w83194br-b Winbond Electronics Corp America, w83194br-b Datasheet - Page 19

• Manufacturer Part Number: w83194br-b
• Description: Winbond Clock Generator For Intel P4 845 Series Chipset
• Manufacturer: Winbond Electronics Corp America

7.15 Register 14: Control the period of spread spectrum
Note: The Register 15:17 slew rate control select bit fit value Please fellow below table.
The S1_N is S1 complementary and S2_N is S2 complementary, please fit complementary
value.
7.16 Register 15: Slew Rate Control
BIT
BIT
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
10/01
S1:S2
11
00
3V66_S1_N
3V66_S2_N
REF_S1_N
REF_S2_N
SPCNT [5]
SPCNT [4]
SPCNT [3]
SPCNT [2]
SPCNT [1]
SPCNT [0]
3V66_S1
3V66_S2
REF_S1
REF_S2
NAME
NAME
CLOCK GEN. FOR INTEL P4 845 SERIES CHIPSET
-
-
S1_N: S2_N
PWD
PWD
0
0
1
0
0
1
1
1
0
1
0
1
1
0
0
1
01/10
00
11
Reserved
Reserved
Program the period of spread spectrum.
Pin 48 REF output slew rate control bit.
This slew rate status default is Weak.
Pin 20,21,22, 3V66 [1:3] output slew rate control bit.
This slew rate status default is Normal.
- 15 -
Normal
Strong
Weak
W83194BR-B/W83194BG-B
DESCRIPTION
DESCRIPTION
Publication Release Date: October 2006
SLEW RATE STATUS
Revision 3.1