIF3 Zout

RW

Bit 5

DIF2_imp[1]

DIF2 Zout

RW

Bit 4

DIF2_imp[0]

DIF2 Zout

RW

Bit 3

DIF1_imp[1]

DIF1 Zout

RW

Bit 2

DIF1_imp[0]

DIF1 Zout

RW

Bit 1

DIF0_imp[1]

DIF0 Zout

RW

Bit 0

DIF0_imp[0]

DIF0 Zout

RW

Note: Each output defaults to '10' for 9DBLxx41, and '01' for 9DBLxx51. Defaults for 9DBLxxP1 parts are programmable.

SMBus Table: Impedance Control

Byte 13

Name

Control Function

Type

0

1

Default

Bit 7

DIF7_imp[1]

DIF7 Zout

RW

Bit 6

DIF7_imp[0]

DIF7 Zout

RW

Bit 5

DIF6_imp[1]

DIF6 Zout

RW

Bit 4

DIF6_imp[0]

DIF6 Zout

RW

Bit 3

DIF5_imp[1]

DIF5 Zout

RW

Bit 2

DIF5_imp[0]

DIF5 Zout

RW

Bit 1

DIF4_imp[1]

DIF4 Zout

RW

Bit 0

DIF4_imp[0]

DIF4 Zout

RW

Note: Each output defaults to '10' for 9DBLxx41, and '01' for 9DBLxx51. Defaults for 9DBLxxP1 parts are programmable.

SMBus Table: Pull-up Pull-down Control

Byte 14

Name

Control Function

Type

0

1

Default

Bit 7

OE3_pu/pd[1]

RW

00=None

10=Pup

0

Bit 6

OE3_pu/pd[0]

RW

01=Pdwn

11 = Pup+Pdwn

1

Bit 5

OE2_pu/pd[1]

RW

00=None

10=Pup

0

Bit 4

OE2_pu/pd[0]

RW

01=Pdwn

11 = Pup+Pdwn

1

Bit 3

OE1_pu/pd[1]

RW

00=None

10=Pup

0

Bit 2

OE1_pu/pd[0]

RW

01=Pdwn

11 = Pup+Pdwn

1

Bit 1

OE0_pu/pd[1]

RW

00=None

10=Pup

0

Bit 0

OE0_pu/pd[0]

RW

01=Pdwn

11 = Pup+Pdwn

1

Reserved

Reserved

Reserved

Reserved

True/Complement DIF Output

Disable State

OE3 Pull-up(PuP)/

Pull-down(Pdwn) control

OE2 Pull-up(PuP)/

Pull-down(Pdwn) control

OE1 Pull-up(PuP)/

Pull-down(Pdwn) control

OE0 Pull-up(PuP)/

Pull-down(Pdwn) control

00=33ohm DIF Zout

01=85ohm DIF Zout

10=100ohm DIF Zout

11 = Reserved

00=33ohm DIF Zout

01=85ohm DIF Zout

10=100ohm DIF Zout

11 = Reserved

Reserved

Reserved

see Note

see Note