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參數(shù)資料
| 型號： | AM79C989 |
| 廠商： | Advanced Micro Devices, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Motor Driver IC; Supply Voltage Max:13.2V; Output Current Max:0.5A; Package/Case:8-SOIC; Driver Type:Motor; Leaded Process Compatible:No; Output Current:1.5A; Peak Reflow Compatible (260 C):No; Supply Voltage Min:3.8V |
| 中文描述： | 四路以太網(wǎng)交換器（QuEST的⑩） |
| 文件頁數(shù)： | 25/37頁 |
| 文件大小： | 198K |
| 代理商： | AM79C989 |
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Am79C989
25
P R E L I M I N A R Y
Summary Status Register (Reg 17)
The Summary Status Register (Reg 17) is a global reg-
ister accessible to all ports. This register is Read/Only
(R/O). The summary register allocates four bits per
each port. Each port conveys: Link Status, Duplex Sta-
tus, Auto-Negotiation Alert, and 10BASE-T MAU Error.
Table 17.
Summary Status Register (Reg 17)
Bit(s)
Name
Description
Read/
Write
Default/
Reset
15
Link Status
Port 3
1 = Link Status of port 3 is up;
0 = Link Status of port 3 is down.
R/O
0
14
Full Duplex
Port 3
1 = Port 3 is operating in full duplex mode;
0 = Port 3 is operating in half duplex mode.
R/O
0
13
Auto-Negotiation Alert
Port 3
1 = Status of Auto-Negotiation function for port 3 has changed
(i.e, new page received);
0 = Auto-Negotiation function for port 3 does not require servicing.
R/O
0
12
MAU Error
Port 3
1= 10BASE-T MAU error for port 3 summary;
0= No MAU Error on Port 3.
R/O
0
11
Link Status
Port 2
1 = Link Status of port 2 is up;
0 = Link Status of port 2 is down.
R/O
0
10
Full Duplex
Port 2
1 = Port 2 is operating in full duplex mode;
0 = Port 2 is operating in half duplex mode.
R/O
0
9
Auto-Negotiation Alert
Port 2
1 = Status of Auto-Negotiation function for port 2 has changed (i.e,
new page received);
0 = Auto-Negotiation function for port 2 does not require servicing.
R/O
0
8
MAU Error
Port 2
1= 10BASE-T MAU error for port 2 summary;
0= No MAU Error on Port 2.
R/O
0
7
Port 1
1 = Link Status of port 1 is up;
0 = Link Status of port 1 is down.
R/O
0
6
Full Duplex
Port 1
1 = Port 1 is operating in full duplex mode;
0 = Port 1 is operating in half duplex mode.
R/O
0
5
Auto-Negotiation Alert
Port 1
1 = Status of Auto-Negotiation function for port 1 has changed (i.e,
new page received);
0 = Auto-Negotiation function for port 1 does not require servicing.
R/O
0
4
MAU Error
Port 1
1= 10BASE-T MAU error for port 1 summary;
0= No MAU Error on Port 1.
R/O
0
3
Link Status
Port 0
1 = Link Status of port 0 is up;
0 = Link Status of port 0 is down.
R/O
0
2
Full Duplex
Port 0
1 = Port 0 is operating in full duplex mode;
0 = Port 0 is operating in half duplex mode.
R/O
0
1
Auto-Negotiation Alert
Port 0
1 = Status of Auto-Negotiation function for port 0 has changed (i.e,
new page received);
0 = Auto-Negotiation function for port 0 does not require servicing.
R/O
0
0
MAU Error
Port 0
1= 10BASE-T MAU error for port 0 summary;
0= No MAU Error on Port 0.
R/O
0
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| AM79C98JC | Twisted-Pair Ethernet Transceiver (TPEX) |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AM79C989JC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AM79C989JC/T | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AM79C989JCT | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Quad Ethernet Switching Transceiver (QuEST⑩) |
| AM79C98JC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Twisted-Pair Ethernet Transceiver (TPEX) |
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