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參數(shù)資料
| 型號(hào)： | AM79C875 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | NetPHY⑩ 4LP Low Power Quad 10/100-TX/FX Ethernet Transceiver |
| 中文描述： | NetPHY⑩4LP的低功耗四10/100-TX/FX以太網(wǎng)收發(fā)器 |
| 文件頁(yè)數(shù)： | 47/48頁(yè) |
| 文件大?。?/td> | 2480K |
| 代理商： | AM79C875 |
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Am79C875
47
B4.5) Full Duplex operation with Auto-Negotiation Disabled
SYMPTOM:
If Auto-Negotiation is disabled, the device cannot be pin-strapped to full-duplex. LEDDPX[2]/
DPLX (Pin 41) should set the duplex at reset if LEDACT_LINK/ANEGA (Pin 39) is LOW at re-
set. Instead, all 4 ports are half-duplex regardless of the setting of Pin 41.
IMPLICATION:
This is a minor issue which should not affect normal operation. Auto-Negotiation operation is
usually set by default in systems today so that both link partners can operate at the highest set-
ting (speed and duplex). Very rarely do systems rely on Parallel Detect to set the speed of the
link. Note that RMII operation is by definition, full-duplex.
WORKAROUND:
Full-duplex operation must be set through management pins, Register 0, bit 8.
STATUS:
This errata will not be fixed.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| AM79C901AJCT | HomePHY Single-Chip 1/10 Mbps Home Networking PHY |
| AM79C901AJI | HomePHY Single-Chip 1/10 Mbps Home Networking PHY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM79C875KC | 制造商:Advanced Micro Devices 功能描述:PHY 4-CH 10Mbps/100Mbps 100-Pin PQR 制造商:AMD (Advanced Micro Devices) 功能描述:PHY 4-CH 10Mbps/100Mbps 100-Pin PQR |
| AM79C875KD | 制造商:Advanced Micro Devices 功能描述:PHY 4-CH 10Mbps/100Mbps 100-Pin PQR 制造商:Advanced Micro Devices 功能描述:NPD IC OPN ETHERNET TRANSCEIVER 制造商:AMD (Advanced Micro Devices) 功能描述:PHY 4-CH 10Mbps/100Mbps 100-Pin PQR |
| AM79C875KF | 制造商:Advanced Micro Devices 功能描述:PHY 4-CH 10Mbps/100Mbps 100-Pin PQR 制造商:AMD (Advanced Micro Devices) 功能描述:PHY 4-CH 10Mbps/100Mbps 100-Pin PQR |
| AM79C875KI | 制造商:Advanced Micro Devices 功能描述:PHY 4-CH 10Mbps/100Mbps 100-Pin PQR 制造商:AMD (Advanced Micro Devices) 功能描述:PHY 4-CH 10Mbps/100Mbps 100-Pin PQR |
| AM79C90 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:CMOS Local Area Network Controller for Ethernet (C-LANCE) |
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