Datasheet

PEP and Debug Header Specification

DS50001292W-page 64  2006-2015 Microchip Technology Inc.

AC244026, AC244027

Header Identification

The AC number is used for ordering the Processor Extension Pak, which contains the

debug header. However, this number is not on the header, as the board may be used

for multiple headers by inserting different -ICE/-ICD devices. To identify these headers,

use the following information.

Header Setup and Operation

This Processor Extension Pak provides extra debugging capability that is not available

on the production devices, including the following:

• 3 Address/Data breakpoints (1 Address only breakpoint on production devices)

• Data capture (Real Time Data Streaming)

• No user Flash resources needed for debugging

• No user RAM resources needed for debugging

• No user pins required

This header has jumpers available for MCLR pull-up and power LED control.

AC244026 HEADER

Additionally, this header has jumpers related to the LDO voltage regulator. Depending

on the device pin used for this function, you would use either J4 (RA0), J5 (RA5) or J6

(RA6) for Vcap selection. For details on the voltage regulator, see the

PIC16F72X/PIC16LF72X Data Sheet (DS41341).

AC Number -ICE/-ICD Device Board Assembly Number

AC244026 PIC16F727-ICE 02-02105

AC244027

PIC16LF727-ICE

Jumper Setting Function

J2 Open Disable weak ICE MCLR

pull-up resistor.

Short Enable weak ICE MCLR pull-up resistor. This option keeps the target

program running even after the tool has been disconnected from the

header, i.e., the pin will not float high.

Open

Disable power LED indicator. This option saves power.

Short Enable power LED indicator.

Jumper Setting Function

J4,

J5,

or J6

Open Use only target capacitance for Vcap. This is the standard configuration.

Short Use both on-board and target capacitance for Vcap.

This option is to provide extra margin for the voltage regulator stabil-

ity/regulation in cases where there is a long lead length between the

emulation header Vcap pin and the target Vcap pin. (As examples, when

using long-pin DIP transition sockets or certain QFN transition sockets.)