Microchip Technology AT91SAM-ICE

AT91SAM-ICE Description
A JTAG emulator for Atmel® AT91 ARM® cores is called SAM-ICE. It can be connected to a computer running Microsoft® Windows® 2000 or above through USB. The standard 20-pin connector established by ARM is compatible with the built-in 20-pin JTAG connector found on SAM-ICETM.

AT91SAM-ICE Features
Fully plug and play compatible
Standard 20-pin JTAG connector
Wide target voltage range: 1.2V to 3.3V
USB and 20-pin ribbon cable included
Memory viewer (J-Mem) included
SAM-ICE TCP/IP server included, can use SAM-ICE via TCP/IP networks
RDI server available, can use SAM-ICE with RDI compliant software
Support for adaptive clocking
Any Atmel AT91 core supported, including ARM® Thumb® mode
Seamless integration into IAR Embedded Workbench®
No power supply required, powered through USB
Maximum JTAG speed 12MHz
Auto speed recognition
All JTAG signals can be monitored
Support for multiple devices

AT91SAM-ICE Applications
A debugger's primary job is to execute the target program under controlled circumstances so that the programmer may follow its progress and keep an eye on any changes in the system resources that can point to broken code.