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W83194BR-KX

STEP-LESS 3-DIMM K7 CLOCK

Winbond 

W83194BR-KX

PRELIMINARY

7.2.2 Register 1 : CPU Clock Register (1 = enable, 0 = Stopped)

Bit @PowerUp Pin

Description

7

1

- Reserved

6

1

- 1=center type S.S.T.

0= 0-0.5% down type S.S.T.

5

0

- 0 = Normal

1 = Spread Spectrum enabled

4

0

- 0 = ±0.25% Spread Spectrum Modulation

1 = ±0.5% Spread Spectrum Modulation

3

1

40 SDRAM12 (Active / Inactive)

2

1

- Reserved

1

1

43 CPUT0

44 CPUC0 (Active / Inactive)

0

1

46 CPUT_CS (Active / Inactive)

7.2.3 Register 2: PCI Clock Register (1 = enable, 0 = Stopped)

Bit @PowerUp Pin

Description

7

1

- Reserved

6

1

7 PCICLK0 (Active / Inactive)

5

1

- Reserved

4

1

13 PCICLK5 (Active / Inactive)

3

1

12 PCICLK4 (Active / Inactive)

2

1

11 PCICLK3 (Active / Inactive)

1

1

10 PCICLK2 (Active / Inactive)

0

1

8 PCICLK1 (Active / Inactive)

7.2.4 Register 3: SDRAM, 24MHz, 48MHz Clock Register ( 1 = enable, 0 = Stopped )

Bit @PowerUp

Pin

Description

7

1

46

REF1 (Active / Inactive)

6

1

2

REF0 (Active / Inactive)

5

1

26

48MHz (Active / Inactive)

4

1

25

24_48MHz (Active / Inactive)

3

1

-

SEL24_48 (Select 24MHz or 48MHz for pin25)

2

1

21,20,18, 17 SDRAM (8:11) (Active / Inactive)

1

1

32,31,29, 28 SDRAM (4:7) (Active / Inactive)

0

1

38,37,35, 34 SDRAM (0:3) (Active / Inactive)

Publication Release Date: May 2000

-8-

Revision 0.42

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