Which Is PGD & PGC Pins In PIC Microcontroller?

14.11 In-Circuit Debugger

The PIC16F882/883/884/886/887-ICD can be used in any of the package types. The device will be
mounted on the target application board, which in turn has a 3 or
4 wire connection to the ICD tool.

When the debug bit in the Configuration Word (CONFIG<13>) is programmed to a ‘0’, the In-Circuit
Debugger functionality is enabled. This function allows simple debugging functions when used with
MPLAB® ICD 2. When the microcontroller has this feature enabled, some of the resources are not available
for general use. See Table 14-9 for more detail.

Note: The user’s application must have the
circuitry required to support ICD functionality. Once the ICD circuitry is enabled, normal device
pin functions on RB6/ICSPCLK and RB7/ICSPDAT will not be usable. The ICD circuitry uses these pins
for communication with the ICD2 external
debugger.

For more information, see “Using MPLAB® ICD 2”
(DS51265), available on Microchip’s web site
(www.microchip.com).

14.11.1 ICD PINOUT

The devices in the PIC16F88X family carry the circuitry for the In-Circuit Debugger on-chip
and on existing device pins. This eliminates the need for a separate die or package for the ICD
device. The pinout for the ICD device is the same as the devices (see Section 1.0 “Device Overview”
for complete pinout and pin descriptions). Table 14-9 shows the location and function of the ICD
related pins on the 28 and 40 pin devices.

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