ICS9148G-12 datasheet(8/18 Pages) ICST

Part #	ICS9148G-12

Description	Pentium/ProTM System Clock Chip

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Manufacturer	ICST [Integrated Circuit Systems]

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8

ICS9148-12

Byte 1: CPU, 24/48 MHz Clock Register

Notes: 1 = Enabled; 0 = Disabled, outputs held low

Byte 2: PCICLK Clock Register

Byte 4: SDRAM Clock Register

Notes: 1 = Enabled; 0 = Disabled, outputs held low

T

I

B#

N

I

PD

W

PN

O

I

T

P

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C

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D

7

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6

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B8

1

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Byte 3: SDRAM Clock Register

Notes: 1 = Enabled; 0 = Disabled, outputs held low

T

I

B#

N

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W

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T

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6

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5

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21

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5

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4

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31

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3

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31

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Note: PWD = Power-Up Default

Byte 5: Peripheral Clock Register

Notes: 1 = Enabled; 0 = Disabled, outputs held low

T

I

B#

N

I

PD

W

PN

O

I

T

P

I

R

C

S

E

D

7

t

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B-

1

d

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6

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1

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5

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4

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41

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3

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v

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2

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1

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v

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R

1

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B1

1

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c

a

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I

/

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A

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1

F

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R

0

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B2

1

)

t

c

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I

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A

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0

F

E

R

Note: PWD = Power-Up Default

Byte 6: Optional Register for Future

Notes:

1. Byte 6 is reserved by Integrated Circuit Systems for

future applications.

T

I

B#

N

I

PD

W

PN

O

I

T

P

I

R

C

S

E

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1

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6

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5

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1

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4

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1

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3

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1

d

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v

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2

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B-

1

d

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v

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R

1

t

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B-

1

d

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v

r

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s

e

R

0

t

i

B-

1

d

e

v

r

e

s

e

R

Similar Part No. - ICS9148G-12

Manufacturer	Part #	Datasheet	Description
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Manufacturer	Part #	Datasheet	Description
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ICS9148G-12 Datasheet(PDF) 8 Page - Integrated Circuit Systems

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