Abov MC96F6432S Series - Usi (Usart + Spi + I2 C); Overview

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MC96F6432S
ABOV Semiconductor Co., Ltd.
11.12 USI (USART + SPI + I2C)
11.12.1 Overview
The USI is an acronym of USART, SPI and I2C, MC96F6432S has two USI function blocks, USI0 and USI1 are
absolutely same functionally. Each USI consists of USI control register1/2/3/4, USI status register 1/2, USI baud-rate
generation register, USI data register, USI SDA hold time register, USI SCL high period register, USI SCL low period
register, and USI slave address register (USInCR1, USInCR2, USInCR3, USInCR4, USInST1, USInST2, USInBD,
USInDR, USInSDHR, USInSCHR, USInSCLR, USInSAR) n is 0 or 1.
The operation mode is selected by the operation mode of USIn selection bits (USInMS[1:0]).
It has four operating modes:
− Asynchronous mode (UART)
− Synchronous mode (USART)
− SPI mode
− I2C mode