Datasheet

Product overview STM8AF52/62xx, STM8AF51/61xx
22/110 Doc ID 14395 Rev 9
TIM1 - advanced control timer
This is a high-end timer designed for a wide range of control applications. With its
complementary outputs, dead-time control and center-aligned PWM capability, the field of
applications is extended to motor control, lighting and bridge driver.
● 16-bit up, down and up/down AR (auto-reload) counter with 16-bit fractional prescaler.
● Four independent CAPCOM channels configurable as input capture, output compare,
PWM generation (edge and center aligned mode) and single pulse mode output
● Trigger module which allows the interaction of TIM1 with other on-chip peripherals. In
the present implementation it is possible to trigger the ADC upon a timer event.
● External trigger to change the timer behavior depending on external signals
● Break input to force the timer outputs into a defined state
● Three complementary outputs with adjustable dead time
● Interrupt sources: 4 x input capture/output compare, 1 x overflow/update, 1 x break
TIM2, TIM3 - 16-bit general purpose timers
● 16-bit auto-reload up-counter
● 15-bit prescaler adjustable to fixed power of two ratios 1…32768
● Timers with three or two individually configurable CAPCOM channels
● Interrupt sources: 2 or 3 x input capture/output compare, 1 x overflow/update
5.7.5 Basic timer
The typical usage of this timer (TIM4) is the generation of a clock tick.
● 8-bit auto-reload, adjustable prescaler ratio to any power of two from 1 to 128
● Clock source: master clock
● Interrupt source: 1 x overflow/update
Table 8. Advanced control and general purpose timers
Timer
Counter
width
Counter
type
Prescaler
factor
Channels
Inverted
outputs
Repetition
counter
trigger
unit
External
trigger
Break
input
TIM1 16-bit Up/down 1 to 65536 4 3 Yes Yes Yes Yes
TIM2 16-bit Up
2
n
n = 0 to 15
3 None No No No No
TIM3 16-bit Up
2
n
n = 0 to 15
2 None No No No No
Table 9. TIM4
Timer
Counter
width
Counter
type
Prescaler
factor
Channels
Inverted
outputs
Repetition
counter
trigger
unit
External
trigger
Break
input
TIM4 8-bit Up
2
n
n = 0 to 7
0 None No No No No