EISA(Extended Industy Standard Architecture:扩展工业标准结构）是EISA集团为配合32位CPU而设计的总线扩展标准。它吸收了IBM微通道总线的精华，并且兼容ISA总线。但现今已被淘汰。
|
EISA总线接口卡外观 |
+--------------EISA总线定义接口卡----------+
| 元件面 |
| |
|___________ ISA-16bit __ ISA-8bit __|
||||||||||| ||||||||||||||||||| A1 正面/B1 反面
| | | | | | | | | | | | | | EISA: E1 正面/F1 反面
C1/D1
G1/H1
A,C,E,G=元件面
A,B,F,H=线路面
|
EISA总线引脚定义 |
|
Pin |
Name |
Description |
|---|---|---|
|
E1 |
CMD# |
Command Phase |
|
E2 |
START# |
Start Phase |
|
E3 |
EXRDY |
EISA Ready |
|
E4 |
EX32# |
EISA Slave Size 32 |
|
E5 |
GND |
Ground |
|
E6 |
KEY |
Access Key |
|
E7 |
EX16# |
EISA Slave Size 16 |
|
E8 |
SLBURST# |
Slave Burst |
|
E9 |
MSBURST# |
Master Burst |
|
E10 |
W/R# |
Write/Read |
|
E11 |
GND |
Ground |
|
E12 |
RES |
Reserved |
|
E13 |
RES |
Reserved |
|
E14 |
RES |
Reserved |
|
E15 |
GND |
Ground |
|
E16 |
KEY |
Access Key |
|
E17 |
BE1# |
Byte Enable 1 |
|
E18 |
LA31# |
Latchable Addressline 31 |
|
E19 |
GND |
Ground |
|
E20 |
LA30# |
Latchable Addressline 30 |
|
E21 |
LA28# |
Latchable Addressline 28 |
|
E22 |
LA27# |
Latchable Addressline 27 |
|
E23 |
LA25# |
Latchable Addressline 25 |
|
E24 |
GND |
Ground |
|
E25 |
KEY |
Access Key |
|
E26 |
LA15 |
Latchable Addressline 15 |
|
E27 |
LA13 |
Latchable Addressline 13 |
|
E28 |
LA12 |
Latchable Addressline 12 |
|
E29 |
LA11 |
Latchable Addressline 11 |
|
E30 |
GND |
Ground |
|
E31 |
LA9 |
Latchable Addressline 9 |
|
|
|
|
|
F1 |
GND |
Ground |
|
F2 |
+5V |
+5 VDC |
|
F3 |
+5V |
+5 VDC |
|
F4 |
--- |
|
|
F5 |
--- |
|
|
F6 |
KEY |
Access Key |
|
F7 |
--- |
|
|
F8 |
--- |
|
|
F9 |
+12V |
+12 VDC |
|
F10 |
M/IO# |
Memory/Input-Output |
|
F11 |
LOCK# |
Lock bus |
|
F12 |
RES |
Reserved |
|
F13 |
GND |
Ground |
|
F14 |
RES |
Reserved |
|
F15 |
BE3# |
Byte Enable 3 |
|
F16 |
KEY |
Access Key |
|
F17 |
BE2# |
Byte Enable 2 |
|
F18 |
BE0# |
Byte Enable 0 |
|
F19 |
GND |
Ground |
|
F20 |
+5V |
+5 VDC |
|
F21 |
LA29# |
Latchable Addressline 29 |
|
F22 |
GND |
Ground |
|
F23 |
LA26# |
Latchable Addressline 26 |
|
F24 |
LA24# |
Latchable Addressline 24 |
|
F25 |
KEY |
Access Key |
|
F26 |
LA16 |
Latchable Addressline 16 |
|
F27 |
LA14 |
Latchable Addressline 14 |
|
F28 |
+5V |
+5 VDC |
|
F29 |
+5V |
+5 VDC |
|
F30 |
GND |
Ground |
|
F31 |
LA10 |
Latchable Addressline 10 |
|
|
|
|
|
G1 |
LA7 |
Latchable Addressline 7 |
|
G2 |
GND |
Ground |
|
G3 |
LA4 |
Latchable Addressline 4 |
|
G4 |
LA3 |
Latchable Addressline 3 |
|
G5 |
GND |
Ground |
|
G6 |
KEY |
Access Key |
|
G7 |
D17 |
Data 17 |
|
G8 |
D19 |
Data 19 |
|
G9 |
D20 |
Data 20 |
|
G10 |
D22 |
Data 22 |
|
G11 |
GND |
Ground |
|
G12 |
D25 |
Data 25 |
|
G13 |
D26 |
Data 26 |
|
G14 |
D28 |
Data 28 |
|
G15 |
KEY |
Access Key |
|
G16 |
GND |
Ground |
|
G17 |
D30 |
Data 30 |
|
G18 |
D31 |
Data 31 |
|
G19 |
MREQx |
Master Request |
|
|
|
|
|
H1 |
LA8 |
Latchable Addressline 8 |
|
H2 |
LA6 |
Latchable Addressline 6 |
|
H3 |
LA5 |
Latchable Addressline 5 |
|
H4 |
+5V |
+5 VDC |
|
H5 |
LA2 |
Latchable Addressline 2 |
|
H6 |
KEY |
Access Key |
|
H7 |
D16 |
Data 16 |
|
H8 |
D18 |
Data 18 |
|
H9 |
GND |
Ground |
|
H10 |
D21 |
Data 21 |
|
H11 |
D23 |
Data 23 |
|
H12 |
D24 |
Data 24 |
|
H13 |
GND |
Ground |
|
H14 |
D27 |
Data 27 |
|
H15 |
KEY |
Access Key |
|
H16 |
D29 |
Data 29 |
|
H17 |
+5V |
+5 VDC |
|
H18 |
+5V |
+5 VDC |
安装 eisa 扩充卡时，您必须运行eisa 配置公用程序以避免产生配置冲突。此公用程序使您可以指定在哪一个扩充槽中插入扩充卡，并且可以从相应的 eisa配置文件中获得该扩充卡所需的系统资源信息。
现象：正在使用一个EISA系统，而且对它作了某些更改。现在，给出了一个错误信息：说第16个扩展槽存在有配置错误。
分析：任何PC机都没有16个扩展槽，出现这个故障是因为很多基于EISA的机器的一个细小的怪癖，但这个问题不是很严重，而你的硬件肯定也不会存在什么问题，所以不用对BIOS升级。