J T A G

P R OB E S

F OR

S I GN U M

E M ULATO RS

T E CHNI CA L

S P E C IF IC A TION S

9

The continuous normal operating voltage across the isolation barrier

can be 0 – 60VDC. The isolation voltage only represents a measure of immunity to

transient voltages—the probe should never be used as an element of a safety isolation

system. This probe can be expected to function correctly with a few hundred volts offset

applied continuously across the isolation barrier. However, the circuitry on both sides of

the barrier is then regarded as operating at an unsafe voltage and additional

isolation/insulation systems must be used in accordance with safety standard

requirements.

Signum Systems shall not be liable for any damages related to the use of this probe.

JTAG TMS320 Isolation Probe

ADA-ISO-TI14

The JTAG Isolation Probe for TMS320/470/570 Devices from Texas Instruments is a full isolation JTAG

probe for JTAGjet emulators which reduces the chance of damage to the emulator associated with ground

loops, voltage spikes, electrostatic discharge (ESD) and noise on power and ground lines generated by high-

current motors and other machinery.

The probe fits between the JTAGjet emulator and the user’s target board equipped with the Texas Instruments

style 14-pin JTAG connector. The distinctive features of the ADA-ISO-TI14 include

•

Support for all TMS320C2000, C5000, C6000, OMAP, DM and TMS470 / 570 devices

•

Operating JTAG voltage from 3.0 V to 5.0 V (± 10%)

•

Galvanic isolation up to 1000 V (peak)*

•

50kV/µs transient immunity (typical) on JTAG lines

•

ESD protection of 8kV on contact and 15kV air discharge

•

Maximum JTAG clock rate up to 15MHz

1

3

5

7

9

11

13

2

4

6

8

10

12

14

TMS

TDI

PD

TDO

TCK_RET

TCK

EMU0

nTRST

GND

KEY

GND

GND

GND

EMU1

FIGURE 21 The JTAGjet TMS320 ADA-ISO-

TI14 isolation probe.

FIGURE 22 The TI14 pinout of the 14-pin JTAGjet

TMS320 isolation probe.

Pin 1