DM240021 Microchip Technology, DM240021 Datasheet - Page 32

• Manufacturer Part Number: DM240021
• Description: KIT STARTER MPLAB FOR PIC24H
• Manufacturer: Microchip Technology
• Series: MPLAB®r
• Type: MCUr

Specifications of DM240021

• Contents: Board, Cable, CD
• Processor To Be Evaluated: PIC24H128GP504
• Data Bus Width: 16 bit
• Silicon Manufacturer: Microchip
• Core Architecture: PIC
• Core Sub-architecture: PIC24
• Silicon Core Number: PIC24H
• Silicon Family Name: PIC24HJxxxGPxxx
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PIC24H
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

MPLAB
4.2
FIGURE 4-4:
DS51780A-page 28
DEBUG FUNCTIONAL OVERVIEW
Starter Kit for PIC24H Microcontrollers User’s Guide
12 MHz
Crystal
The block diagram shown in Figure 4-4 illustrates the debugging/programming
operation of the starter kit.
STARTER KIT DEBUG BLOCK DIAGRAM
The starter kit, with its built-in debugger/programmer, provides an all-in-one solution for
debugging and programming applications using MPLAB IDE. Also, no additional
external power supply is needed as power is supplied by the host PC’s USB port. See
the schematics in Figure A-7 and Figure A-8.
The starter kit’s debugging/programming operations are controlled by a PIC18F67J50
MCU running at 48 MHz. The PIC18F67J50’s built-in USB engine provides the
communications interface between the starter kit and the host PC.
Power to the starter kit is provided via USB, whose nominal 5V unregulated supply is
regulated by a Microchip MC1727 3.3V low-dropout (LDO) linear regulator. Proper
starter kit main system power is indicated by the green LED, D1.
The PIC18F67J50 MCU accomplishes debugging or programming of the target
PIC24HJ128GP504 by controlling the target’s PGC1/EMUC1 and PGD1/EMUD1
signals. Target power is switched on/off via a low V
configured as a high-side switch. Target clocking is also provided by the PIC18F67J50
MCU.
A Microchip 25LC010A serial EEPROM is used to store the starter kit’s serial number
and debug control information.
Serial EEPROM
25LC010A
USB Mini-B
Jack
PIC18F67J50 Device
PIC24H MCU
3.3V LDO
Regulator
Device
CE
saturation PNP transistor
© 2008 Microchip Technology Inc.
Status
LEDs