STM32W108C8 STMicroelectronics, STM32W108C8 Datasheet - Page 130

• Manufacturer Part Number: STM32W108C8
• Description: High-performance, IEEE 802.15.4 wireless system-on-chip with 64-Kybte Flash memory
• Manufacturer: STMicroelectronics

Specifications of STM32W108C8

• Receive Current (w/ Cpu): 27 mA
• Transmit Current (w/ Cpu, +3 Dbm Tx): 31 mA
• Low Deep Sleep Current, With Retained Ram And Gpio: 400 nA/800 nA with/without sleep timer
• Standard Arm Debug Capabilities: Flash patch and breakpoint; data watchpoint and trace; instrumentation trace macrocell
• Single Voltage Operation: 2.1-3.6 V with internal 1.8 V and 1.25 V regulators

General-purpose timers
10.1.10
129/215
●
●
●
One-pulse mode
One-pulse mode (OPM) is a special case of the previous modes. It allows the counter to be
started in response to a stimulus and to generate a pulse with a programmable length after
a programmable delay.
Starting the counter can be controlled through the slave mode controller. Generating the
waveform can be done in output compare mode or PWM mode. Select OPM by setting the
TIM_OPM bit in the TIMx_CR1 register. This makes the counter stop automatically at the
next update event.
A pulse can be correctly generated only if the compare value is different from the counter
initial value. Before starting (when the timer is waiting for the trigger), the configuration must
be:
●
●
Figure 36. Example of one pulse mode
The direction is not updated the value written to the counter that is greater than the
auto-reload value (TIMx_CNT > TIMx_ARR). For example, if the counter was counting
up, it continues to count up.
The direction is updated if when 0 or the TIMx_ARR value is written to the counter, but
no update event is generated.
The safest way to use center-aligned mode is to generate an update by software
(setting the TIM_UG bit in the TIMx_EGR register) just before starting the counter, and
not to write the counter while it is running.
In up-counting: TIMx_CNT < TIMx_CCRy ≤ TIMx_ARR (in particular, 0 < TIMx_CCRy),
In down-counting: TIMx_CNT > TIMx_CCRy.
Doc ID 018587 Rev 2
STM32W108C8