TNETX15VE datasheet(67/113 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

PRINCIPLES OF OPERATION

DIO interface

The DIO interface is asynchronous to allow easy adaptation to a range of microprocessor devices and computer

system

interfaces.

The

DIO

interface

designed

operate

from

the

same

bus

the

TNETX3150/TNETX3150A DIO interface. Thus, both devices are accessed using the same DIO read and write

routines. Each device is selected for DIO reads and writes through independent chip-select signals. Chip select

for the TNETX3150/TNETX3150A is named SCS, while chip select for the TNETX15VE is named ESCS. Figure

13 shows how the TNETX15VE and the TNETX3150/TNETX3150A share the DIO interface.

Microprocessor

TNETX3150/TNETX3150A

EINT

TNETX15VE

SDATA7–SDATA0

SAD1–SAD0

SRNW

SRDY

ESCS

SCS

Figure 13. DIO Interface Bus

TNETX15VE 数据表(PDF) 67 Page - Texas Instruments

TNETX15VE 数据表(HTML) 67 Page - Texas Instruments

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