DRA76P: SPI Bandwidth

Derek Didier58

Prodigy 20 points

Part Number: DRA76P

How can I calculate the McSPI Bandwidth?

My clock is 10MHz. Data transfer is 32 bits.

over 6 years ago

0 Derek Didier58 over 6 years ago

Prodigy 20 points

The data transfer is 32 bytes not 32 bits

0 Stanislav Stilyanov over 6 years ago in reply to Derek Didier58

TI__Genius 17980 points

Hi Derek,

SPI shifts one bit out per clock cycle. I.e. we have 10 Mbps raw data rate.

If your question is how much of this raw data rate is the pure data rate, then we need to know your usecase.

For example, if you read from a memory, some bytes are sent to tell the memory the address to read from. The address bytes must be excluded from the data rate thus we need to know how many are they.

Regards,

Stan

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DRA76P: SPI Bandwidth