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參數(shù)資料
| 型號(hào)： | VT86C926 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | AMAZON PCI ETHERNET CONTROLLER |
| 中文描述： | 亞馬遜的PCI以太網(wǎng)控制器 |
| 文件頁(yè)數(shù)： | 9/24頁(yè) |
| 文件大?。?/td> | 87K |
| 代理商： | VT86C926 |
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VIA T
ECHNOLOGIES
, I
NC
.
P
RELIMINARY
VT86C926
9
6.
EEPROM I
NTERFACE AND
P
ROGRAMMING
VT86C926 uses an 93C46 to store configuration data and Ethernet address.
6
.1. EEPROM Contents
D15
D0
3FH
.
.
.
.
.
.
10H
0FH
0EH
Reserved for 93C46
.
.
.
.
.
.
.
73H
Conf. B
.
Reserved
.
57H
SUBVID1
.
Reserved
.
Checksum
Ethernet Address 5
Ethernet Address 3
Ethernet Address 1
Reserved for 93C46
.
.
.
.
.
.
.
Conf. C
Conf. A
.
Reserved
.
42H
SUBVID0
.
Reserved
.
Board ID
Ethernet Address 4
Ethernet Address 2
Ethernet Address 0
08H
07H
03H
02H
01H
00H
Note 1.
The word on location 03H is optional to user's application requirement.
Note 2.
Programming 73H into the upper address is required to protect the Ethernet address from being destroyed accidentally.
6.2.
Emulated PROM map for NE2000 16-bit mode (WTS=1)
D15
D0
1EH
1CH
00
00
.
00
.
00
00
00
00
00
00
00
00
57H
(DWID=1)
or
42H
(DWID=0)
57H
(DWID=1)
or
42H
(DWID=0)
.
Reserved
.
Checksum
Board ID
Ethernet Address 5
Ethernet Address 4
Ethernet Address 3
Ethernet Address 2
Ethernet Address 1
Ethernet Address 0
0EH
0CH
0AH
08H
06H
04H
02H
00H
Note 1.
The address shown above on the left side is the Remote DMA Address.
Note 2.
The jumper DWID will determine the contents of the upper bytes. The software uses the upper bytes to distinguish the data
width of the system bus interface to be used.
Note 3.
During the initialization of the software driver, the program should set WTS to 1 and try 8-bit I/O instruction to get the
PROM contents (since data width is unknown). Then the program should set the WTS bit of DCR to the value revealed on
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