W83195BG-118 Ver la hoja de datos (PDF) - Winbond

Número de pieza

componentes Descripción

Lista de partido

W83195BG-118

Clock Generator

Winbond 

W83195BR-118/W83195BG-118

STEPLESS FOR INTEL 915/945 CHIPSETS

Table-2 CPU, PCIE, PCI divider ratio selection Table

LSB

PCI

PCIE

Bit5

Bit3

MSB

0

1

0

1

Bit2/

0

Div12 Div16 Div3 Div4

Bit4/

1

Bit6

Div20 Div24 Div8 Div6

00

Div2

Div8

CPU

Bit1, 0

01

10

Div3 Div4

Div8 Div8

11

Div6

Div8

7.14 Register 13: Step-less Enable Control (Default: 0Ah)

BIT

NAME

PWD

DESCRIPTION

TYPE

7

EN_MN_PROG

0 0: Output frequency depend on frequency table

R/W

1: Program all clock frequency by changing M/N value

The equation is

VCO =14.318MHz*(N+4)/ M.

Once the watchdog timer timeout, the bit will be clear.

Then the frequency will be decided by hardware default

FS<2:0> or desired frequency select SAF_FREQ [4:0]

depend on EN_SAFE_FREQ (Reg0 - bit 0).

6

N<10>

0 Programmable N divisor bit 10.

R/W

5

Reserved

0 Reserved

R/W

4

Reserved

0 Reserved

R/W

3

IVAL<3>

1 Charge pump current selection

R/W

2

IVAL<2>

0

R/W

1

IVAL<1>

1

R/W

0

IVAL<0>

0

R/W

- 13 -

Publication Release Date: May 2006

Revision 0.81

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