User manual

EEP and Emulation Header User’s Guide

DS50002243A-page 32  2014 Microchip Technology Inc.

3.4 AC244064

3.4.1 Header Identification

The header AC number is used for ordering the header. However, this number is not

on the emulation header, as the board is often used for multiple headers by inserting

different -ME2 devices. To identify this debug header, use the following information.

3.4.2 Header Setup and Operation

For this header, you will need to select your device type using J5.

You can also enable the Power LED by using J3. J6 is not a jumper but a group of pins

that you can use for trigger in/trigger out signals.

3.4.3 Header Limitations

See the “Limitations” section in your debug tool online Help file for details.

Additionally, the following silicon errata applies to this header:

CCP3 Capture (PIC16(L)F1784/7 only)

When the input threshold control for RE0 is configured for TTL, the CCP3 capture input

is ignored.

Work-around: Use ST Threshold.

Affected Silicon Revisions: C0

Header -ME2 Device Board Assembly Number

AC244064 PIC16F1789-ME2 02-10039

CAUTION

Header Damage.

Selecting the wrong type of device may cause device damage,

especially when Vdd is greater than 3.6 V (with respect to Vss).

Jumper Name Setting Function Notes

J3 LED Enable Open disable power LED indicator

Short enable power LED indicator

Emulation

Select

pins 1-2

emulate 'F' variants (5.5 V MAX) Note 1

pins 2-3 emulate 'LF' variants (3.6 V MAX!)

J6 Trigger I/O pin 1 Ground Note 2

pin 2 used for Trigger In

pin 3 used for Trigger Out

Note 1: Do not change this setting when the header is powered. Power down first.

Note 2: See Section 2.11 “Trigger In/Out”.