TC3567CFSG datasheet(29/49 Pages) TOSHIBA

29 / 49 page

TC3567CFSG-002

2018-04-06

4.6. PWM Interface

TC3567C has a PWM interface that can be used for LED, buzzer control, etc.

The PWM interface has the following features.



Arbitrary pulse generation function



It can select the source clock from 13 MHz and 32.768 kHz



It has 12-bit clock division setting up to 1/4096: 8 Hz to 16.384 kHz (32.768 kHz), 3.17 kHz to 6.5 MHz (13 MHz)



The pulse output can be masked by the regular pattern whose period is one second with 50 ms unit width (Rhythm function).



It can generate an interrupt which is synchronized to the rhythm pattern period 1 s.



It can switch the pulse output to Low / High active



It can adjust the duty cycle of the pulse output.

4.6.1.

Pulse Generation Function

Figure 4-18 shows a brief explanation of the pulse generation. TC3567C can adjust output pulse frequency by changing its cycle.

Also it can adjust on/off ratio by changing its duty.

The cycle (frequency) can be set from 8 Hz to 16.384 kHz for 32.768 kHz clock, and from 3.17 kHz to 6.5 MHz for 13 MHz clock.

The duty can be set from 0% to 100%

Cycle

Duty

Figure 4-18 PWM pulse generation function

TC3567CFSG Datasheet(PDF) 29 Page - Toshiba Semiconductor