TNETX3150 Datasheet, PDF (16/113 Pages) Texas Instruments – ThunderSWITCHE 15-PORT 10-/100-MBIT/S ETHERNETE SWITCH

TNETX3150/TNETX3150A
ThunderSWITCH^™ 15-PORT 10-/100-MBIT/S ETHERNET^™ SWITCH
SPWS027F – FEBRUARY 1997 – REVISED SEPTEMBER 1997
Terminal Functions (Continued)
JTAG interface
TERMINAL
I/O
NAME
NO.
TCLK
AF19 I
TDI
AD18 I
TDO
AE19 O
TMS
TRST
AD19 I
AC19 I
DESCRIPTION
Test clock. TCLK is used to clock state information and test data into and out of the device during operation
of the test port.
Test data input. TDI is used to serially shift test data and test instructions into the device during operation
of the test port.
Test data out. TDO is used to serially shift test data and test instructions out of the device during operation
of the test port.
Test mode select. TMS is used to control the state of the test-port controller within the
TNETX3150/TNETX3150A.
Test reset. TRST is asynchronous reset of the test-port controller.
miscellaneous functions
TERMINAL
NAME
NO.
DREF
U23
NC
V24
OSCIN
AC12
RESET
U26
I/O
DESCRIPTION
O DRAM reference. DREF is the DRAM reference clock.
No connection.
I
Oscillator input. OSCIN is the TNETX3150/TNETX3150A clock input (50 MHz).
Reset. RESET (active low) resets the TNETX3150/TNETX3150A. RESET should be held low for 25 ms
I
after the power supplies and clocks have stabilized. This input is synchronous and therefore, the system
clock must be operational during reset.
power interface
NAME
GND
VCC
VCC(5V)
TERMINAL
NO.
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
AC4, AC9, AC13, AC18, AC23, AD3, AD24,
AE2, AE25, B2, B25, C3, C24, D4, D9, D14,
D18, D23, J4, J23, N4, V4, V23, P23
AB2, AB25, AE5, AE9, AE14, AE18, AE22, B5,
B9, B13, B18, B22, E2, E25, J2, J25, N25, P2,
V2, V25
DESCRIPTION
Ground. GND is the 0-V reference for the device.
Supply voltage. VCC = 3.3 ± 0.3 V
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.
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