Datasheet

Optional Debug Headers
 2006-2012 Microchip Technology Inc. DS51292U-page 57
AC244026, AC244027
Header Identification
The header AC number is used for ordering the header. However, this number is not
on the debug header, as the board is often used for multiple headers by inserting
different ICE/ICD devices. To identify this debug header, use the following information.
Header Setup and Operation - AC244026
This Processor Extension Pak provides extra debugging capability not available on
PIC16F727 production devices:
• 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.
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).
Header 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.
J3
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
stability/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.)