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TNETX15VE 数据表(PDF) 36 Page - Texas Instruments |
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TNETX15VE 数据表(HTML) 36 Page - Texas Instruments |
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36 / 113 page ![]() TNETX15VE VLAN-ENGINE ADDRESS-LOOKUP DEVICE SPWS028B – APRIL 1997 – REVISED SEPTEMBER 1997 36 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 new-address port register, newport at 0x36–0x37 (DIO) BYTE 3 BYTE 2 BIT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Reserved PORTCODE Reserved VLAN OLDPORT Initial Values After Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 BIT NAME FUNCTION 15–12 Reserved Writes to this location are ignored and read as 0. 11–8 PORTCODE Current port for node. The PORTCODE field holds the assigned port number for the address contained in the newnode register. 7–6 Reserved Writes to this location are ignored and read as 0. 5–4 VLAN Port VLAN assignment. VLAN shows the VLAN code for the port contained in the newnode register. This is a table lookup based on the port that the packet with this address was observed on via the port VLAN assignment registers at 0x78–0xE7. 3–0 OLDPORT Old port for address. When an address moves port locations, OLDPORT contains the old port location for the address. When a security-violation interrupt is asserted by the TNETX15VE, the SECVIO bit is set in the int register. OLDPORT shows the port where the node attempted to move. |
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