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參數(shù)資料
| 型號(hào)： | 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)： | 27/68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
27
Card Control Registers
Index
Name
Type
Definition
00H
Set RD_DATA port
W
The location of the READ_DATA port is determined by
writing to this register. Bits[7:0] become ISA I/O read port
address bits[9:2]. Address bits[1:0] of the READ_DATA port
are always1
01H
Serial Isolation
R
A read to this register causes a PnP card in the Isolation state
to compare one bit of the card's serial ID. This process is
described in more detail on page 34
02H
Config Control
W
Bit[0] - Reset command
Setting this bit will reset all logical devices and restore
configuration registers to their power-up values
The CSN is preserved
Bit[1] - Wait for Key command
Setting this bit makes the PnP card return to the Wait for
Key state. The CSN is preserved
Bit[2] - PnP Reset CSN command
Setting this bit will reset the card's CSN to 0
Note that the hardware will automatically clear the bits
without any need for software to clear them
03H
Wake[CSN]
W
A write to this register will cause all cards that have a CSN
that matches the write data[7:0] to go from the Sleep state to
either the 1) Isolation state if the write data for this command
is zero, or 2) Config state if the write data is not zero
04H
Resource Data
R
A read from this register reads the next byte of resource data.
The Status register must be polled until bit[0] is set before this
register may be read
05H
Status
R
Bit[0], when set, indicates it is O.K. to read the next data byte
from the Resource Data register
06H
Card Select Numbe
(CSN)
R/W
A write to this register sets a card's CSN. The CSN's value is
uniquely assigned to each ISA PnP card after the serial
identification process so that each card may be individually
selected during a Wake[CSN] command
07H
Logical Device
R
00H (Only one logical device in DM9008)
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