PIC32MX230F128L-I/PF View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC32MX230F128L-I/PF

32-bit Microcontrollers (up to 512 KB Flash and 64 KB SRAM) with Audio/Graphics/Touch (HMI), CAN, USB, and Advanced Analog

Microchip Technology 

PIC32MX1XX/2XX/5XX 64/100-PIN FAMILY

17.0 SERIAL PERIPHERAL

INTERFACE (SPI)

Note:

This data sheet summarizes the features

of the PIC32MX1XX/2XX/5XX 64/100-pin

family of devices. It is not intended to be

a comprehensive reference source. To

complement the information in this data

sheet, refer to Section 23. “Serial

Peripheral

Interface

(SPI)”

(DS60001106) in the “PIC32 Family

Reference Manual”, which is available

from the Microchip web site

(www.microchip.com/PIC32).

The SPI module is a synchronous serial interface that

is useful for communicating with external peripherals

and other microcontroller devices. These peripheral

devices may be Serial EEPROMs, Shift registers, dis-

play drivers, Analog-to-Digital Converters (ADC), etc.

The PIC32 SPI module is compatible with Motorola®

SPI and SIOP interfaces.

Some of the key features of the SPI module are:

• Master and Slave modes support

• Four different clock formats

• Enhanced Framed SPI protocol support

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

• Separate SPI FIFO buffers for receive and transmit

- FIFO buffers act as 4/8/16-level deep FIFOs

based on 32/16/8-bit data width

• Programmable interrupt event on every 8-bit, 

16-bit and 32-bit data transfer

• Operation during CPU Sleep and Idle mode

• Audio Codec Support:

- I2S protocol

- Left-justified

- Right-justified

- PCM

FIGURE 17-1:

SPI MODULE BLOCK DIAGRAM

Internal

Data Bus

Read

SPIxBUF

Write

SPIxRXB FIFO SPIxTXB FIFO

FIFOs Share Address SPIxBUF

Transmit

SDIx

Receive

SPIxSR

bit 0

SDOx

SSx/FSYNC

Slave Select

and Frame

Sync Control

Shift

Control

Clock

Control

Edge

Select

SCKx

Note: Access SPIxTXB and SPIxRXB FIFOs via SPIxBUF register.

MCLKSEL

1

REFCLK

Baud Rate

Generator

0

PBCLK

MSTEN

 2014-2017 Microchip Technology Inc.

DS60001290E-page 181

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