UM0231

The In-circuit debugging adapter (AD-ICD/DS8Z-01) makes it possible to debug an application while it runs on an ST7FLiteUS microcontroller with any in-circuit debugging (ICD) tool that uses the In-Circuit Communication (ICC) protocol for ST7.

In-circuit debugging with ICC protocol and 10-pin ICC connection requires the use of a minimum of 4 pins on the target ST7 microcontroller. This constitutes an important imposition on the limited pin resources of low pin count microcontrollers such as the ST7FLiteUS (available in DIP8, SO8 and DFN8 packages).

To allow you to take full advantage of the available pins on the target device for your application, the AD-ICD adapter uses a variant of the target microcontroller with additional pins for in-circuit debugging. The additional pins allow the connections required for in-circuit debugging so that none of the pins used as I/Os on the standard target microcontroller need be used for ICD.