© 2004 Microchip Technology Inc. DS70068C-page 21-1
Inter-Integrated
Circuit (I
2
C)
21
Section 21. Inter-Integrated Circuit™ (I
2
C™)
HIGHLIGHTS
This section of the manual contains the following major topics:
21.1 Overview ...................................................................................................................... 21-2
21.2 I
2
C Bus Characteristics................................................................................................ 21-4
21.3 Control and Status Registers ....................................................................................... 21-7
21.4 Enabling I
2
C Operation .............................................................................................. 21-13
21.5 Communicating as a Master in a Single Master Environment ................................... 21-15
21.6 Communicating as a Master in a Multi-Master Environment ..................................... 21-29
21.7 Communicating as a Slave ........................................................................................ 21-32
21.8 Connection Considerations for I
2
C Bus ..................................................................... 21-47
21.9 Module Operation During PWRSAV Instruction ......................................................... 21-49
21.10 Effects of a Reset....................................................................................................... 21-49
21.11 Design Tips ................................................................................................................ 21-50
21.12 Related Application Notes.......................................................................................... 21-51
21.13 Revision History ......................................................................................................... 21-52
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