W83194BR-703 WINBOND [Winbond], W83194BR-703 Datasheet - Page 17

• Manufacturer Part Number: W83194BR-703
• Description: STEPLESS CLOCK FOR SIS 741 CHIPSET
• Manufacturer: WINBOND [Winbond]

Table-2 CPU, ZCLK divider ratio selection Table
7.14 Register 13: M/N Control (Default: 0Ah)
Bit2/
Bit4/
Bit9
BIT
7
6
5
4
3
2
1
0
EN_MN_PROG
NVAL<10>
DIVM_P1
DIVM_P0
IVAL<3>
IVAL<2>
IVAL<1>
IVAL<0>
MSB
LSB
NAME
0
1
PWD
X
X
X
X
X
0
0
0
Div3
Div5
0
0: Output frequency depend on frequency table
1: Program all clock frequency by changing M/N value
The equation is
Once the watchdog timer timeout, the bit will be clear. Then
the frequency will be decided by hardware default FS<4:0>
or desired
EN_SAFE_FREQ (Reg0 - bit 7).
Programmable N divisor bit 10.
Variable accumulation period for M divisor. Depend
On VCO Frequency.
00: 400M
10: 667M
Charge pump current selection
VCO =14.318MHz*(N+4)/ M.
ZCLK
BIT5
Div4
Div6
1
frequency select SAF_FREQ [4:0] depend on
W83194BR-703/W83194BG-703
- 13 -
Div2
Div6
00
DESCRIPTION
Div3
Div8
Publication Release Date: Jan. 2006
01
01: 533M
11: 800M
BIT1, 0
CPU
Div4
Div8
10
Revision 0.8
Div5
Div8
11