9ZX21201AKLF datasheet(11/16 Pages) IDT

Part #	9ZX21201AKLF

Description	12-OUTPUT DIFFERENTIAL Z-BUFFER FOR PCIE GEN2/3 AND QPI

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Manufacturer	IDT [Integrated Device Technology]

Direct Link	http://www.idt.com

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IDT®

12-Output Differential Z-buffer for PCIe Gen2/3 and QPI

1682B- 12/08/11

9ZX21201

12-Output Differential Z-buffer for PCIe Gen2/3 and QPI

11

SMBusTable: PLL Mode, and Frequency Select Register

Pin #

Name

Control Function

Type

0

1

Default

Bit 7

PLL Mode 1

PLL Operating Mode Rd back 1

R

Latch

Bit 6

PLL Mode 0

PLL Operating Mode Rd back 0

R

Latch

Bit 5

0

Bit 4

0

Bit 3

PLL_SW_EN

Enable S/W control of PLL BW

RW

HW Latch

S/W Control

0

Bit 2

PLL Mode 1

PLL Operating Mode 1

RW

1

Bit 1

PLL Mode 0

PLL Operating Mode 1

RW

1

Bit 0

100M_133M#

Frequency Select Readback

R

133MHz

100MHz

Latch

SMBusTable: Output Control Register

Pin #

Name

Control Function

Type

0

1

Default

Bit 7

DIF_7_En

Output Control - '0' overrides OE# pin

RW

1

Bit 6

DIF_6_En

Output Control - '0' overrides OE# pin

RW

1

Bit 5

DIF_5_En

Output Control - '0' overrides OE# pin

RW

1

Bit 4

DIF_4_En

Output Control - '0' overrides OE# pin

RW

1

Bit 3

DIF_3_En

Output Control - '0' overrides OE# pin

RW

1

Bit 2

DIF_2_En

Output Control - '0' overrides OE# pin

RW

1

Bit 1

DIF_1_En

Output Control - '0' overrides OE# pin

RW

1

Bit 0

DIF_0_En

Output Control - '0' overrides OE# pin

RW

1

SMBusTable: Output Control Register

Pin #

Name

Control Function

Type

0

1

Default

Bit 7

0

Bit 6

0

Bit 5

0

Bit 4

0

Bit 3

DIF_11_En

Output Control - '0' overrides OE# pin

RW

1

Bit 2

DIF_10_En

Output Control - '0' overrides OE# pin

RW

1

Bit 1

DIF_9_En

Output Control - '0' overrides OE# pin

RW

1

Bit 0

DIF_8_En

Output Control - '0' overrides OE# pin

RW

1

SMBusTable: Reserved Register

Pin #

Name

Control Function

Type

0

1

Default

Bit 7

0

Bit 6

0

Bit 5

0

Bit 4

0

Bit 3

0

Bit 2

0

Bit 1

0

Bit 0

0

Reserved

See PLL Operating Mode

Readback Table

See PLL Operating Mode

Readback Table

Low/Low

Enable

30/31

Byte 3

50/51

59/60

54/55

Byte 2

Byte 0

5

4

These bits

available in B

rev only.

Byte 1

47/46

64/63

26/27

21/22

17/18

43/42

39/38

35/34

Low/Low

Enable

Reserved

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