Microchip Technology dsPIC30F - dsPIC Quadrature Decoder Functionality; Quadrature Decoder Basic Modes

 2004 Microchip Technology Inc. DS70046C-page ix
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SECTION 20. SERIAL PERIPHERAL INTERFACE (SPI™) 20-1
Introduction .................................................................................................................................................... 20-2
Status and Control Registers ......................................................................................................................... 20-4
Modes of Operation ........................................................................................................................................ 20-7
SPI Master Mode Clock Frequency .............................................................................................................. 20-19
Operation in Power Save Modes ................................................................................................................. 20-20
Special Function Registers Associated with SPI Modules ........................................................................... 20-22
Related Application Notes ............................................................................................................................ 20-23
Revision History ........................................................................................................................................... 20-24
SECTION 21. INTER-INTEGRATED CIRCUIT™ (I2C™) 21-1
Overview ........................................................................................................................................................ 21-2
I
2
C Bus Characteristics .................................................................................................................................. 21-4
Control and Status Registers ......................................................................................................................... 21-7
Enabling I
2
C Operation ................................................................................................................................ 21-13
Communicating as a Master in a Single Master Environment ...................................................................... 21-15
Communicating as a Master in a Multi-Master Environment ........................................................................ 21-29
Communicating as a Slave .......................................................................................................................... 21-32
Connection Considerations for I
2
C Bus ....................................................................................................... 21-47
Module Operation During PWRSAV Instruction ........................................................................................... 21-49
Effects of a Reset ......................................................................................................................................... 21-49
Design Tips .................................................................................................................................................. 21-50
Related Application Notes ............................................................................................................................ 21-51
Revision History ........................................................................................................................................... 21-52
SECTION 22. DATA CONVERTER INTERFACE (DCI) 22-1
Introduction .................................................................................................................................................... 22-2
Control Register Descriptions ......................................................................................................................... 22-2
Codec Interface Basics and Terminology ....................................................................................................... 22-8
DCI Operation .............................................................................................................................................. 22-10
Using the DCI Module .................................................................................................................................. 22-17
Operation in Power Saving Modes ............................................................................................................... 22-28
Registers Associated with DCI ..................................................................................................................... 22-28
Design Tips .................................................................................................................................................. 22-30
Related Application Notes ............................................................................................................................ 22-31
Revision History ........................................................................................................................................... 22-32
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