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PPC440SP-AFC667C 参数 Datasheet PDF下载

PPC440SP-AFC667C图片预览
型号: PPC440SP-AFC667C
PDF下载: 下载PDF文件 查看货源
内容描述: 的PowerPC 440SP嵌入式处理器 [PowerPC 440SP Embedded Processor]
分类和应用: PC
文件页数/大小: 85 页 / 1264 K
品牌: AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
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Revision 1.23 - Sept 26, 2006  
Data Sheet  
PowerPC 440SP Embedded Processor  
I/O Specifications  
Table 13. Peripheral Interface Clock Timings  
Parameter  
PCIXxClk input frequency (asynchronous mode)  
PCIXxClk period (asynchronous mode)  
PCIXxClk input high time  
PCIXxClk input low time  
Min  
Max  
Units  
MHz  
ns  
Notes  
133.33  
2
7.5  
40% of nominal period  
60% of nominal period  
ns  
40% of nominal period  
60% of nominal period  
ns  
EMCMDClk output frequency  
EMCMDClk period  
2.5  
MHz  
ns  
400  
EMCMDClk output high time  
EMCMDClk output low time  
EMCTxClk input frequency  
EMCTxClk period  
160  
ns  
160  
ns  
2.5  
25  
MHz  
ns  
40  
400  
EMCTxClk input high time  
EMCTxClk input low time  
EMCRxClk input frequency  
EMCRxClk period  
35% of nominal period  
ns  
35% of nominal period  
ns  
2.5  
25  
MHz  
ns  
40  
400  
EMCRxClk input high time  
EMCRxClk input low time  
PerClk output frequency (for sync. slaves)  
PerClk period  
35% of nominal period  
ns  
35% of nominal period  
ns  
83.33  
MHz  
ns  
12  
50% of nominal period  
33% of nominal period  
PerClk output high time  
66% of nominal period  
50% of nominal period  
1000/(2TOPB+2ns)  
ns  
PerClk output low time  
ns  
UARTSerClk input frequency  
MHz  
1
1
1
1
2TOPB+2  
UARTSerClk period  
ns  
ns  
TOPB+1  
UARTSerClk input high time  
TOPB+1  
UARTSerClk input low time  
TmrClk input frequency  
TmrClk period  
ns  
MHz  
ns  
100  
10  
TmrClk input high time  
TmrClk input low time  
Notes:  
40% of nominal period  
40% of nominal period  
60% of nominal period  
60% of nominal period  
ns  
ns  
1. TOPB is the period in ns of the OPB clock. The internal OPB clock runs at an integral divisor ratio of the frequency of  
the PLB clock. The maximum OPB clock frequency is 83.33 MHz. Refer to the Clocking chapter of the PPC440SP  
Embedded Processor User’s Manual for details.  
2. When the PCI-X interface is used to support a legacy PCI interface, the maximum PCIXClk frequency is 66.66MHz.  
70  
AMCC Proprietary  
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