5

Serial interfaces

The STM32W108 has two serial controllers: SC1 and SC2, the register organization in the Datasheet Rev 14 for these IP are

presented as following:

●

Serial Controller common registers

●

Serial peripheral interface registers

●

Inter-Integrated circuit registers

●

Universal Asynchronous Receiver/Transmitter registers (available for SC1 only)

●

Direct memory access registers

5.1

STM32W108xx Serial control Overview

Table 14 gives the list of the changes (renaming) made in the SC bits and registers.

Table 14.

SC bits and registers overview

Offset

(SC1/

SC2)

Register

STM32W108xx EXTI bits/registers naming overview

Serial Controller (Common registers)

0xA808

0xA80C

INT_

SCxFLAG

Res.

SCx_ISR

Res.

PE FE

NACK

CMDFIN

BTF

BRF

UDR

OVR

IDLE

TXE

RXNE