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DP83924 Datasheet(PDF) 25 Page - National Semiconductor (TI) |
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DP83924 Datasheet(HTML) 25 Page - National Semiconductor (TI) |
25 / 42 page 25 www.national.com 4.0 Register Descriptions (Continued) This register contains the advertised abilities of this device as they will be transmitted to it’s Link Partner during Auto- Negotiation. This register contains the advertised abilities of the Link Partner during Auto-Negotiation. Table 16. Auto-Negotiation Advertisement Register, addr 0EH - 11H (port 1 to port 4) D15 D14 D13 D12:7 D6 D5 D4:D0 NPI RESV RF RESV FDX HDX RESV Name Bit Description Type NPI D15 Next Page Indication: 0 = Next Page Transfer not desired. 1 = Next Page Transfer desired. R/W resv D14 Reserved R RF D13 Remote Fault: 1 = Advertises that this device has detected a remote fault. 0 = No remote fault detected. R/W resv D12:7 Reserved R FDX D6 Full Duplex Capable: 1 = 10BASE-T Full Duplex supported by the local device. 0 = 10BASE-T Full Duplex not supported. The strap option on pins FDX[4:1] have no effect on what is advertised during auto- negotiation R/W HDX D5 Half Duplex Capable: 1 = 10BASE-T Half Duplex supported by the local device. 0 = 10BASE-T Half Duplex not supported. R/W resv D4:0 Reserved R Table 17. Auto-Negotiation Link Partner Ability Register, addr 12H - 15H (port 1 to port 4) D15 D14 D13 D12:7 D6 D5 D4:D0 NPI ACK RF RESV FDX HDX PRO Name Bit Description Type NPI D15 Next Page Indication: 0 = The Link Partner does not desire a Next Page Transfer. 1 = The Link Partner desires a Next Page Transfer. R ACK D14 Acknowledge: 1 = Link Partner acknowledges the reception of the ability data word. 0 = Not acknowledged. R RF D13 Remote Fault: 1 = Remote Fault indicated by Link Partner. 0 = No remote fault reported by Link Partner. R resv D12:7 Reserved R FDX D6 Full Duplex Capable: 1 = 10BASE-T Full Duplex supported by Link Partner. 0 = 10BASE-T Full Duplex not supported by Link Partner. R HDX D5 Half Duplex Capable: 1 = 10BASE-T Half Duplex supported by Link Partner. 0 = 10BASE-T Half Duplex not supported by Link Partner. R PRO D4:0 Protocol Selection Bits: Link Partners binary encoded protocol selector. R |
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