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KSZ9563RNXI-TR 数据表(PDF) 99 Page - Microchip Technology |
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KSZ9563RNXI-TR 数据表(HTML) 99 Page - Microchip Technology |
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99 / 226 page  2017-2018 Microchip Technology Inc. DS00002419D-page 99 KSZ9563R 5.1.5 GLOBAL SWITCH LOOK UP ENGINE (LUE) CONTROL REGISTERS (0x0400 - 0x04FF) The following registers are used for accessing the VLAN Table, Address Lookup Table, Static Address Table and the Reserved Multicast Address Table. The organizations of these tables, and instructions for accessing them, are provided in Section 5.3, "Tables and MIB Counters (Indirect Access)," on page 181. 5.1.5.1 VLAN Table Entry 0 Register Address: 0x0400 - 0x403 Size: 32 bits Bits Description Type Default 31 VALID This field in the VLAN Table specifies if the table entry is valid. 1 = Table entry is valid 0 = Table entry is invalid R/W 0b 30:28 RESERVED RO 000b 27 FORWARD OPTION This field in the VLAN Table specifies how the forwarding ports are determined. 1 = Forward to the VLAN Table port map (PORT FORWARD field). 0 = Forwarding ports are determined by other variables. It may be the ALU port map, the VLAN port map, the combination of the two, or the Unknown Unicast/Multicast feature. R/W 0b 26:24 PRIORITY This field in the VLAN Table specifies the priority level. R/W 000b 23:15 RESERVED RO 0000_0000_0b 14:12 MSTP INDEX This field in the VLAN Table specifies the Multiple Spanning Tree Protocol index. R/W 000b 11:7 RESERVED RO 0000_0b 6:0 FID This field in the VLAN Table specifies the Filter ID. The FID value is normally combined with the destination address and then hashed to index the address lookup table. R/W 000_0000b Note: Refer to Section 5.3.4, "VLAN Table," on page 188 for additional information on VLAN tables. |
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