w83627sf Winbond Electronics Corp America, w83627sf Datasheet - Page 140

• Manufacturer Part Number: w83627sf
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

CRFA (VID output data register)
This register allows user to configure different VID value. It can be read or written.
Bit 7
Bit 6 – 5 : VID guarding bits. The corresponding power on setting pins are GP56, 66 and their values
Bit 4 – 0 : configurable VID output value.
If VIDSEL of CR2C is 1 (select VID function), GP22, 21, 62 - 60 function as VID inputs and 55 - 51
function as VID outputs. During PWROK = 0, GP55~51 (VIDOUT) are equivalent to GP22, 21, 62~60
(VIDIN). After power on, User may configure LC.CRFA.bit4 - 0 to output a new VIDOUT combination
if this new combination comply with the constraints of VID guarding bits specified in bit 6, 5 of this
register. VID outputs are equal to VID inputs if constraint is not met.
: Select VID code tables.
= 0 old VID code table.
= 1 new VID code table.
are latched on the rising edge of PWROK signal.
Bit 6
0
0
1
1
Bit 5
0
1
0
1
3 units constraint
4 units constraint
5 units constraint
- 133 -
No constraint
Limit
Publication Release Date: Nov. 2000
PRELIMINARY
W83627SF
Revision 0.60