参数资料
型号: 440EPX
厂商: Applied Micro Circuits Corp.
英文描述: PowerPC 440EPx Embedded Processor
中文描述: 嵌入式处理器的PowerPC 440EPx
文件页数: 74/94页
文件大小: 738K
代理商: 440EPX
440EPx – PPC440EPx Embedded Processor
Preliminary Data Sheet
76
AMCC Proprietary
Revision 1.26 – October 15, 2007
I/O Specifications
Table 19. Peripheral Interface Clock Timings (Sheet 1 of 3)
Parameter
Min
Max
Units
Notes
PCIClk frequency (asynchronous mode)
66.66
MHz
PCIClk period (asynchronous mode)
15
ns
PCIClk high time
40% of nominal period
60% of nominal period
ns
PCIClk low time
40% of nominal period
60% of nominal period
ns
GMCMDClk frequency
2.5
MHz
GMCMDClk period
400
ns
GMCMDClk high time
160
ns
GMCMDClk low time
160
ns
GMCTxClk frequency MII
2.5
25
MHz
GMCTxClk period MII
40
400
ns
GMCTxClk high time
35% of nominal period
ns
GMCTxClk low time
35% of nominal period
ns
GMCRxClk frequency MII
2.5
25
MHz
GMCRxClk period MII
40
400
ns
GMCRxClk high time
35% of nominal period
ns
GMCRxClk low time
35% of nominal period
ns
GMCRefClk frequency
125
MHz
GMCRefClk period
8
MHz
GMCRefClk high time
40% of nominal period
60% of nominal period
ns
2
GMCRefClk low time
40% of nominal period
60% of nominal period
ns
2
GMCRefClk Edge Stability (cycle-to-cycle jitter)
+0.15
ns
2
GMCRefClk Slew Rate
2
V/ns
2
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