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參數資料
| 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： | 四路以太網交換器（QuEST的⑩） |
| 文件頁數： | 24/37頁 |
| 文件大?。?/td> | 198K |
| 代理商： | AM79C989 |
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24
Am79C989
P R E L I M I N A R Y
Interrupt Status and Enable Register (Reg 16)
Interrupt Status and Enable Register (Reg 16) contains
Read/Write (R/W), Read/Only (R/O), or Cleared on
Read (COR) bits. This register is shared across all
ports.
Table 16.
Interrupt Status and Enable Register (Reg 16)
Bit(s)
Name
Description
Read/
Write
Default/
Reset
15:13
Reserved
Written and read as zero.
R/O
0
12
Link Status Change
Interrupt Enable
1 = Link Status Change Interrupt drives the QINT pin;
0 = The Interrupt is masked.
R/W
0
11
Duplex Change
Interrupt Enable
1 = Duplex Change Interrupt drives the QINT pin;
0 = The Interrupt is masked.
R/W
0
10
Auto-Negotiation
Change
Interrupt Enable
1 = Auto-Negotiation Change Interrupt drives the QINT pin (i.e.,
new page received);
0 = The Interrupt is masked.
R/W
0
9
MAU Error
Interrupt Enable
1 = MAU Error Interrupt drives the QINT pin;
0 = The Interrupt is masked.
R/W
0
8
Global
Interrupt Enable
1 = Any Interrupt drives the QINT pin;
0 = The Interrupt is masked.
R/W
0
7:5
Reserved
Written and read as zero.
R/O
0
4
Link Status Change
Interrupt
1 = Link Status changed on one of the 4 ports;
0 = No change in Link Status.
Register bit is cleared on Read.
R/O, COR
0
3
Duplex Change
Interrupt
1 = Duplex mode changed on one of the 4 ports;
0 = Indicates no change in Duplex mode.
Register bit is cleared on Read.
R/O, COR
0
2
Auto-Negotiation
Change
Interrupt
1= Auto-Negotiation status has changed on one of the 4 ports;
0 = Indicates no change.
Register bit is Cleared on Read.
R/O, COR
0
1
MAU Error
Interrupt
1 = A MAU error has occurred on one of the 4 ports; set on any
error bit in the Status Register (Reg 19) for any port;
0 = Indicates no MAU errors have occurred.
Register bit is cleared on Read.
R/O, COR
0
0
Global
Interrupt
1 = Change in status of any of the above interrupts;
0 = No Interrupt condition.
Register bit is Cleared on Read.
R/O, COR
0
相關PDF資料 |
PDF描述 |
|---|---|
| AM79C989JC | Quad Ethernet Switching Transceiver (QuEST⑩) |
| AM79C989JCT | Quad Ethernet Switching Transceiver (QuEST⑩) |
| AM79C98 | Twisted-Pair Ethernet Transceiver (TPEX) |
| AM79C98JC | Twisted-Pair Ethernet Transceiver (TPEX) |
| AM79C98PC | Twisted-Pair Ethernet Transceiver (TPEX) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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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