STM32W108CBU6 STMICROELECTRONICS [STMicroelectronics], STM32W108CBU6 Datasheet - Page 15

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

STM32W108CB, STM32W108HB
1.2.17
1.2.18
1.2.19
1.2.20
1.2.21
These timers are capable of handling quadrature (incremental) encoder signals and the
digital outputs from 1 to 3 hall-effect sensors.
General purpose timers (TIMx)
There are up to 3 synchronizable standard timers embedded in STM32W108 devices.
These timers are based on a 16-bit auto-reload up/down counter, a 16-bit prescaler and
feature 4 independent channels each for input capture, output compare, PWM or one pulse
mode output. This gives up to 12 input captures / output compares / PWMs on the largest
packages. They can work together via the Timer Link feature for synchronization or event
chaining.
The counter can be frozen in debug mode.
Any of the standard timers can be used to generate PWM outputs. Each of the timers has
independent DMA request generations.
I²C bus
Up to two I²C bus interfaces can operate in multi-master and slave modes. They can support
standard and fast modes.
They support dual slave addressing (7-bit only) and both 7/10-bit addressing in master
mode. A hardware CRC generation/verification is embedded.
They can be served by DMA and they support SM Bus 2.0/PM Bus.
Universal synchronous/asynchronous receiver transmitter (USART)
The available USART interfaces communicate at up to 2.25 Mbit/s. They provide hardware
management of the CTS and RTS signals, support IrDA SIR ENDEC, are ISO 7816
compliant and have LIN Master/Slave capability.
The USART interfaces can be served by the DMA controller.
Serial peripheral interface (SPI)
Up to two SPIs are able to communicate up to 18 Mbits/s in slave and master modes in full-
duplex and simplex communication modes. The 3-bit prescaler gives 8 master mode
frequencies and the frame is configurable from 8-bit to 16-bit. The hardware CRC
generation/verification supports basic SD Card/MMC modes.
Both SPIs can be served by the DMA controller.
GPIOs (general purpose inputs/outputs)
Each of the GPIO pins can be configured by software as output (push-pull or open-drain), as
input (with or without pull-up or pull-down) or as Peripheral Alternate Function. Most of the
GPIO pins are shared with digital or analog alternate functions. All GPIOs are high
currentcapable.
The I/Os alternate function configuration can be locked if needed following a specific
sequence in order to avoid spurious writing to the I/Os registers.
Doc ID 16252 Rev 2
Description
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