Figure 195. Complementary Outputs With Deadtime Insertion; Figure 196. Deadtime Insertion Versus Deadtime Sign (1 Indicates Negative Deadtime) - ST STM32G4 Series Reference Manual

RM0440
Crossbar output 1
Deadtime rising
Negative deadtime values can be defined when some control overlap is required. This is
done using the deadtime sign bits (SDTFx and SDTRx bits in HRTIM_DTxR register).
Figure 196

Figure 196. Deadtime insertion versus deadtime sign (1 indicates negative deadtime)

Out 1 (from crossbar)
Deadtime rising
Deadtime falling
The deadtime values are defined with DTFx[8:0] and DTRx[8:0] bitfields and based on a
specific clock prescaled according to DTPRSC[2:0] bits, as follows:
t = +/- DTx[8:0] x t
DTx
where x is either R or F and t

Figure 195. Complementary outputs with deadtime insertion

Counter
Compare
HRTIM_CHx1
HRTIM_CHx2
shows complementary signal waveforms depending on respective signs.
SDTRx = 0
SDTFx = 0
SDTRx = 1
SDTFx = 1
SDTRx = 0
SDTFx = 1
SDTRx = 1
SDTFx = 0
DTG
DTG
Deadtime falling
(DTPRSC[2:0])
= (2 ) x (t
RM0440 Rev 1
High-resolution timer (HRTIM)
/ 8).
HRTIM
MS32270V2
MS32271V1
831/2083
1040