参数资料
型号: PowerNP NPe405L
厂商: IBM Microeletronics
英文描述: 32-Bit Embedded Processor(32位嵌入式处理器)
中文描述: 32位嵌入式处理器(32位嵌入式处理器)
文件页数: 39/48页
文件大小: 741K
代理商: POWERNP NPE405L
Advance Information
PowerNP
TM
NPe405L Embedded Processor Data Sheet
39
Peripheral Interface Clock Timings
Parameter
Min
Max
Units
EMC0MDClk output frequency
2.5
MHz
EMC0MDClk period
400
ns
EMC0MDClk output high time
160
ns
EMC0MDClk output low time
160
ns
PHY0TxClk input frequency
2.5
25
MHz
PHY0TxClk period
40
400
ns
PHY0TxClk input high time
35% of nominal period
ns
PHY0TxClk input low time
35% of nominal period
ns
PHY0RxClk input frequency
2.5
25
MHz
PHY0RxClk period
40
400
ns
PHY0RxClk input high time
35% of nominal period
ns
PHY0RxClk input low time
35% of nominal period
ns
PerClk output frequency–200MHz (for synchronous slaves)
50
MHz
PerClk period–200MHz
20
ns
PerClk output frequency–266MHz (for synchronous slaves)
66
PerClk period–266MHz
15
PerClk output high time
50% of nominal period
66% of nominal period
ns
PerClk output low time
33% of nominal period
50% of nominal period
ns
UARTSerClk input frequency
(Note 1)
1000/(2T
OPB
+2ns)
MHz
UARTSerClk period
2T
OPB
+2
T
OPB
+1
T
OPB
+1
ns
UARTSerClk input high time
ns
UARTSerClk input low time
ns
TmrClk input frequency–200MHz
50
MHz
TmrClk period–200MHz
20
ns
TmrClk input frequency–266MHz
66
TmrClk period–266MHz
15
TmrClk input high time
40% of nominal period
60% of nominal period
ns
TmrClk input low time
40% of nominal period
60% of nominal period
ns
Notes:
1. T
OPB
is the period in ns of the OPB clock. The internal OPB clock runs at 1/2 the frequency of the PLB clock. The maximum OPB
clock frequency is 50 MHz for 200MHz parts and 66MHz.for 266MHz parts.
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