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參數(shù)資料
| 型號(hào)： | 82596CA |
| 廠商： | Intel Corp. |
| 英文描述： | HIGH-PERFORMANCE 32-BIT LOCAL AREA NETWORK COPROCESSOR |
| 中文描述： | 高性能的32位局域網(wǎng)協(xié)處理器 |
| 文件頁(yè)數(shù)： | 25/77頁(yè) |
| 文件大?。?/td> | 787K |
| 代理商： | 82596CA |
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82596DX/SX
The following diagram illustrates the format of the SCP.
31
16
ODD WORD
15
0
EVEN WORD
X X X X X X X X
SYSBUS
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 0FFFFF4h
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X 0FFFFF8h
A31ààààààààààààààààA24 A23
A0
ISCP ADDRESS
0FFFFFCh
A31ààààààààààààààààA24 are not checked in 82586 mode.
XààààààààààààààààààX
areas are not checked in 82586 mode; they must be 0 in all other modes.
290219–14
ISCP ADDRESSD The physical address of the ISCP. In the 82586 mode, bits A31–A24 are considered to
be zero.
Figure 15. The System Configuration Pointer
Writing the Sysbus
When writing the Sysbus byte it is important to pay attention to the byte order.
#
When a Little Endian processor is used, the Sysbus byte is located at byte address 00FFFFF6h (or address
n
a
2 if an alternative SCP address n was programmed).
#
When a processor using Big Endian byte ordering is used, the SYSBUS, alternative SCP, and ISCP ad-
dresses will be different.
#
The Sysbus byte is located at 00FFFFF7h.
#
If an alternative SCP address is programmed, the SYSBUS byte should be at byte address n
a
1.
25
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 82596DX | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:HIGH-PERFORMANCE 32-BIT LOCAL AREA NETWORK COPROCESSOR |
| 82596SX | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:HIGH-PERFORMANCE 32-BIT LOCAL AREA NETWORK COPROCESSOR |
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