BH-ADP-ISO-20 Просмотр технического описания (PDF) - Unspecified

Номер в каталоге

Компоненты Описание

производитель

BH-ADP-ISO-20

Blackhawk™ 3.3v/5.0v Isolation Adapters

Unspecified 

3 Pin and Signal Mappings

Pin Name Pin Name

1 TMS

2

†

nTRST

3 TDI 4 GND

5 TVD 6 KEY

7 TDO 8 GND

9 RTCK 10 GND

11 TCLK 12 GND

13 EMU0 14 EMU1

†

Signals are active low

Table 1

Standard TI 4-pin JTAG Header

Pin Name Pin Name

1 TMS

2

†

nTRST

3 TDI

4 GND

5 TVD

6 KEY

7 TDO

8 GND

9 RTCK 10 GND

11 TCLK 12 GND

13 EMU0 14 EMU1

15 nSRST 16 GND

17 EMU2* 18 EMU3*

19 EMU4* 20 GND

†

Signals are active low

* Not Connected

Table 2

Compact TI 20-pin JTAG Header

4 Additional Information

The Blackhawk Isolation Adapter is compatible with all Blackhawk JTAG Emu-

lators currently in production and with most other emulators that conform to

the Texas Instruments 14 and 20-pin JTAG headers. Compatibility with target

hardware which is non-standard or existed prior to 1998 should be verified to

conform to the IEEE 1149.1 specification prior to using the adapter.

Use of the Blackhawk Isolation Adapter does not guarantee that damage will

not occur to hardware that is subjected to extreme voltage surge. Damage to

devices on the scan chain may still be possible under certain circumstances

beyond the scope of tolerances generally accepted as “normal operation”.

Blackhawk

123 Gaither Drive

Mt. Laurel, NJ 08054-1701

www.blackhawk-dsp.com

+1-877-983-4514

Blackhawk is a registered trademark of EWA Technologies, Inc.

4

BH-ISO14_20-QS-02

QUICK

START

GUIDE

Blackhawk™

3.3v/5.0v

Isolation

Adapters

This Quick Start Guide describes two (2) different Isolation

Adapters. Please refer to the parts of this guide that match

the type of Isolation Adapter that you have purchased and

is included.

Installation Requirements

• Emulators with a standard TI 14-pin or compact TI 20-pin JTAG Socket.

• TI development Board with a standard TI 14-pin or compact TI 20-pin JTAG

header and 3.3v or 5.0v IO voltages.

If you do not meet the 14-14 or 20-20 pin requirements between the emulator and target

board, you can use a 14e-20t or 20e-14t pin converter as needed.

The following isolation adapters are described in this document.

• BH-ADP-ISO14

For electrical Isolation of a target board and emulator with standard TI 14-pin JTAG con-

nection.

• BH-ADP-ISO20

For electrical Isolation of a target board and emulator with compact TI 20-pin JTAG con-

nector.

Features • Benefits • Specifications

• Supports I/O voltages of 3.3v/5.0v targets

• Works with XDS510 and XDS560-class emulators

• Designed using UL60950 and UL1577 standards

• 1,500 Vrms galvanic isolation voltage

• PCB isolation clearance and creepage distance of 4mm

• High speed operation: Up to 30MHz TCK

• 25kV/µs transient immunity

• Logic powered from target - JTAG pin 5 (TVD)

• Current consumption is 60-80 mA nominal (100 mA max)

• Digital Isolators: SI844x and ADuM1250

Important Environmental Considerations

Caution is necessary to minimize ESD (Electro-static Discharge) which can

damage electronic components. Use in a controlled environment where

ESD materials and practices are employed is highly recommended.

1

Share Link: