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VSC8541XMV-05 Datasheet(PDF) 42 Page - Microchip Technology |
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VSC8541XMV-05 Datasheet(HTML) 42 Page - Microchip Technology |
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42 / 101 page ![]() Registers VMDS-10513 VSC8541-02 Datasheet Revision 4.1 33 4.2.4 Auto-Negotiation Advertisement The bits in address 4 in the main registers space control the ability to notify other devices of the status of its auto-negotiation feature. The following table shows the available settings and readouts. 4.2.5 Link Partner Auto-Negotiation Capability The bits in main register 5 can be used to determine if the Cat5 link partner (LP) used with the VSC8541- 02 device is compatible with the auto-negotiation functionality. Table 25 • Device Auto-Negotiation Advertisement, Address 4 (0x04) Bit Name Access Description Default 15 Next page transmission request R/W 1: Request enabled 0 14 Reserved RO Reserved 13 Transmit remote fault R/W 1: Enabled 0 12 Reserved RO Reserved 11 Advertise asymmetric pause R/W 1: Advertises asymmetric pause 0 10 Advertise symmetric pause R/W 1: Advertises symmetric pause 0 9 Advertise100BASE-T4 R/W 1: Advertises 100BASE-T4 0 8 Advertise100BASE-TX FDX R/W 1: Advertise 100BASE-TX FDX 1 7 Advertise100BASE-TX HDX R/W 1: Advertises 100BASE-TX HDX 1 6 Advertise10BASE-T FDX R/W 1: Advertises 10BASE-T FDX 1 5 Advertise10BASE-T HDX R/W 1: Advertises 10BASE-T HDX 1 4:0 Advertise selector R/W 00001 Table 26 • Auto-Negotiation Link Partner Ability, Address 5 (0x05) Bit Name Access Description Default 15 LP next page transmission request RO 1: Requested 0 14 LP acknowledge RO 1: Acknowledge 0 13 LP remote fault RO 1: Remote fault 0 12 Reserved RO Reserved 11 LP advertise asymmetric pause RO 1: Capable of asymmetric pause 0 10 LP advertise symmetric pause RO 1: Capable of symmetric pause 0 9 LP advertise 100BASE-T4 RO 1: Capable of 100BASE-T4 0 8 LP advertise 100BASE-TX FDX RO 1: Capable of 100BASE-TX FDX 0 7 LP advertise 100BASE-TX HDX RO 1: Capable of 100BASE-TX HDX 0 6 LP advertise 10BASE-T FDX RO 1: Capable of 10BASE-T FDX 0 5 LP advertise 10BASE-T HDX RO 1: Capable of 10BASE-T HDX 0 4:0 LP advertise selector RO 00000 |
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