LOW-POWER CK420BQ DERIVATIVE FOR PCIE COMMON CLOCK ARCHITECTURES

12

REVISION B 03/06/15

932SQL450 DATASHEET

SMBus Table: NS_SAS/NS_SRC Frequency Margining Table

Pin #

Name

Control Function

Type

0

1

Default

Bit 7

0

Bit 6

0

Bit 5

0

Bit 4

0

Bit 3

FS3

Freq. Sel 3

RW

0

Bit 2

FS2

Freq. Sel 2

RW

1

Bit 1

FS1

Freq. Sel 1

RW

1

Bit 0

FS0

Freq. Sel 0

RW

1

SMBus Table: Test Mode and CPU/SRC/PCI Frequency Select Register

Pin #

Name

Control Function

Type

0

1

Default

Bit 7

Test Mode

Test Mode Type

RW

Hi-Z

REF/N

0

Bit 6

Test Select

Select Test Mode

RW

Disable

Enable

0

Bit 5

0

Bit 4

1

Bit 3

0

Bit 2

FS2

Freq. Sel 2

RW

0

Bit 1

FS1

Freq. Sel 1

RW

1

Bit 0

FS0

Freq. Sel 0

RW

1

Note: Internal Pull up on 100M_133M# pin will result in default CPU frequency of 100 MHz.

SMBus Table: Vendor & Revision ID Register

Pin #

Name

Control Function

Type

0

1

Default

Bit 7

RID3

R

0

Bit 6

RID2

R

0

Bit 5

RID1

R

0

Bit 4

RID0

R

1

Bit 3

VID3

R

0

Bit 2

VID2

R

0

Bit 1

VID1

R

0

Bit 0

VID0

R

1

SMBus Table: Byte Count Register

Pin #

Name

Control Function

Type

0

1

Default

Bit 7

BC7

RW

0

Bit 6

BC6

RW

0

Bit 5

BC5

RW

0

Bit 4

BC4

RW

0

Bit 3

BC3

RW

0

Bit 2

BC2

RW

0

Bit 1

BC1

RW

0

Bit 0

BC0

RW

1

SMBus Table: Device ID Register

Pin #

Name

Control Function

Type

0

1

Default

Bit 7

DID7

R

--

0

Bit 6

DID6

R

--

1

Bit 5

DID5

R

--

0

Bit 4

DID4

R

--

0

Bit 3

DID3

R

--

0

Bit 2

DID2

R

--

1

Bit 1

DID1

R

--

0

Bit 0

DID0

R

--

1

-

-

-

-

-

See CPU/SRC/PCI Frequency

Select Table

RESERVED

-

1 for B rev

0001 for ICS/IDT

-

Byte 9

-

-

Byte 5

-

Byte 6

-

-

-

RESERVED

REVISION ID

(1h forB rev)

See NS_SAS/NS_SRC Frequency

Table.

RESERVED

Byte 7

-

-

-

-

Byte 8

-

-

-

-

-

-

RESERVED

-

-

-

-

RESERVED

-

RESERVED

Device ID

(45 hex)

Byte Count

Programming b(7:0)

Writing to this register will configure

how many bytes will be read back,

default is A bytes.

(0 to 9

VENDOR ID

RESERVED