topic Re: S32G2 - maximum bandwidth Cortex M7 to the internal system RAM ? in S32G

S32G2 - maximum bandwidth Cortex M7 to the internal system RAM ?

jochengerster — Mon, 25 Apr 2022 09:33:59 GMT

Hello

customer ask about the maximum available bandwidth from the Cortex M7 cores to the internal system RAM (not the TCM) ?

thanks

Jochen

Re: S32G2 - maximum bandwidth Cortex M7 to the internal system RAM ?

Bio_TICFSL — Mon, 25 Apr 2022 20:27:40 GMT

Hello Jochengerster,

The S32G have and internal Standby SRAM with ECC of 32KB.

Regards

Re: S32G2 - maximum bandwidth Cortex M7 to the internal system RAM ?

jochengerster — Tue, 26 Apr 2022 08:10:30 GMT

Thanks for your reply - but actually the question was what is the max throughput (bandwidth) of the M7 when accessing the system RAM (x Mbit/sec)

Re: S32G2 - maximum bandwidth Cortex M7 to the internal system RAM ?

Bio_TICFSL — Tue, 26 Apr 2022 13:37:24 GMT

Hi jochengerster,

Theoretical maximum bandwidth can not be achieved in real device due to internal

buses and arbiters limitations. The total memory bandwidth in use (read+write) is around 480 MB/s which would make sense as we associate it with the bandwidth used by the framebuffer being displayed.

Regards