Microchip PIC24FJ128GU410 Manual

Microchip Ikke kategoriseret PIC24FJ128GU410

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Side 1/64



2013-2022

Microchip Technology Inc. and its subsidiaries DS70005136B-page 1

HIGHLIGHTS

This section of the manual contains the following major topics:

1.0 Introduction ....................................................................................................................... 2

2.0 Status and Control Registers ............................................................................................ 6

3.0 Modes of Operation ........................................................................................................ 21

4.0 Audio Protocol Interface Mode........................................................................................ 36

5.0 Interrupts......................................................................................................................... 56

6.0 Operation in Power-Saving and Debug Modes............................................................... 58

7.0 Effects of Various Resets ................................................................................................ 59

8.0 Peripherals Using SPI Modules ...................................................................................... 59

9.0 Related Application Notes............................................................................................... 60

10.0 Revision History .............................................................................................................. 61

Serial Peripheral Interface (SPI) with Audio Codec Support

dsPIC33/PIC24 Family Reference Manual

DS70005136B-page 2



2013-2022

Microchip Technology Inc. and its subsidiaries

1.0 INTRODUCTION

The Serial Peripheral Interface (SPI) module is a synchronous serial interface useful for

communicating with external peripherals and other microcontroller devices. These peripheral

devices may be a serial EEPROM, shift register, display driver, Analog-to-Digital Converter

(ADC) or an audio codec. The dsPIC33/PIC24 family SPI module is compatible with Motorola

SPI and SIOP interfaces. Figure 1-1 shows a block diagram of the SPI module.

Some of the key features of this module are:

• Host and Client modes support

• Four different clock formats

• Framed SPI protocol support

• Standard and Enhanced Buffering modes (Enhanced Buffering mode is not available on all

devices)

• User-configurable 8-bit, 16-bit and 32-bit data width

• Two separate shift registers for transmission and reception

• SPIx receive and transmit buffers are FIFO buffers in Enhanced Buffering mode

• User-configurable variable data width, from 2 to 32-bit

• Programmable interrupt event on every 8-bit, 16-bit and 32-bit data transfer

• Audio Protocol Interface mode

Some dsPIC33/PIC24 devices support audio codec serial protocols, such as Inter-IC Sound

(I2S), Left Justified, Right Justified and PCM/DSP modes for 16, 24 and 32-bit audio data. Refer

to the specific device data sheet for availability of these features.

The SPI serial interface consists of four pins:

• SDIx: Serial Data Input

• SDOx: Serial Data Output

• SCKx: Shift Clock Input or Output

• SSx: Active-Low Client Select or Frame Synchronization I/O Pulse

Note: This family reference manual section is meant to serve as a complement to device

data sheets. Depending on the device variant, this manual section may not apply to

all dsPIC33/PIC24 devices.

Please consult the note at the beginning of the “Serial Peripheral Interface

(SPI)” chapter in the current device data sheet to check whether this document

supports the device you are using.

Device data sheets and family reference manual sections are available for

download from the Microchip Worldwide Website at: http://www.microchip.com

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	PIC24FJ128GU410

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