ST ST20-JPI User Manual

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ST20-JPI

PC PARALLEL PORT TO JTAG INTERFACE

PRODUCT INFORMATION

FEATURES

• Desktop mounted parallel port to JTAG inter­face

• Standard 25 way D-type parallel port connec­tion

• Standard 26 way D-type differential OS-Link
port for connection to a B300.

• Standard 20 way IDC cable for JTAG connec­tion.

• Plug top power supply

• Supports nibble, byte and EPP mode parallel

port standards

DESCRIPTION

The ST20-JPI parallel port to JTAG interface is
a host interface to allow connection from a PC
parallel port to any JTAG diagnostic controller
based ST20 development board. The interface
plugs into any standard PC 25 way D-type
parallel port. Supported parallel port modes
are:

• Nibble mode

• Byte mode

• EPP mode

depending on which mode the host PC can
support. Connection to the development target
is via a 20 way IDC JTAG connector. Once
connected, the development target can be
accessed using the MS Windows drivers
supplied with the standard ST20 toolset.

September 1996

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42 1685 00

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Hardware Installation - PC ..................................................................................................................... 4

2.2 Hardware Installation - B300 ................................................................................................................. 5

2.3 Software Installation .............................................................................................................................. 5

3 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1 The ST20-JPI front panel ....................................................................................................................... 6

3.2 The ST20-JPI rear panel ....................................................................................................................... 6

3.3 Differential Link Connection ................................................................................................................... 7

3.4 JTAG Connection .................................................................................................................................. 7

3.5 TrigIn/TrigOut SMB Coaxial Connectors ............................................................................................... 8

3.6 Power Supply Connector ....................................................................................................................... 8

4 Recommended Target Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5 Field Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

6 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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ST20-JPI

1 Introduction

The ST20-JPI parallel port to JTAG interface is a host interface to allow connection from a PC
parallel port to any JTAG based ST20 development board. The interface plugs into any standard
PC 25 way D-type parallel port. Supported parallel port modes are:

• Nibble mode

• Byte mode

• EPP mode

depending on which mode the host PC can support. Connection to the development target is via a
JTAG connector.

drivers supplied with the standard ST20 toolset.

Once connected, the development target can be accessed using the MS Windows

3/10

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