User manual

MPLAB

REAL ICE

™

In-Circuit Emulator User’s Guide

7.4 USB PORT/POWER

The MPLAB REAL ICE in-circuit emulator is connected to the host PC via a Universal

Serial Bus (USB) port, version 2.0 compliant. The USB connector is located on the

back of the pod. A USB port on the host PC is required.

The system is capable of reloading the firmware via the USB interface.

System power is derived from the USB interface. The emulator is classified as a high

power system per the USB specification, and requires 300 mA of power from the USB

to function in all operational modes (emulator/programmer).

Cable Length – The PC-to-emulator cable length for proper operation has been tested

for each driver board and is shipped in the emulator kit.

7.5 EMULATOR POD

The emulator pod consists of a main board enclosed in the casing with a port for two

optional driver boards (for standard or high-speed communication with a target). On the

emulator encloser are push buttons, indicator lights (LEDs) and a logic probe connector

interface.

7.5.1 Main Board

This component has the interface processor (dsPIC DSC), the USB 2.0 interface

capable of USB speeds of 480 Mb/sec, a Field Programmable Gate Array (FPGA) for

general system control and increased communication throughput, an SRAM for holding

the program code image for programming into the emulation device on-board Flash,

the external trigger logic, user interface push buttons and LED indicators.

The MPLAB REAL ICE in-circuit emulator system supports two types of interfaces to

the target processor. They consist of the standard driver board and an optional

high-speed driver board. These boards are inserted into the emulator pod via a card

guide.

Durability/insertion life cycle of the card guide: 10,000 cycles

7.5.2 Push Buttons

The push buttons have the following significance.

Push Button

LED

Description

Reset Status Push to Reset the device.

Function Status Halt – When running, push to put the emulator in the Break or

halted condition.