TNETX3150A datasheet(16/113 Pages) TI1

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TNETX3150/TNETX3150A

ThunderSWITCH™ 15-PORT 10-/100-MBIT/S ETHERNET™ SWITCH

SPWS027F – FEBRUARY 1997 – REVISED SEPTEMBER 1997

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

Terminal Functions (Continued)

JTAG interface

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

TCLK

AF19

Test clock. TCLK is used to clock state information and test data into and out of the device during operation

of the test port.

TDI

AD18

Test data input. TDI is used to serially shift test data and test instructions into the device during operation

of the test port.

TDO

AE19

Test data out. TDO is used to serially shift test data and test instructions out of the device during operation

of the test port.

TMS

AD19

Test mode select. TMS is used to control the state of the test-port controller within the

TNETX3150/TNETX3150A.

TRST

AC19

Test reset. TRST is asynchronous reset of the test-port controller.

miscellaneous functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

DREF

U23

DRAM reference. DREF is the DRAM reference clock.

V24

No connection.

OSCIN

AC12

Oscillator input. OSCIN is the TNETX3150/TNETX3150A clock input (50 MHz).

RESET

U26

Reset. RESET (active low) resets the TNETX3150/TNETX3150A. RESET should be held low for 25 ms

after the power supplies and clocks have stabilized. This input is synchronous and therefore, the system

clock must be operational during reset.

power interface

TERMINAL

DESCRIPTION

NAME

NO.

DESCRIPTION

GND

A1, A2, A13, A14, A25, A26, AD2, AD25, AE1,

AE3, AE24, AE26, AF1, AF2, AF13, AF14,

AF25, AF26, B1, B3, B24, B26, C2, C25, N1,

N26, P1, P26

Ground. GND is the 0-V reference for the device.

VCC

AC4, AC9, AC13, AC18, AC23, AD3, AD24,

AE2, AE25, B2, B25, C3, C24, D4, D9, D14,

D18, D23, J4, J23, N4, V4, V23, P23

Supply voltage. VCC = 3.3 ± 0.3 V

VCC(5V)

AB2, AB25, AE5, AE9, AE14, AE18, AE22, B5,

B9, B13, B18, B22, E2, E25, J2, J25, N25, P2,

V2, V25

Supply voltage. VCC(5V) = 5 ± 0.5 V. VCC(5V) is for the I/O periphery only

and is used for the 5-V tolerant pads only.

TNETX3150A Datasheet(PDF) 16 Page - Texas Instruments

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