STM8L15 datasheet(21/122 Pages) STMICROELECTRONICS

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STM8L151xx, STM8L152xx

Functional overview

Doc ID 15962 Rev 5

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3.13.1

TIM1 - 16-bit 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 half-bridge driver.

●

16-bit up, down and up/down autoreload counter with 16-bit prescaler

●

3 independent capture/compare channels (CAPCOM) configurable as input capture,

output compare, PWM generation (edge and center aligned mode) and single pulse

mode output

●

1 additional capture/compare channel which is not connected to an external I/O

●

Synchronization module to control the timer with external signals

●

Break input to force timer outputs into a defined state

●

3 complementary outputs with adjustable dead time

●

Encoder mode

●

Interrupt capability on various events (capture, compare, overflow, break, trigger)

3.13.2

16-bit general purpose timers

●

16-bit autoreload (AR) up/down-counter

●

7-bit prescaler adjustable to fixed power of 2 ratios (1…128)

●

2 individually configurable capture/compare channels

●

PWM mode

●

Interrupt capability on various events (capture, compare, overflow, break, trigger)

●

Synchronization with other timers or external signals (external clock, reset, trigger and

enable)

3.13.3

8-bit basic timer

The 8-bit timer consists of an 8-bit up auto-reload counter driven by a programmable

prescaler. It can be used for timebase generation with interrupt generation on timer overflow

or for DAC trigger generation.

Table 3.

Timer feature comparison

Timer

Counter

resolution

Counter

type

Prescaler factor

DMA1

request

generation

Capture/compare

channels

Complementary

outputs

TIM1

16-bit

up/down

Any integer

from 1 to 65536

Yes

3 + 1

TIM2

Any power of 2

from 1 to 128

None

TIM3

TIM4

8-bit

Any power of 2

from 1 to 32768

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