PPC440GX-3FF533C AMCC [Applied Micro Circuits Corporation], PPC440GX-3FF533C Datasheet - Page 68

• Manufacturer Part Number: PPC440GX-3FF533C
• Description: Power PC 440GX Embedded Processor
• Manufacturer: AMCC [Applied Micro Circuits Corporation]

440GX – Power PC 440GX Embedded Processor
68
Peripheral Interface Clock Timings (Continued)
TmrClk input frequency
TmrClk period
TmrClk input high time
TmrClk input low time
Notes:
1. T
2. When the PCI-X interface is used to support a legacy PCI interface, the maximum PCIXClk frequency is 66.66MHz.
PLB clock. The maximum OPB clock frequency is 83.33 MHz. Refer to the Clocking chapter of the PPC440GX Embedded
Processor User’s Manual for details.
OPB
is the period in ns of the OPB clock. The internal OPB clock runs at an integral divisor ratio of the frequency of the
Parameter
40% of nominal period
40% of nominal period
Min
10
–
60% of nominal period
60% of nominal period
Revision 1.15 – August 30, 2007
Max
100
–
Data Sheet
Units
MHz
ns
ns
ns
Notes
AMCC