w83194br-619 Winbond Electronics Corp America, w83194br-619 Datasheet - Page 20

• Manufacturer Part Number: w83194br-619
• Description: Winbond Clock Generator For Intel P4 Springdale Series Chipset P4 Springdale Series Chipset
• Manufacturer: Winbond Electronics Corp America

7.21 Register 18: Slew Rate Control (Default =55H)
7.22 Register 19: Control Register (Default =FFH)
7.23 Register 20: Winbond Chip ID – Project Code Register (Ready Only) (Default
BIT
BIT
BIT
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
CPUSTOP_EN
=47H)
PCISTOP_EN
INV_DOT48
INV_USB48
USB48_S2
USB48_S1
SRCS_EN
INV_SRC
PCI_75_S2
PCI_75_S1
PCI_42_S2
PCI_42_S1
PCI_10_S2
PCI_10_S1
CLOCK GEN. FOR INTEL P4 SPRINGDALE/PRESCOTT SERIES CHIPSET
REF_S2
REF_S1
NAME
CHPI_ID [7]
CHPI_ID [6]
CHPI_ID [5]
CHPI_ID [4]
CHPI_ID [3]
CHPI_ID [2]
CHPI_ID [1]
CHPI_ID [0]
NAME
NAME
PWD
PWD
1
1
1
1
1
1
1
1
1
0
1
0
1
0
1
0
Stop all CPU clocks. 1: Enable stop feature, 0: Disable
Stop SRC clock and all PCI clocks except free running parts.
1: Enable stop feature, 0: Disable
Allow PCISTOP pin to affect SRC output state
1: Allow, 0: Ignore the PCISTOP pin effect (Free running)
Invert the DOT48 phase
0: In phase with USB48, 1: 180 degrees out of phase
Invert the USB48 phase
0: In phase with DOT48, 1: 180 degrees out of phase
USB48/DOT48/USB24_48 slew rate control
11: Strong, 00: Weak, 10/01: Normal
Invert the SRC phase, 0: Default, 1: Inverse
PWD
PCI7, 6,5 slew rate control
11: Strong, 00: Weak, 10/01: Normal
PCI4, 3,2 slew rate control
11: Strong, 00: Weak, 10/01: Normal
PCI1, 0
11: Strong, 00: Weak, 10/01: Normal
REF slew rate control
11: Strong, 00: Weak, 10/01: Normal
0
1
0
0
0
1
1
1
Winbond Chip ID. W83194BR-619 (SA5847).
Winbond Chip ID.
Winbond Chip ID.
Winbond Chip ID.
Winbond Chip ID.
Winbond Chip ID.
Winbond Chip ID.
Winbond Chip ID.
slew rate control
W83194BR-619/W83194BG-619
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DESCRIPTION
DESCRIPTION
DESCRIPTION