AC162056

AC162056 INTRODUCTION

This document contains information about MPLAB® ICD 2 headers, which providein-circuit debugging capabilities for specific Microchip devices.A special ICD/ICE device is connected to a header board to be used with MPLAB ICD 2.This device is mounted on the top of a header and its signals are routed to theMPLAB ICD 2 connector (Figure 1). On the bottom of the header is a socket that isused to connect to the target board.FIGURE 1:MPLAB® ICD 2 MODULE CONNECTION WITH PDIP HEADERSpecial ICD/ICE versions of selected devices are needed to provide one or more of thefollowing:(cid:129) the built-in debug circuitry that a device may lack(cid:129) additional pins for the clock, data and MCLR functions required for ICD(cid:129) dedicated program/data memory for ICDICD versions are labeled with an ICD suffix (Device-ICD). For some devices, ICEversions are available (Device-ICE) and may be used with MPLAB ICD 2 as ICDdevices.