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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LAN89730 датащи(PDF) 83 Page - Microchip Technology |
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LAN89730 датащи(HTML) 83 Page - Microchip Technology |
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83 / 218 page  2013-2015 Microchip Technology Inc. DS60001348A-page 83 LAN89730 Note 4-25 The device’s 10/100 PHY internal CRS signal operates in two modes: Active and Low. When in Active mode, the internal CRS will transition high and low upon line activity, where a high value indicates a carrier has been detected. In Low mode, the internal CRS stays low and does not indicate carrier detection. The internal CRS signal and No Carrier (bit 10 of the TX Status Word) cannot be used as a verification method of transmitted packets when transmitting in 10/100 Mbps full-duplex mode. TABLE 4-55: CRS BEHAVIOR Mode Speed Duplex Activity CRS Behavior Note 4-25 Manual 10 Mbps Half-Duplex Transmitting Active Manual 10 Mbps Half-Duplex Receiving Active Manual 10 Mbps Full-Duplex Transmitting Low Manual 10 Mbps Full-Duplex Receiving Active Manual 100 Mbps Half-Duplex Transmitting Active Manual 100 Mbps Half-Duplex Receiving Active Manual 100 Mbps Full-Duplex Transmitting Low Manual 100 Mbps Full-Duplex Receiving Active Auto-Negotiation 10 Mbps Half-Duplex Transmitting Active Auto-Negotiation 10 Mbps Half-Duplex Receiving Active Auto-Negotiation 10 Mbps Full-Duplex Transmitting Low Auto-Negotiation 10 Mbps Full-Duplex Receiving Active Auto-Negotiation 100 Mbps Half-Duplex Transmitting Active Auto-Negotiation 100 Mbps Half-Duplex Receiving Active Auto-Negotiation 100 Mbps Full-Duplex Transmitting Low Auto-Negotiation 100 Mbps Full-Duplex Receiving Active |
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