Serial Peripheral Interface/Inter-Ic Sound (Spi/I 2 S); Introduction; Main Features; Spi Features - Nations N32G43 Series User Manual

Serial peripheral interface/Inter-IC Sound (SPI/I

Introduction

This module is about SPI/I
registers.
Serial peripheral interface (SPI) is able to work in master or slave mode, support full-duplex and simplex high-speed
communication mode, and have hardware CRC calculation and configurable multi-master mode.
On-chip audio interface (I
audio standards: Philips I
Both of them are synchronous serial interface communication protocols.

Main features

SPI features


Full duplex mode and simplex synchronous mode.

Support master mode, slave mode and multi-master mode.

Supports 8-bit or 16-bit data frame format.

Data bit sequence programmable.

NSS management by hardware or software.

Clock polarity and phase programmable.

Sending and receiving support hardware CRC calculation and check.

Supports DMA function.
2
I S features

Simplex synchronous mode.

Supports master mode and slave mode operation.

Four audio standards are supported: Philips I
PCM standard.

The audio sampling frequency from 8kHz to 96kHz can be configured.

Supports 16-bit, 24-bit or 32-bit data length and data frame format (configured according to requirements).

Steady state clock polarity programmable.

The data direction is always MSB first.
2
S. It works in SPI mode by default and users can choose to use I
2
S) is able to work in master and slave modes in simplex communication, and supports four
2
S standard, MSB alignment standard, LSB alignment standard and PCM standard.
2
S standard, MSB alignment standard, LSB alignment standard and
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2
S)
2
S by setting the value of