CY28439
Control Registers
Byte 0: Control Register 0
Bit
7
@Pup
Name
Description
1
1
RESERVED
SRC[T/C]4
RESERVED
6
SRC[T/C]4 Output Enable
0 = Disable (Tri-state), 1 = Enable
5
4
3
2
1
1
1
1
SRC[T/C]3
SATA[T/C]
SRC[T/C]2
SRC[T/C]1
SRC[T/C]3 Output Enable
0 = Disable (Tri-state), 1 = Enable
SATA[T/C] Output Enable
0 = Disable (Tri-state), 1 = Enable
SRC[T/C]2 Output Enable
0 = Disable (Tri-state), 1 = Enable
SRC[T/C]1 Output Enable
0 = Disable (Tri-state), 1 = Enable
1
0
1
1
RESERVED
SRC[T/C]0
RESERVED
SRC[T/C]0 Output Enable
0 = Disable (Tri-state), 1 = Enable
Byte 1: Control Register 1
Bit
@Pup
Name
Description
7
1
PCIF0
PCIF0 Output Enable
0 = Disabled, 1 = Enabled
6
5
4
1
1
1
DOT_96[T/C]
24_48M
DOT_96 MHz Output Enable
0 = Disable (Tri-state), 1 = Enabled
24_48 MHz Output Enable
0 = Disabled, 1 = Enabled
REF0
REF0 Output Enable
0 = Disabled, 1 = Enabled
3
2
0
1
RESERVED
CPU[T/C]1
RESERVED
CPU[T/C]1 Output Enable
0 = Disable (Tri-state), 1 = Enabled
1
0
1
1
CPU[T/C]0
CPU
CPU[T/C]0 Output Enable
0 = Disable (Tri-state), 1 = Enabled
PLL1 (CPU PLL) Spread Spectrum Enable
0 = Spread off, 1 = Spread on
Byte 2: Control Register 2
Bit
@Pup
Name
Description
7
1
PCI5
PCI5 Output Enable
0 = Disabled, 1 = Enabled
6
5
4
3
2
1
1
1
1
1
1
1
PCI4
PCI3
PCI2
PCI1
PCI0
PCIF2
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
PCIF2 Output Enable
0 = Disabled, 1 = Enabled
Rev 1.0,November 21, 2006
Page 5 of 21