PPC440GRX-NPAFFFTS AMCC [Applied Micro Circuits Corporation], PPC440GRX-NPAFFFTS Datasheet - Page 73

• Manufacturer Part Number: PPC440GRX-NPAFFFTS
• Description: PowerPC 440GRx Embedded Processor
• Manufacturer: AMCC [Applied Micro Circuits Corporation]

Revision 1.08 – October 15, 2007
I/O Specifications
Table 20. Peripheral Interface Clock Timings
AMCC Proprietary
Preliminary Data Sheet
PCIClk frequency (asynchronous mode)
PCIClk period (asynchronous mode)
PCIClk high time
PCIClk low time
GMCMDClk frequency
GMCMDClk period
GMCMDClk high time
GMCMDClk low time
GMCTxClk frequency MII
GMCTxClk period MII
GMCTxClk high time
GMCTxClk low time
GMCRxClk frequency MII
GMCRxClk period MII
GMCRxClk high time
GMCRxClk low time
GMCRefClk frequency
GMCRefClk period
GMCRefClk high time
GMCRefClk low time
PerClk (and OPB Clock) frequency (for ext. master or sync.
slaves)
GMCRefClk Edge stability (cycle-to-cycle jitter)
GMCRefClk Slew Rate
PerClk period
PerClk high time
PerClk low time
UARTSerClk frequency
UARTSerClk period
UARTSerClk high time
UARTSerClk low time
Parameter
40% of nominal period
40% of nominal period
35% of nominal period
40% of nominal period
40% of nominal period
50% of nominal period
33% of nominal period
35% of nominal period
35% of nominal period
35% of nominal period
440GRx – PPC440GRx Embedded Processor
33.33MHz
2T
T
T
OPB
OPB
OPB
Min
400
160
160
2.5
2.5
15
40
40
12
–
–
–
8
–
2
–
1
1
1
+1
+1
+2
60% of nominal period
60% of nominal period
60% of nominal period
60% of nominal period
66% of nominal period
50% of nominal period
1000 / (2T
66.66
83.33
+0.15
Max
400
400
125
2.5
25
25
30
–
–
–
–
–
–
–
–
–
–
–
–
–
OPB
1
+2ns)
Units
MHz
MHz
MHz
MHz
MHz
MHz
MHz
V/ns
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
2
2
1
1
1
1
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