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6702PXH 参数 Datasheet PDF下载

6702PXH图片预览
型号: 6702PXH
PDF下载: 下载PDF文件 查看货源
内容描述: 64位PCI中枢 [64-bit PCI Hub]
分类和应用: PC
文件页数/大小: 214 页 / 2554 K
品牌: INTEL [ INTEL ]
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Signal Description  
Table 2-16. PCI/PCI-X Mode and Frequency Encoding (Sheet 2 of 2)  
PAPCIXCAP  
(on the card)  
PCI Capability  
PCI-X Capability  
PAM66EN  
PA133EN  
66 MHz  
PCI-X 133 MHz  
No Connect  
Pull-up  
Capacitor to GND  
Once the Intel® 6702PXH 64-bit PCI Hub identifies the capabilities of the PCI bus devices, it  
drives the initialization pattern on the PADEVSEL#, PASTOP#, PATRDY#, PAFRAME# and  
PAIRDY# pins as per Table 2-17 to initialize the PCI bus devices to the proper mode and  
frequency.  
Table 2-17. PCI-X Initialization Pattern Driven by the Intel® 6702PXH 64-bit PCI Hub  
Clock Period  
(ns)  
Clock Freq  
(MHz)  
PAPERR#  
PADEVSEL#  
PASTOP#  
PATRDY#  
Mode  
Max  
Min  
Min  
Max  
Deasserted  
Deasserted  
Deasserted Deasserted  
PCI  
PCI  
30  
15  
15  
10  
7.5  
0
33  
33  
66  
30  
20  
15  
10  
Deasserted  
Deasserted  
Deasserted  
Deasserted  
Deasserted  
Deasserted  
Deasserted  
Deasserted  
Deasserted  
Deasserted  
Asserted  
Deasserted  
Asserted  
Asserted  
Asserted  
PCI-X Mode 1  
50  
66  
Deasserted PCI-X Mode 1  
66  
100  
133  
Asserted PCI-X Mode 1  
100  
Deasserted Deasserted PCI-X Mode 1 Reserved1  
Asserted  
Deasserted  
Asserted  
Asserted  
Asserted  
Deasserted PCI-X Mode 1 Reserved1  
Asserted  
PCI-X Mode 1 Reserved1  
PCI-X Mode 1 Reserved1  
Asserted  
Asserted  
NOTE: The Intel® 6702PXH 64-bit PCI Hub never drives these patterns on the rising edge of PAPCIRST#  
signal; however, these patterns may appear before the signals settle to a steady value at the rising edge  
of PAPCIRST#.  
2.12.2  
Transaction Types  
2.12.2.1  
PCI Transactions  
Table 2-18 lists the PCI transactions supported by the Intel® 6702PXH 64-bit PCI Hub. As a PCI  
master, the Intel® 6702PXH 64-bit PCI Hub has full access to the 64-bit address space and can  
generate dual address cycles (DAC). As a target, the Intel® 6702PXH 64-bit PCI Hub can accept  
dual address cycles up to the full 64-bit address space. The Intel® 6702PXH 64-bit PCI Hub  
supports linear increment address mode only for bursting memory transfers (indicated when the  
low 2 address bits are equal to 0). If either of these address bits is nonzero, the Intel® 6702PXH  
64-bit PCI Hub disconnects the transaction after the first data transfer.  
The Intel® 6702PXH 64-bit PCI Hub decodes all PCI cycles in medium PADEVSEL# timing.  
Intel® 6702PXH 64-bit PCI Hub Datasheet  
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