DV164121 Microchip Technology, DV164121 Datasheet - Page 31

• Manufacturer Part Number: DV164121
• Description: KIT PICKIT 2 DEBUG EXPRESS
• Manufacturer: Microchip Technology
• Series: PICkit™ 2r
• Type: Microcontrollerr

Specifications of DV164121

• Contents: Board, PICkit™ 2 Programmer, Cable, CD
• Processor To Be Evaluated: PIC family
• Data Bus Width: 8 bit, 16 bit, 32 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PIC Micro® MCU
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Chapter 3. Using In-Circuit Serial Programming
3.1
© 2008 Microchip Technology Inc.
INTRODUCTION
The PICkit 2 Development Programmer/Debugger can program microcontroller
devices that are installed in an application circuit using In-Circuit Serial Programming
(ICSP). ICSP requires five signals:
• V
• ICSPCLK or PGC – Programming Clock; a unidirectional synchronous serial clock
• ICSPDAT or PGD – Programming Data; a bidirectional synchronous serial data line.
• V
• V
However, the application circuit must be designed to allow all the programming signals
to be connected to the device without distorting the programming signals. Figure 3-1
shows a typical circuit as a starting point when designing an application circuit for ICSP.
For successful ICSP programming, the precautions in the following sections need to be
followed.
FIGURE 3-1:
mode.
line from the programmer to the target.
Note:
PP
DD
SS
Isolation Circuitry:
Resistor or Schottky-type diode
10k*
– Programming Voltage; when applied, the device goes into Programming
– Power Supply ground reference.
– Power Supply positive voltage.
+5V
* Typical Values
0.1 μF*
For details on how a specific device is programmed, refer to the device
programming specification available from the Microchip web site at
www.microchip.com.
470 Ohm*
OR
TYPICAL ICSP™ APPLICATION CIRCUIT
+5V
1
2
3
4
V
RA5
RA4
RA3/MCLR/V
Target Microcontroller
DD
PICkit™ 2 USER’S GUIDE
Device
RA0/ICSPDAT
RA1/ICSPCLK
PP
RA2
V
SS
8
7
6
5
Programming
PICkit™ 2
Header
1
2
3
4
5
6
™
V
V
V
ICSPDAT/PGD
ICSPCLK/PGC
AUX
PP
DD
SS
To Application
Circuit
/MCLR
DS51553E-page 27
(ICSP
™)