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參數(shù)資料
| 型號： | AM79C874VC |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | 網(wǎng)絡(luò)接口 |
| 英文描述： | NetPHY-1LP Low Power 10/100-TX/FX Ethernet Transceiver |
| 中文描述： | DATACOM, ETHERNET TRANSCEIVER, PQFP80 |
| 封裝： | 12 X 12 MM, PLASTIC, MO-136BAM, TQFP-80 |
| 文件頁數(shù)： | 38/60頁 |
| 文件大?。?/td> | 869K |
| 代理商： | AM79C874VC |
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38
Am79C874
P R E L I M I N A R Y
Power/Loopback Register (Register 19)
Table 22.
Power/Loopback Register (Register 19)
Reg
Bit
Name
Description
Read/
Write
Default
19
14:7
Reserved
RW
00
19
6
TP125
Transmit transformer ratio selection:
1 = 1.25:1
0 = 1:1
The default value of this bit is controlled by reset-read value of pin
20.
RW
0
19
5
Low Power Mode
1 = Enable advanced power saving mode.
0 = Disable advanced power saving mode
Note: Under normal operating conditions, this mode should never
be disabled. Power dissipation will exceed data sheet values, as
circuitry for both 10 Mbps and 100 Mbps will be turned on.
RW
1
19
4
Test Loopback
1 = Enable test loopback. Data will be transmitted from MII
interface to clock recovery and loopback to MII received data.
RW
0
19
3
Digital loopback
1 = Enable loopback.
0 = Normal operation.
RW
0
19
2
LP_LPBK
1 = Enable link pulse loopback.
0 = Normal operation.
RW
0
19
1
NLP Link Integrity
Test
1 = In Auto-Negotiation test mode, send NLP instead of FLP in
order to test NLP receive integrity.
0 = Sending FLP in Auto-Negotiation test mode.
RW
0
19
0
Reduce Timer
1 = Reduce time constant for Auto-Negotiation timer.
0 = Normal operation.
RW
0
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PDF描述 |
|---|---|
| AM79C875 | NetPHY⑩ 4LP Low Power Quad 10/100-TX/FX Ethernet Transceiver |
| AM79C875KC | NetPHY⑩ 4LP Low Power Quad 10/100-TX/FX Ethernet Transceiver |
| AM79C875KI | NetPHY⑩ 4LP Low Power Quad 10/100-TX/FX Ethernet Transceiver |
| AM79C901AJC | HomePHY Single-Chip 1/10 Mbps Home Networking PHY |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM79C874VD | 制造商:Advanced Micro Devices 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP 制造商:AMD (Advanced Micro Devices) 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP |
| AM79C874VF | 制造商:Advanced Micro Devices 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP 制造商:AMD (Advanced Micro Devices) 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP |
| AM79C874VI | 制造商:Advanced Micro Devices 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP 制造商:AMD (Advanced Micro Devices) 功能描述:PHY 1-CH 10Mbps/100Mbps 80-Pin TQFP |
| AM79C874WW | 制造商:Advanced Micro Devices 功能描述:8" WAFER, DIE IN WAFER FORM, SINGLE PORT ETHERNET 10/100 - Trays |
| AM79C875 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:NetPHY⑩ 4LP Low Power Quad 10/100-TX/FX Ethernet Transceiver |
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