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KSZ9563RNXI-TR 数据表(PDF) 188 Page - Microchip Technology |
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KSZ9563RNXI-TR 数据表(HTML) 188 Page - Microchip Technology |
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188 / 226 page ![]() KSZ9563R DS00002419D-page 188 2017-2018 Microchip Technology Inc. 5.3.3.3 Reserved Multicast Address Table Entry 2 Register 5.3.4 VLAN TABLE An internal VLAN Table is used for VLAN lookup. If 802.1Q VLAN mode is enabled (Switch Lookup Engine Control 0 Register), this table will be used to retrieve the VLAN information that is associated with the ingress packet. The table holds 4096 entries - one for each possible VLAN. The table must be set up before 802.1Q VLAN is enabled. The VLAN table is accessed one entry at a time using the following indirect registers: • VLAN Table Entry 0 Register • VLAN Table Entry 1 Register • VLAN Table Entry 2 Register • VLAN Table Index Register • VLAN Table Access Control Register The table data fields are described in Figure 5-4 and Table 5-4. Address: 0x0424 - 0x0427 Size: 32 bits Bits Description Type Default 31:30 RESERVED R/W 00b 29:3 RESERVED RO 0x000000 2 Port 3 Forward 1 = Forward to this port 0 = Do not forward to this port R/W 0b 1 Port 2 Forward 1 = Forward to this port 0 = Do not forward to this port R/W 0b 0 Port 1 Forward 1 = Forward to this port 0 = Do not forward to this port R/W 0b FIGURE 5-4: VLAN TABLE STRUCTURE PORT FORWARD FILTER ID PORT UNTAG MSTP INDEX PRIORITY FORWARD OPTION VALID Entry # 0 Entry # 4095 Entry # 4094 Entry # 1 Entry # 2 Entry # 3 Entry # 4 V FO PRIORITY MSTP FID UNTAG FORWARD |
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