NRF9160-SICA-R7 datasheet(167/400 Pages) NORDIC

167 / 400 page

Peripherals

PWM generation can then only be restarted through a SEQSTART[n] task. SEQSTART[n] will resume PWM

generation after having loaded the first value from the RAM buffer defined in the SEQ[n].PTR register.

The following table indicates when specific registers get sampled by the hardware. Care should be taken

when updating these registers to avoid that values are applied earlier than expected.

Taken into account by hardware

Recommended (safe) update

SEQ[n].PTR

When sending the SEQSTART[n] task

After having received the SEQSTARTED[n] event

SEQ[n].CNT

When sending the SEQSTART[n] task

After having received the SEQSTARTED[n] event

SEQ[0].ENDDELAY When sending the SEQSTART[0] task

Every time a new value from sequence [0] has been loaded from

RAM and gets applied to the Wave Counter (indicated by the

PWMPERIODEND event)

Before starting sequence [0] through a SEQSTART[0] task

When no more value from sequence [0] gets loaded from RAM

(indicated by the SEQEND[0] event)

At any time during sequence [1] (which starts when the

SEQSTARTED[1] event is generated)

SEQ[1].ENDDELAY When sending the SEQSTART[1] task

Every time a new value from sequence [1] has been loaded from

RAM and gets applied to the Wave Counter (indicated by the

PWMPERIODEND event)

Before starting sequence [1] through a SEQSTART[1] task

When no more value from sequence [1] gets loaded from RAM

(indicated by the SEQEND[1] event)

At any time during sequence [0] (which starts when the

SEQSTARTED[0] event is generated)

SEQ[0].REFRESH

When sending the SEQSTART[0] task

Every time a new value from sequence [0] has been loaded from

RAM and gets applied to the Wave Counter (indicated by the

PWMPERIODEND event)

Before starting sequence [0] through a SEQSTART[0] task

At any time during sequence [1] (which starts when the

SEQSTARTED[1] event is generated)

SEQ[1].REFRESH

When sending the SEQSTART[1] task

Every time a new value from sequence [1] has been loaded from

RAM and gets applied to the Wave Counter (indicated by the

PWMPERIODEND event)

Before starting sequence [1] through a SEQSTART[1] task

At any time during sequence [0] (which starts when the

SEQSTARTED[0] event is generated)

COUNTERTOP

In DECODER.LOAD=WaveForm: this register is ignored.

In all other LOAD modes: at the end of current PWM period

(indicated by the PWMPERIODEND event)