W83195WG-382 Datasheet, PDF (10/27 Pages) Winbond – Winbond Clock Generator

W83195WG-382/W83195CG-382
STEPLESS FOR ATI K8 CLOCK GENERATOR
7. I²C CONTROL AND STATUS REGISTERS
(The register No. is increased by 1 if use byte data read/write protocol)
7.1 Register 0: ( Default : 00h )
BIT
AFFECTED PIN/
FUNCTION NAME(S)
7 SSEL<4>
6 SSEL<3>
5 SSEL<2>
4 SSEL<1>
3 SSEL<0>
2 EN_SSEL
1 SPSPEN
PWD AFFECTED PIN / FUNCTION DESCRIPTION
0
0
0 ^{Software frequency table selection through I2C}
0
0
Enable software table selection FS[4:0].
0
0 = Hardware table setting (Jump mode).
1 = Software table setting through Bit7~3 .
(Jumpless mode)
Enable spread spectrum mode under clock
output.
0 _{0 = Spread Spectrum mode disable}
1 = Spread Spectrum mode enable
0 EN_SAFE_FREQ
After watchdog timeout
0 = Reload the hardware FS [4:0] latched
0
pins setting.
1 = Reload the desirable frequency table
selection defined at Reg-5 Bit 4~0.
TYPE
R/W
R/W
R/W
R/W
7.2 Register 1: ( Default : XXh)
BIT
AFFECTED PIN/
FUNCTION NAME(S)
PWD
FUNCTION DESCRIPTION
7 Reserved
6 CPUEN<1>
5 CPUEN<0>
4 Reserved
3 Reserved
2 FS2_BACK
1 Reserved
CPUCLKT1/C1 output control
1 ^{1: Enable}
0: Disable
CPUCLKT0/C0 output control
1 ^{1: Enable}
0: Disable
X Reserved
X Reserved
X ^{Power on latched value of FS2 pin. Default : 0}
1 FS1_BACK
X ^{Power on latched value of FS1 pin. Default : 0}
0 FS0_BACK
X ^{Power on latched value of FS0 pin. Default : 0}
TYPE
R/W
R/W
R/W
R
R
R
R
R
Publication Release Date: Feb 2006
-6-
Revision 0.6