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PICkit? SERIAL ANALYZER
USER ’S GUIDE
Chapter 4. I 2 C? Master Communications
4.1
4.2
INTRODUCTION
This chapter describes the I 2 C Master Communications mode. I 2 C data and
commands can be entered using a Basic Communications window or by creating Script
Commands.
It is assumed that the user is familiar with the I 2 C protocol. For more information see:
? The I 2 C-Bus Specification Version 2.1 January 2000 is available from NXP
Semiconductor (formerly Philips Semiconductor) web site at
http://www.nxp.com/acrobat_download/literature/9398/39340011.pdf
? An I 2 C Master Communications tutorial is available on the Microchip Technology
web site. Click on the links: Support -> Getting Started -> PIC MCU Tutorials ->
I2C Master Mode
? Several application notes are available on the Microchip Technology web site.
Click on links: Design -> App Notes -> Function: Communications -> I2C
HIGHLIGHTS
This chapter discusses:
?
?
?
?
?
?
PICkit Serial Pin Assignments
Selecting Communications Mode
Configuring I 2 C Communications Mode
Communications: Basic Operations
Script Builder
Script Execute
4.3
PICkit SERIAL PIN ASSIGNMENTS
The PICkit Serial Analyzer pin assignments for I 2 C Master mode are:
TABLE 4-1:
PIN ASSIGNMENTS
Pin
1
2
3
4
5
6
Label
AUX1
+V
GND
SDA
SCL
AUX2
Type
Input/Output
Power
Power
Input/Output
Power
Input/Output
Description
Auxiliary I/O port pin No. 1
Target Power
Ground
Serial Data
Serial Clock
Auxiliary I/O port pin No. 2
4.4
SELECTING COMMUNICATIONS MODE
The I 2 C Master Communications mode is selected from the Configuration Wizard or
menu bar.
Configuration Wizard – Select PICkit Serial Analyzer > Run Configuration Wizard
from the menu bar
? 2007 Microchip Technology Inc.
DS51647A-page 27
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