CY28409
Byte 3: Control Register 3 (continued)
Bit
@Pup
Name
Description
5
1
PCI5
PCI4
PCI3
PCI2
PCI1
PCI0
PCI5 Output Enable
0 = Disabled, 1 = Enabled
4
3
2
1
0
1
1
1
1
1
PCI4 Output Enable
0 = Disabled, 1 = Enabled
PCI3 Output Enable
0 = Disabled, 1 = Enabled
PCI2 Output Enable
0 = Disabled, 1 = Enabled
PCI1 Output Enable
0 = Disabled, 1 = Enabled
PCI0 Output Enable
0 = Disabled, 1 = Enabled
Byte 4: Control Register 4
Bit
@Pup
Name
Description
7
0
USB_48
USB_48
PCIF2
PCIF1
PCIF0
PCIF2
PCIF1
PCIF0
USB_48 Drive Strength
0 = High drive strength, 1 = Low drive strength
6
5
4
3
2
1
0
1
0
0
0
1
1
1
USB_48 Output Enable
0 = Disabled, 1 = Enabled
Allow control of PCIF2 with assertion of PCI_STP# or SW PCI_STP
0 = Free Running, 1 = Stopped with PCI_STP#
Allow control of PCIF1 with assertion of PCI_STP# or SW PCI_STP
0 = Free Running, 1 = Stopped with PCI_STP#
Allow control of PCIF0 with assertion of PCI_STP# or SW PCI_STP
0 = Free Running, 1 = Stopped with PCI_STP#
PCIF2 Output Enable
0 = Disabled, 1 = Enabled
PCIF1 Output Enable
0 = Disabled, 1 = Enabled
PCIF0 Output Enable
0 = Disabled, 1 = Enabled
Byte 5: Control Register 5
Bit
@Pup
Name
Description
7
1
DOT_48
DOT_48 Output Enable
0 = Disabled, 1 = Enabled
6
5
1
0
Reserved
Reserved, Set = 1
3V66_4/VCH
3V66_4/VCH
3V66_3
VCH Select 66-MHz/48-MHz
0 = 3V66 mode, 1 = VCH (48-MHz) mode
4
3
2
1
0
1
1
1
1
1
3V66_4/VCH Output Enable
0 = Disabled, 1 = Enabled
3V66_3 Output Enable
0 = Disabled, 1 = Enabled
3V66_2
3V66_2 Output Enable
0 = Disabled, 1 = Enabled
3V66_1
3V66_1 Output Enable
0 = Disabled, 1 = Enabled
3V66_0
3V66_0 Output Enable
0 = Disabled, 1 = Enabled
Rev 1.0,November 22, 2006
Page 6 of 16
SPECTRALINEAR [ SPECTRALINEAR INC ]
