STM32W108HB datasheet(105/278 Pages) STMICROELECTRONICS

Part #	STM32W108HB

Description	High-performance, IEEE 802.15.4 wireless system-on-chip with up to 256 Kbytes of embedded Flash memory

PDF	278 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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105 / 278 page

STM32W108HB STM32W108CC STM32W108CB STM32W108CZ

Serial interfaces

Doc ID 16252 Rev 14

105/278

Serial interfaces

9.1

Functional description

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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SPI (Serial Peripheral Interface), master or slave

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I2C (Inter-Integrated Circuit), master only

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UART (Universal Asynchronous Receiver/Transmitter), SC1 only

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Receive and transmit FIFOs and DMA channels, SPI and UART modes

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. Figure 10 shows

the components of the serial controllers.

Note:

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.

STM32W108HB Datasheet(PDF) 105 Page - STMicroelectronics