npe405h Applied Micro Circuits Corporation (AMCC), npe405h Datasheet - Page 58

• Manufacturer Part Number: npe405h
• Description: Powernp Npe405h Embedded Processor
• Manufacturer: Applied Micro Circuits Corporation (AMCC)

NPe405H – PowerNP NPe405H Embedded Processor
PERIPHERAL INTERFACE CLOCK TIMINGS
Table 13. Peripheral Interface Clock Timings
58
PCIClk input frequency (asynchronous mode)
PCIClk period (asynchronous mode)
PCIClk input high time
PCIClk input low time
EMC0MDClk output frequency
EMC0MDClk period
EMC0MDClk output high time
EMC0MDClk output low time
PHY0TxClk input frequency
PHY0TxClk period
PHY0TxClk input high time
PHY0TxClk input low time
PHY0RxClk input frequency
PHY0RxClk period
PHY0RxClk input high time
PHY0RxClk input low time
PerClk output frequency–133MHz
PerClk period–133MHz
PerClk output frequency–200MHz
PerClk period–200MHz
PerClk output frequency–266MHz)
PerClk period–266MHz
PerClk output high time
PerClk output low time
UARTSerClk input frequency (Note 1)
UARTSerClk period
UARTSerClk input high time
UARTSerClk input low time
TmrClk input frequency–133MHz
TmrClk period–133MHz
TmrClk input frequency–200MHz
TmrClk period–200MHz
TmrClk input frequency–266MHz
TmrClk period–266MHz
TmrClk input high time
TmrClk input low time
HDLCEXTxClk, HDLCEXRxClk
HDLCMPTxClk, HDLCMPRxClk
Notes:
1. T
2. In asynchronous PCI mode the minimum PCIClk frequency is 1/8 the PLB Clock. Refer to the NPe405H User’s Manual for more information.
OPB
DS2011
is the period in ns of the OPB clock. The maximum OPB clock frequency is 33.33 MHz for 133MHz parts, 50 MHz for 200MHz parts, and 66.66MHz for 266MHz parts.
Parameter
40% of nominal period
40% of nominal period
35% of nominal period
35% of nominal period
35% of nominal period
35% of nominal period
45% of nominal period
45% of nominal period
40% of nominal period
40% of nominal period
2T
T
T
Note 2
OPB
OPB
OPB
Min
400
160
160
2.5
2.5
15
40
40
30
20
15
30
20
15
–
–
–
–
–
–
–
–
0
–
+ 1
+ 1
+ 2
Revision 1.02 – November 16, 2007
60% of nominal period
60% of nominal period
55% of nominal period
55% of nominal period
60% of nominal period
60% of nominal period
1000/(2T
Note 2
33.33
66.66
33.33
66.66
8.192
2.048
Max
400
400
2.5
66
25
25
50
50
OPB
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Data Sheet
+ 2ns)
AMCC Proprietary
Units
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns