w83194br-323 Winbond Electronics Corp America, w83194br-323 Datasheet - Page 10

• Manufacturer Part Number: w83194br-323
• Description: Clock For Intel Chipsets
• Manufacturer: Winbond Electronics Corp America

7. I2C CONTROL AND STATUS REGISTERS
7.1
7.2
7.3
BIT
BIT
BIT
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Register 0: Frequency Select Register (default = 0)
Register 1: CPU Clock Register (1 = enable, 0 = Stopped)
Register 2: PCI Clock Register (1 = enable, 0 = Stopped)
EN_SPSP
SSEL [4]
SSEL [3]
SSEL [2]
SSEL [1]
SSEL [0]
EN_SSEL
EN_SAFE_FREQ
44,45
37,38
40,41
-
-
-
-
-
48
17
16
15
14
12
11
10
STEPLESS CLOCK FOR INTEL BROOKDALE CHIPSET
PIN NO
PIN NO
NAME
PWD
PWD
X
1
1
1
1
1
1
1
X
X
X
X
X
1
1
1
PWD
0
0
0
0
0
0
0
0
MULTISEL0 trapping pin data read back
PCICLK6
PCICLK5
PCICLK4
PCICLK3
PCICLK2
PCICLK1
PCICLK0
CPUCLK_T2 / C2
CPUCLK_T1 / C1
CPUCLK_T0 / C0
FS [4] Read back.
FS [3] Read back
FS [2] Read back
FS [1] Read back
FS [0] Read back
Enable Spread Spectrum in the frequency table.
0 = Normal 1 = Spread Spectrum enabled
Frequency selection by software via I
Enable software program FS [4:0].
0 = Select frequency by hardware.
1= Select frequency by software I
Enable reload safe frequency when the watchdog is timeout.
0 = reload the FS [4:0] latched pins when watchdog time out.
1 = reload the safe frequency bit defined at Register 5 bit 4~0.
W83194BR-323/W83194BG-323
- 7 -
DESCRIPTION
DESCRIPTION
DESCRIPTION
2
C - Bit 6 ~ 2.
Publication Release Date: March 2006
2
C.
Revision 2.1