TNETX15VE datasheet(15/113 Pages) TI1

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TNETX15VE

VLAN-ENGINE ADDRESS-LOOKUP DEVICE

SPWS028B – APRIL 1997 – REVISED SEPTEMBER 1997

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

DIO data register DIODATA at SAD1–SAD0 = 10b (DIO)

The DIO data register address allows indirect access to internal TNETX15VE registers. This is a temporary

staging register for data being written through to an internal register (write) or fetched from an internal register

(read).

DIO data auto-increment register DIODATAINC at SAD1–SAD0 = 11b (DIO)

The DIO data auto-increment register address allows indirect access to internal TNETX15VE registers. This

is a temporary staging register for data being written through to an internal register (write) or fetched from an

internal register (read). Accesses to this register cause a post-increment of the DIO address register.

internal register map

The DIO addresses for the internal registers are shown in the following:

BYTE 3

BYTE 2

BYTE 1

BYTE 0

DIO ADDRESS

Agingtimer (see Note 1)

RAMsize (see Note 1)

Revision

0x00

NLRNports (see Note 1)

0x04

FindVLANID

SIO

Control (see Note 1)

0x08

Findnode23–Findnode16

Findnode31–Findnode24

Findnode39–Findnode32

Findnode47–Findnode40

0x0C

Findport

Findnode7–Findnode0

Findnode15–Findnode8

0x10

SECVIOctr

Findcontrol

Findnodeage

0x14

Unkmultictr

Unkunictr

0x18

Numnodes

0x1C

MANtest

RAMaddr

0x20

RAMdata

0x24

Intmask

Int

0x28

AddVLANID

Adddelcontrol

0x2C

Newnode23–Newnode16

Newnode31–Newnode24

Newnode39–Newnode32

Newnode47–Newnode40

0x30

Newport

Newnode7–Newnode0

Newnode15–Newnode8

0x34

Addnode23–Addnode16

Addnode31–Addnode24

Addnode39–Addnode32

Addnode47–Addnode40

0x38

Addport

Addnode7–Addnode0

Addnode15–Addnode8

0x3C

Agednode23–Agednode16

Agednode31–Agednode24

Agednode39–Agednode32

Agednode47–Agednode40

0x40

AgedVLAN

Agedport

Agednode7–Agednode0

Agednode15–Agednode8

0x44

Delnode23–Delnode16

Delnode31–Delnode24

Delnode39–Delnode32

Delnode47–Delnode40

0x48

Delport

DelVLANID

Delnode7–Delnode0

Delnode15–Delnode8

0x4C

VLANmask1 (see Note 1)

VLANmask0 (see Note 1)

0x50

VLANmask3 (see Note 1)

VLANmask2 (see Note 1)

0x54

0x58

0x5C

0x60

0x64

0x68

0x6C

NOTE 1: These registers are automatically loaded from the attached EEPROM when the LOAD bit in the control register is set or when the

TNETX15VE is hardware reset by either deasserting the RESET terminal or by setting DIO address high to 0x40.

TNETX15VE 数据表(PDF) 15 Page - Texas Instruments

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