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參數(shù)資料
| 型號： | DM9008F |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | ISA/Plug & Play Super Ethernet Contoller |
| 中文描述： | 的ISA /插頭 |
| 文件頁數(shù)： | 63/68頁 |
| 文件大?。?/td> | 403K |
| 代理商： | DM9008F |
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DM9008
ISA/Plug & Play Super Ethernet Contoller
Final
Version :DM9008-DS-F02
June 14, 2000
63
APPENDIX B
Plug and Play Function Descriptions
DM9008 Configuration Modes
DM9008 is power-on in jumperless mode.
DM9008's resource configuration information, such as I/O
base address, BROM memory base address, interrupt request
line, etc., are stored in the CONFIGA-D registers, as well as in
the PnP logical device configuration registers. Their power-up
default values may come from the contents of 9346 in PnP and
DM jumperless modes. Their values can be modified by
software via the logical device configuration registers in DM
Jumpless and PnP modes. The update values will also be
recorded to the CONFIGA-D registers. This new configuration
is only valid temporarily, and will be lost after an active PC
Hardware Reset. Permanent changes to the configuration
must be done by either changing the jumper state or the
contents of 9346. Note that the BROM size cannot be modified
temporarily.
The Plug and Play logic can work in both configuration modes
if using a DM, instead of the PnP, Initiation Key. In other words,
the DM Initiation Key is supported in all configuration modes,
whereas the PnP Initiation key is only supported in PnP mode.
By using the DM Initiation Key, the software can put DM9008 in
the PnP Config state and access the logical device
configuration registers even if DM9008 is in Jumpless mode.
The differences between the 2 configuration modes are shown
in the following table.
Configuration Mode
Resource of Power-up Value
Supported Initiation Key
DM Jumperless
9346
DM Initiation Key
Plug and Play
9346
DM and PnP Initiation Key
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