STM32W108CBU6 STMICROELECTRONICS [STMicroelectronics], STM32W108CBU6 Datasheet - Page 62

• Manufacturer Part Number: STM32W108CBU6
• Description: High-performance, IEEE 802.15.4 wireless system-on-chip
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Serial interfaces
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Serial interfaces
The STM32W108 has two serial controllers, SC1 and SC2, which provide several options
for full-duplex synchronous and asynchronous serial communications.
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Receive and transmit FIFOs allow faster data speeds using byte-at-a-time interrupts. For the
highest SPI and UART speeds, dedicated receive and transmit DMA channels reduce CPU
loading and extend the allowable time to service a serial controller interrupt. Polled
operation is also possible using direct access to the serial data registers.
components of the serial controllers.
The notation SCx means that either SC1 or SC2 may be substituted to form the name of a
specific register or field within a register.
Figure 9.
SPI (Serial Peripheral Interface), master or slave
TWI (Two Wire serial Interface), master only
UART (Universal Asynchronous Receiver/Transmitter), SC1 only
Receive and transmit FIFOs and DMA channels, SPI and UART modes
Serial controller block diagram
Doc ID 16252 Rev 2
STM32W108CB, STM32W108HB
Figure 9
shows the