Datasheet

Emulator User’s Guide for MPLAB X IDE
DS52085A-page 120  2013 Microchip Technology Inc.
13.4 MPLAB REAL ICE ISOLATOR UNIT (OPTO-ISOLATOR)
The MPLAB REAL ICE Isolator Unit (AC244005) is a useful accessory to the MPLAB
REAL ICE in-circuit emulator system. The isolator enables connectivity for AC line and
high voltage applications not referenced to ground. Typically, these are consumer
applications such as light dimmers, vacuum cleaners, washing machines, and other
types of motor-based systems where the MCU uses a non-isolated power supply
The isolator connects on one end to the Performance Pak high-speed cables. The iso-
lator connects on the other end to the target using an 8-pin, single-line ICSP connector.
See Figure 13-9.
To use this board:
1. Obtain a Performance Pak (AC244002). This board can only be used with the
Performance Pak.
2. Use this board instead of the high-speed receiver board. See
Section 13.3 “High-Speed/LVDS Communication Hardware (Performance
Pak)” for pin-outs.
Because of the complexity and high dynamic voltage range, the isolator currently pro-
vides MCU technology support only for some devices. See online help, “Device and
Feature Support” for details.
FIGURE 13-9: HIGH-SPEED EMULATOR SYSTEM USING ISOLATOR UNIT
DANGER
Do not remove the board enclosure. Depending on your application, you
could be exposing yourself to dangerous voltage levels.
Note: Isolation does not support trace.
Emulator Pod
Target Board
High-Speed
Driver Board
Target Device
ACTIVE
STATUS
RESETFUNCTION
J2
J3
Isolator Unit -
Performance Pak
or PIM
J2
J3
Isolator
Microchip
pin 1
Replaces
High-Speed
Receiver Board