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DM9000BEP Datasheet(PDF) 39 Page - Davicom Semiconductor, Inc. |
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DM9000BEP Datasheet(HTML) 39 Page - Davicom Semiconductor, Inc. |
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39 / 63 page  DM9000B Ethernet Controller with General Processor Interface Final 39 Version: DM9000B-13-DS-F03 March 5, 2012 8.6 Auto-negotiation Link Partner Ability Register (ANLPAR) – 05 This register contains the advertised abilities of the link partner when received during Auto-negotiation. Bit Bit Name Default Description 5.15 NP 0, RO Next Page Indication 1 = Link partner, next page available 0 = Link partner, no next page available 5.14 ACK 0, RO Acknowledge 1 = Link partner ability data reception acknowledged 0 = Not acknowledged The DM9000B's auto-negotiation state machine will automatically control this bit from the incoming FLP bursts. Software should not attempt to write to this bit 5.13 RF 0, RO Remote Fault 1 = Remote fault indicated by link partner 0 = No remote fault indicated by link partner 5.12 -5.11 Reserved 0, RO Reserved Read as 0, ignore on write 5.10 FCS 0, RO Flow Control Support 1 = Controller chip supports flow control ability by link partner 0 = Controller chip doesn’t support flow control ability by link partner 5.9 T4 0, RO 100BASE-T4 Support 1 = 100BASE-T4 is supported by the link partner 0 = 100BASE-T4 is not supported by the link partner 5.8 TX_FDX 0, RO 100BASE-TX Full Duplex Support 1 = 100BASE-TX full duplex is supported by the link partner 0 = 100BASE-TX full duplex is not supported by the link partner 5.7 TX_HDX 0, RO 100BASE-TX Support 1 = 100BASE-TX half duplex is supported by the link partner 0 = 100BASE-TX half duplex is not supported by the link partner 5.6 10_FDX 0, RO 10BASE-T Full Duplex Support 1 = 10BASE-T full duplex is supported by the link partner 0 = 10BASE-T full duplex is not supported by the link partner 5.5 10_HDX 0, RO 10BASE-T Support 1 = 10BASE-T half duplex is supported by the link partner 0 = 10BASE-T half duplex is not supported by the link partner 5.4-5.0 Selector <00000>, RO Protocol Selection Bits Link partner’s binary encoded protocol selector 8.7 Auto-negotiation Expansion Register (ANER)- 06 Bit Bit Name Default Description 6.15-6.5 Reserved 0, RO Reserved Read as 0, ignore on write 6.4 PDF 0, RO/LH Local Device Parallel Detection Fault PDF = 1: A fault detected via parallel detection function. PDF = 0: No fault detected via parallel detection function 6.3 LP_NP_ABLE 0, RO Link Partner Next Page Able LP_NP_ABLE = 1: Link partner, next page available LP_NP_ABLE = 0: Link partner, no next page |
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