ICS952607 datasheet(8/21 Pages) ICST

8 / 21 page

Integrated

Circuit

Systems, Inc.

ICS952607

Advance Information

0734—07/16/04

2C Table: Frequency Select Register

Control

Function

Bit 7

FS Source

Frequency H/W IIC

Select

Bit 6

FS6

Freq Select Bit 6

Bit 5

FS5

Freq Select Bit 5

Bit 4

FS4

Freq Select Bit 4

Bit 3

FS3

Freq Select Bit 3

Bit 2

FS2

Freq Select Bit 2

Bit 1

FSA

Freq Select Bit 1

Bit 0

FSB

Freq Select Bit 0

2C Table: Spreading and Device Behavior Control Register

Control

Function

Bit 7

SS1

Spread Select 1

Bit 6

SS0

Spread Select 0

Bit 5

SS_EN

Spread Enable Control

Bit 4

WDS_EN

WD Soft Reset Enable

Bit 3

SRC/SRC#

Output Control

Bit 2

Reserved

Bit 1

CPUCLKT/C_1

Output Control

Bit 0

CPUCLKT/C_0

Output Control

2C Table: Output Control Register

Control

Function

Bit 7

SRC Stop Mode

0: SRCT Driven during

PD#; 1: Tri-stated

Bit 6

Reserved

Bit 5

CPUT Stop Mode

0: CPUT Driven during

PD#; 1: Tri-stated

Bit 4

Reserved

Bit 3

3V66_2

Output Control

Bit 2

Reserved

Bit 1

Reserved

Bit 0

Reserved

Disable

Enable

Driven

Hi-Z

Driven

Hi-Z

Disable

Enable

OFF

Disable

Enable

01 = 0.50%

11 = No Spread

Type

PWD

40,39

Byte 2

Pin #

Name

37,36

43,42

OFF

PWD

Byte 1

Pin #

Name

Type

00 = 0.35%

10 = 0.75%

See Table 1: QuadRom Frequency

Selection Table

PWD

Byte 0

Pin #

Name

Type

Latch Inputs

IIC

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