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319537-003US 参数 Datasheet PDF下载

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型号: 319537-003US
PDF下载: 下载PDF文件 查看货源
内容描述: 英特尔系统控制器中心 [Intel System Controller Hub]
分类和应用: 控制器
文件页数/大小: 450 页 / 2593 K
品牌: INTEL [ INTEL ]
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Register and Memory Mapping  
5.4  
I/O Address Space  
The I/O map is divided into fixed ranges and variable ranges. Fixed ranges cannot be  
moved, but in some cases can be disabled. Variable ranges can be both moved and  
disabled.  
5.4.1  
Fixed I/O Decode Ranges  
Table 12 shows the fixed I/O decode ranges from the processor. For each port there  
may be separate behavior for reads and writes. Processor cycles that go to reserved  
ranges are internally aborted; if the cycle was a read, all 1s will be returned to the  
processor.  
Table 12.  
Fixed I/O Decode Ranges (Sheet 1 of 2)  
Port  
Size  
Read Target  
Write Target  
Can Disable?  
No  
Number (Bytes)  
20h  
24h  
28h  
2Ch  
30h  
34h  
38h  
3Ch  
40h  
43h  
50h  
53h  
61h  
63h  
65h  
67h  
70h  
71h  
72h  
73h  
74h  
75h  
76h  
77h  
84h  
88h  
8Ch  
2
2
2
2
2
2
2
2
3
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
3
8259 Master  
8259 Master  
8259 Master  
8259 Master  
8259 Master  
8259 Master  
8259 Master  
8259 Master  
8254  
8259 Master  
8259 Master  
8259 Master  
8259 Master  
8259 Master  
8259 Master  
8259 Master  
8259 Master  
8254  
No  
No  
No  
No  
No  
No  
No  
No  
None  
8254  
No  
8254  
8254  
No  
None  
8254  
No  
NMI Controller  
NMI Controller  
NMI Controller  
NMI Controller  
None  
NMI Controller1  
NMI Controller1  
NMI Controller1  
NMI Controller1  
NMI and RTC  
RTC  
No  
Yes, alias to 61h  
Yes, alias to 61h  
Yes, alias to 61h  
No  
RTC  
No  
RTC  
NMI and RTC  
RTC  
Yes, w/ 73h  
RTC  
Yes, w/ 72h  
RTC  
NMI and RTC  
RTC  
No  
No  
No  
No  
No  
No  
No  
RTC  
RTC  
NMI and RTC  
RTC  
RTC  
Internal  
Internal/LPC  
Internal/LPC  
Internal/LPC  
Internal  
Internal  
Datasheet  
65