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參數(shù)資料
| 型號(hào)： | RTL8019AS |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Realtek Full-Duplex Ethernet Controller with Plug and Play Function (RealPNP) |
| 中文描述： | 瑞昱全雙工以太網(wǎng)控制器即插即用功能（RealPNP） |
| 文件頁數(shù)： | 38/50頁 |
| 文件大?。?/td> | 992K |
| 代理商： | RTL8019AS |
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8019AS.doc
2001-05-10
·R￥bééa￥÷|3--¤￥q
SPECIFICATION
RTL8019AS
38
TAG
TAG
TAG
TAG
6.4. Boot ROM
Whether a EPROM or flash memory is used as the BROM, RTL8019AS's BROM read operation is still the
same as RTL8019's. The supported BROM size is the same, too.
The write operation of a flash memory is much like the read except that a SMEMWB command is issued
instead of SMEMRB. The block diagram below shows the application when an 128k*8bit flash memory (e.g.
29F010) is used as the BROM.
Item byte
Compatible ID0-3
I/O Format
Item byte
I/O information
Min. I/O base bits 7-0
Min. I/O base bits 15-8
Max. I/O base bits 7-0
Max. I/O base bits 15-8
Base alignment
Range length
IRQ Format
Item byte
IRQ mask bits 7-0
IRQ mask bits 15-8
IRQ information
Memory Format (optional)
Item byte
Length bits 7-0
Length bits 15-8
Memory information
Min. base bits 15-8
Min. base bits 23-16
Max. base bits 15-8
Max. base bits 23-16
Base alignment bits 7-0
Base alignment bits 15-8 40H
Range length bits 15-8
Range length bits 23-16
END Tag
Item byte
Checksum
1CH
41H, D0H, 80H, D6H
47H
00H
20H
02H
80H
03H
20H
20H
Length: fixed
8 bytes
23H
38H
9EH
01H
Length: fixed
4 bytes
Length: fixed
This example uses 16k-byte BROM.
12 bytes
81H
09H
00H
40H
00H
0CH
C0H
0DH
00H
40H
00H
79H
2's complement of the sum of all the above resource data
i.e. 2's complement of (0AH+10H+10H+.......+79H)
Length: fixed
2 bytes
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