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CY28408 Datasheet(PDF) 5 Page - Cypress Semiconductor

Part No. CY28408
Description  Clock Synthesizer with Differential CPU Outputs
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Maker  CYPRESS [Cypress Semiconductor]
Homepage  http://www.cypress.com
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CY28408 Datasheet(HTML) 5 Page - Cypress Semiconductor

 
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CY28408
Document #: 38-07617 Rev. **
Page 5 of 19
1
1
CPUT/C1
CPUT/C1 Output Control
1 = enabled, 0 = three-state CPUT/C1
This is a Read and Write control bit.
0
1
CPUT/C0
CPUT/C0 Output Control
1 = enabled, 0 = three-state CPUT/C0
This is a Read and Write control bit.
Byte 2: PCI Clock Control Register (all bits are read- and write-functional)
Bit
@Pup
Name
Description
7
0
REF
REF Output Control.
0 = high strength, 1 = low strength
6
1
PCI6
PCI6 Output Control
1 = enabled, 0 = forced LOW
5
1
PCI5
PCI5 Output Control
1 = enabled, 0 = forced LOW
4
1
PCI4
PCI4 Output Control
1 = enabled, 0 = forced LOW
3
1
PCI3
PCI3 Output Control
1 = enabled, 0 = forced LOW
2
1
PCI2
PCI2 Output Control
1 = enabled, 0 = forced LOW
1
1
PCI1
PCI1 Output Control
1 = enabled, 0 = forced LOW
0
1
PCI0
PCI0 Output Control
1 = enabled, 0 = forced LOW
Byte 3: PCI_F Clock and 48M Control Register (all bits are read- and write-functional)
Bit
@Pup
Name
Description
7
1
48M_DOT
48M_DOT Output Control
1 = enabled, 0 = forced LOW
6
1
48M_USB
48M_USB Output Control
1 = enabled, 0 = forced LOW
5
0
PCI_STP#, control of PCI_F2.
0 = Free Running, 1 = Stopped when PCI_STP# is LOW
4
0
PCI_STP#, control of PCI_F1.
0 = Free Running, 1 = Stopped when PCI_STP# is LOW
3
0
PCI_STP#, control of PCI_F0.
0 = Free Running, 1 = Stopped when PCI_STP# is LOW
2
1
PCI_F2
PCI_F2 Output Control
1 = running, 0 = forced LOW
1
1
PCI_F1
PCI_F1 Output Control
1 = running, 0 = forced LOW
0
1
PCI_F0
PCI_F0 Output Control
1 = running, 0 = forced LOW
Byte 1: CPU Clock Register (continued)
Bit
@Pup
Name
Description


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