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5228-DS06-R 数据表(PDF) 66 Page - Broadcom Corporation. |
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5228-DS06-R 数据表(HTML) 66 Page - Broadcom Corporation. |
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66 / 100 page ![]() BCM5228 Data Sheet 7/12/04 Broa d c om Co rp o r a t i o n Page 54 Auxiliary Status Summary Register Document 5228-DS09-405-R AUXILIARY STATUS SUMMARY REGISTER This register contains copies of redundant status bits found elsewhere within the MII register space. Descriptions for each of these individual bits can be found associated with their primary register descriptions. Table 33: Auxiliary Status Summary Register (Address 25d, 19h) Bit Name R/W Description Default 15 Auto-Negotiation Complete RO 1 = Auto-negotiation process completed 0 14 Auto-Negotiation Complete Acknowledge RO LH 1 = Auto-negotiation completed acknowledge state 0 13 Auto-Negotiation Acknowledge Detected RO LH 1 = Auto-negotiation acknowledge detected 0 12 Auto-Negotiation Ability Detect RO LH 1 = Auto-negotiation for link partner ability 0 11 Auto-Negotiation Pause RO BCM5228 and link partner pause operation bit set 0 10:8 Auto-Negotiation HCD RO 000 = No highest common denominator 001 = 10BASE-T 010 = 10BASE-T full-duplex 011 = 100BASE-TX 100 = 100BASE-T4 101 = 100BASE-TX full-duplex 11x = Undefined 000 7 Auto-Negotiation Parallel Detection Fault RO LH 1 = Parallel detection fault 0 6 Link Partner Remote Fault RO 1 = Link partner has signalled a far-end fault condition in FX mode 0 5 Link Partner Page Received RO LH 1 = New page has been received 0 4 Link Partner Auto- Negotiation Able RO 1 = Link partner is auto-negotiation capable 0 3 Speed Indicator RO 1 = 100 Mbps 0 = 10 Mbps 0 2Link Status RO LL 1 = Link is up (link pass state) 0 1 Auto-Negotiation Enabled RO 1 = Auto-negotiation enabled 1 0 Full-Duplex Indication RO LL 1 = Full-duplex active 0 = Full-duplex not active 0 Note: R/W = Read/Write, RO = Read Only, SC = Self Clear, LL = Latched Low, LH = Latched High, LL and LH Clear after read operation. |
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