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ISP Header - 20-way IDC ARM Debug Connector

 
 
 
The 'ARM 20-way IDC JTAG Debug' Header is used for both In-System Programming (ISP) and In-System Debugging (ISD) of any ARM microcontrollers via ots on-chip JTAG port. This method of connection allows an external debugger to control the execution of code running inside the Target Microcontroller. The port also supports high-speed ISP on the Target Device via JTAG.
 
 

Features

 
 
Advantages
Equinox Programmer Compatability
ISP Header Pin-out
Device Support

Advantages
  • Supports In-System Debugging (ISD) via suitable external debugger
  • Supports high-speed In-System Programming (ISP) via the JTAG port of the Target Microcontroller
  • The same JTAG port can be be used for both ISP and Debugging

Equinox Programmer Compatability

The programmer interfaces to the ARM Microcontroller via the on-chip JTAG port. The following Equinox programmers support the JTAG Programming Interface:

  • Epsilon5
  • FS2003
  • FS2009
  • PPM3-MK2
  • The Epsilon5, FS2003 and FS2009 require the AT91SAM7 20-way ISP Connector Cable in order to connect to the 20-way ARM IDC connector.
  • The PPM3-MK2 and PPM4-MK1 programmers require the EQ-IOCON-10 module in order to connect to the 20-way ARM IDC connector.

ISP Header Pin-out

The table below details the pin-out connections of this header

 

Pin No

Pin Name

Programmer Input/Output

Description

1

VTref

I

Target System Reference Voltage

This pin is used by the programmer to sense / power the programmer Line Driver circuitry

2

Vsupply

N/C

Not used by Equinox Programmers

3

nTRST

O

No connect to Equinox Programmer

This signal is not used by Equinox Programmers.

It is pulled high with a 47k ohm resistor on the programmer cable / connector module

4

PROG_GND

P

Ground Connection

Common ground connection between programmer and Target System

5

PROG_TDI

O

JTAG TDI – Test Data Input pin

Data signal from programmer to Target Device JTAG port

6

PROG_GND

P

Ground Connection

Common ground connection between programmer and Target System

7

PROG_TMS

O

JTAG TMS – Test Mode Select pin

Mode Select Signal from programmer to Target Device JTAG port

8

PROG_GND

P

Ground Connection

Common ground connection between programmer and Target System

9

PROG_TCK

O

JTAG TCK – Test Clock Signal pin

Clock signal from programmer to Target Device JTAG port

10

PROG_GND

P

Ground Connection

Common ground connection between Programmer and Target System

11

RTCK

N/C

Input Return Test Clock signal from Target System

This signal is not used by Equinox programmers.

12

PROG_GND

P

Ground Connection

Common ground connection between Programmer and Target System.

13

PROG_TDO

I

JTAG TDO – Test Data Output pin

JTAG data output from Target device JTAG port to programmer. Typically connected to TDO pin on AT91SAM7 device

14

PROG_GND

P

Ground Connection

Common ground connection between Programmer and Target System.

15

PROG_RESET

O

Microcontroller RESET control signal

This pin connects to the main RESET pin of the Target AT91SAM7 microcontroller or to the AT91SAM7 RESET circuit on the Target System

16

PROG_GND

P

Ground Connection

Common ground connection between Programmer and Target System

17

N/C

N/C

No connect to Equinox Programmer

18

PROG_GND

P

Ground Connection

Common ground connection between Programmer and Target System

19

N/C

N/C

No connect to Equinox Programmer

20

PROG_GND

P

Ground Connection

Common ground connection between Programmer and Target System

 

Key

O - Output from programmer to Target Device

I - Input to programmer from Target Device

P - Passive eg. GROUND and power rails

N/C - Not connected

 
 

Device Support (by family)

 
 
This product supports devices from the families listed below:
 
Atmel Corporation:
  • AT91SAM7A - ARM7 FLASH Microcontroller
  • AT91SAM7L (Low Power) Series - ARM7 FLASH Microcontroller
  • AT91SAM7S - ARM7 FLASH Microcontroller
  • AT91SAM7SE - ARM7 FLASH Microcontroller
  • AT91SAM9XE - ARM9 FLASH Microcontroller

 

Please note:
Not all devices may be supported within a family.
Please see the Detailed Device Support List for a list of all devices which the product supports.

 

For further information about related products, please see the Overview Product.



 
 
Overview Product
ISP Header OVERVIEW >>
 
 
Device Support
Device Support List
 
 
Associated Products View All
Cables
ARM 20-way ISP Cable for Epsilon5, FS2003 & FS2009 programmers >>

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