RT1020: How long is a wait state (e.g. GPIO, GPT peripherals)?

Showing results for 
Search instead for 
Did you mean: 

RT1020: How long is a wait state (e.g. GPIO, GPT peripherals)?

Contributor IV


Regarding document:

i.MX RT1020 Processor Reference Manual, Rev. 1, 12/2018

What does it mean by a wait state? Is this a single cycle of the peripheral’s root clock, the periph clock, processor clock, a __NOP() or what?

E.g. the GPIO peripheral:

Section, page 786

Section, page 789

Section, page 799

E.g. the GPT peripheral:

Section 46.7 GPT Memory Map/Register Definition, page 2451

Section 46.7.1 GPT Control Register (GPTx_CR), page 2453

There are other references to the wait state.

Many thanks and regards,


Labels (1)
0 Kudos
2 Replies

NXP TechSupport
NXP TechSupport


Please refer to the information as the it.



 Hope it  help you. Have a nice day.

- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.


0 Kudos

Contributor IV

Thank you for your reply.

Unfortunately, I'm not sure that answers my question. Perhaps my question was a bit clumsy.

When the document talks about wait states, I understand that it is in terms of clocks cycles. I.e. one wait state = one clock cycle.

But which clock? Is it the the main processor clock? Or is it the root clock to the peripheral in question? Please see the sections I mentioned.

Kind regards,


0 Kudos