CY28551LFXC Silicon Laboratories Inc, CY28551LFXC Datasheet - Page 12

• Manufacturer Part Number: CY28551LFXC
• Description: Clock Generators & Support Products Universal System Clk Intel AMD SiS Via
• Manufacturer: Silicon Laboratories Inc

Specifications of CY28551LFXC

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Rev 1.1, Faburary 1, 2008
Byte 16: Control Register 16
Byte 17: Control Register 17
Byte 18: Control Register 18
Table 5. Crystal Recommendations
Bit
Bit
Bit
14.31818 MHz
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Frequency
(Fund)
@Pup
@Pup
@Pup
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Type
Type
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Cut
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
AT
Loading Load Cap
Parallel
Prog_PCIE_EN
PCIE_DAF_N7
PCIE_DAF_N6
PCIE_DAF_N5
PCIE_DAF_N4
PCIE_DAF_N3
PCIE_DAF_N2
PCIE_DAF_N1
PCIE_DAF_N0
Prog_CPU_EN
RESET_I_EN
Recovery N7
Recovery N6
Recovery N5
Recovery N4
Recovery N3
Recovery N2
Recovery N1
Recovery N0
Autorecovery
Recovery N8
Watchdog
PCIE_N8
FS[D:A]
DF_EN
Name
Name
Name
20 pF
0.1 mW
Watchdog Recovery Bit
Watchdog Recovery Bit
Watchdog Recovery Bit
Watchdog Recovery Bit
Watchdog Recovery Bit
Watchdog Recovery Bit
Watchdog Recovery Bit
Watchdog Recovery Bit
PCI-E Dial-A-Frequency Bit N8
FS_Override
RESET_I# Enable
Programmable SRC Frequency Enable
Programmable CPU Frequency Enable
Watchdog Recovery Bit
The PCIE_DAF_N[8:0] configures the PCIE frequency for
Dial-A-Frequency
0 = Select operating frequency by FS(D:A) input pins
1 = Select operating frequency by FSEL_(3:0) settings
Dynamic Frequency for CPU Frequency Enable
0 = Disable, 1 = Enable
0 = Disable, 1 = Enable
0 = Disable, 1 = Enabled
0 = Disable, 1 = Enable
Watchdog Autorecovery Mode
0 = Disable (Manual), 1= Enable (Auto)
(max.)
Drive
Shunt Cap
(max.)
5 pF
Motional
0.016 pF
(max.)
Description
Description
Description
Tolerance
35 ppm
(max.)
Stability
30 ppm
(max.)
CY28551
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(max.)
Aging
5 ppm