How many clock cycles does the HTU take to complete a request?

Safiullah Hussaini

So how much time does the HTU take to complete a request from N2HET (RM46) to tranfer a sigle 32-bit dword to the N2HET RAM?

If I am using multiple requests in my N@HET program, how far apart should they be spaced in order to not loose requests?

over 9 years ago

0 QJ Wang over 9 years ago

TI__Guru**** 196226 points

Hi Safiullah,

I have forwarded your question to our NHET expert. He will do a check and come back to you soon.

Regards,
QJ

0 Charles Tsai over 9 years ago in reply to QJ Wang

TI__Guru**** 190616 points

Hello Safiullah;

My estimate will be less than 15 CPU cycles to complete. Unless you are generating HTU request at a rate faster 15 CPU cycles, you should not get the lost request error. Your NHET LRP (loop resolution clock) will most likely be much larger than 15 CPU clocks. The assumption here is that you have only one request coming from the NHET. If you have multiple requests coming from the NHET and each request is setup to transfer large amount of data then some lower priority requests may not be serviced in time resulting in request lost.

0 Safiullah Hussaini over 9 years ago in reply to Charles Tsai

Intellectual 885 points

Thank you Charles, this answers the question.

Arm-based microcontrollers

Arm-based microcontrollers forum

How many clock cycles does the HTU take to complete a request?