W83195WG-413 Datasheet, PDF (10/27 Pages) Winbond – Winbond Clock Generator

W83195WG-413/W83195CG-413
STEPLESS FOR ATI P4 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)
PWD
AFFECTED PIN / FUNCTION DESCRIPTION
7 SSEL<4>
0
6 SSEL<3>
5 SSEL<2>
0
0 Software frequency table selection through I²C
4 SSEL<1>
0
3 SSEL<0>
2 EN_SSEL
1 SPSPEN
0 EN_SAFE_FREQ
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
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)
7 CPUEN<2>
6 CPUEN<1>
5 CPUEN<0>
PWD
FUNCTION DESCRIPTION
CPUT/C_ITP output control
1 1: Enable
0: Disable
CPUCLKT1/C1 output control
1 1: Enable
0: Disable
CPUCLKT0/C0 output control
1 1: Enable
0: Disable
4 CK410_N_BACK
X Power on latched value of FS4 pin. Default : 0
TYPE
R/W
R/W
R/W
R
Publication Release Date: Feb 2006
-6-
Revision 0.6