W83195WG-413 Datasheet, PDF (19/27 Pages) Winbond – Winbond Clock Generator

W83195WG-413/W83195CG-413
STEPLESS FOR ATI P4 CLOCK GENERATOR
7.21 Register 20: ( Default : 88h )
BIT
AFFECTED PIN/
FUNCTION NAME(S)
PWD
FUNCTION DESCRIPTION
TYPE
7 Reserved
1 Reserved
R/W
6 SEC<6>
0
5 SEC<5>
0
4 SEC<4>
3 SEC<3>
2 SEC<2>
0 ^{Setting the down count depth (Failure decision).}
One bit resolution represent 250ms. Default time
1 depth is 8*250ms = 2.0 second. If the watchdog R/W
timer is counting, this register will return present
0 down count value.
1 SEC<1>
0
0 SEC<0>
0
7.22 Register 21: ( Default : ECh )
BIT
AFFECTED PIN/
FUNCTION NAME(S)
PWD
FUNCTION DESCRIPTION
7 Reserved
1 Reserved
6 CPU2SRC_SYNC
5 CPU2PCI_SYNC
4 Reserved
CPU align with SRC
1 1 : Enable
0 : Disable
CPU align with PCI
1 1 : Enable
0 : Disable
0 Reserved
3 Reserved
1 Reserved
2 SRCSKEW<2>
1 SRCSKEW<1>
0 SRCSKEW<0>
1 _{CPU1 to SRC skew control}
0
Skew resolution is 300ps
The decision of skew direction is same as
0 ^{SRCSKEW<2:0> setting}
TYPE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
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Publication Release Date: Feb 2006
Revision 0.6