cy28446 Cypress Semiconductor Corporation., cy28446 Datasheet - Page 7

• Manufacturer Part Number: cy28446
• Description: Clock Generator For Intel Calistoga Chipset
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 001-00168 Rev *D
Byte 3: Control Register 3
Byte 4: Control Register 4
Byte 5: Control Register 5
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
@Pup
@Pup
@Pup
0
0
0
0
0
0
0
0
1
0
0
1
0
1
1
1
0
0
0
0
0
0
0
0
DOT96[T/C]
CPU[T/C]2
CPU[T/C]1
CPU[T/C]0
CPU[T/C]2
CPU[T/C]1
CPU[T/C]0
CPU[T/C]2
CPU[T/C]1
CPU[T/C]0
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
SRC[T/C]
Reserved
Reserved
Reserved
Name
PCIF0
Name
SRC7
SRC5
SRC2
Name
Allow control of SRC[T/C]7 with assertion of OEB#
0 = Free running, 1 = Stopped with OEB#
Reserved set to 0
Allow control of SRC[T/C]5 with assertion of OEB#
0 = Free running, 1 = Stopped with OEB#
Reserved set to 0
Reserved set to 0
Allow control of SRC[T/C]2 with assertion of OEB#
0 = Free running, 1 = Stopped with OEB#
Reserved set to 0
Reserved set to 0
Reserved set to 1
DOT PWRDWN Drive Mode
0 = Driven in PWRDWN, 1 = Tri-state
Reserved set to 0
Reserved set to 1
Allow control of PCIF0 with assertion of SW and HW PCI_STP#
0 = Free running, 1 = Stopped with PCI_STP#
Allow control of CPU[T/C]2 with assertion of CPU_STP#
0 = Free running, 1 = Stopped with CPU_STP#
Allow control of CPU[T/C]1 with assertion of CPU_STP#
0 = Free running, 1 = Stopped with CPU_STP#
Allow control of CPU[T/C]0 with assertion of CPU_STP#
0 = Free running, 1 = Stopped with CPU_STP#
Reserved set to 0
CPU[T/C]2 Stop Drive Mode
0 = Driven when CPU_STP# asserted, 1 = Tri-state when CPU_STP#
asserted
CPU[T/C]1 Stop Drive Mode
0 = Driven when CPU_STP# asserted, 1 = Tri-state when CPU_STP#
asserted
CPU[T/C]0 Stop Drive Mode
0 = Driven when CPU_STP# asserted, 1 = Tri-state when CPU_STP#
asserted
SRC[T/C] PWRDWN Drive Mode
0 = Driven when PD asserted, 1 = Tri-state when PD asserted
CPU[T/C]2 PWRDWN Drive Mode
0 = Driven when PD asserted, 1 = Tri-state when PD asserted
CPU[T/C]1 PWRDWN Drive Mode
0 = Driven when PD asserted, 1 = Tri-state when PD asserted
CPU[T/C]0 PWRDWN Drive Mode
0 = Driven when PD asserted, 1 = Tri-state when PD asserted
Description
Description
Description
CY28446
Page 7 of 21
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