TMS570LS3137 MibSPI Multi-buffer RAM Receive Buffer Register

Sh.Sasaki

Guru 13625 points

Hi all,

I understand MibSPI mode does use the Multi-buffer RAM instead of the SPIBUF register.

Is this my recognition is correct?

I'm confused because there is a description of the SPIBUF register in TRM(SPNU499B).

Best regards,

Mino.M

over 9 years ago

0 Charles Tsai over 9 years ago

TI__Guru**** 191886 points

Hi Mino,
The MibSPI can also operate in compatibility mode which is a mode without mutibuffer capability. In compatibility mode the SPIBUF is used to read the data. In Multibuffer mode the data is read from the multibuffer RAM.

0 Sh.Sasaki over 9 years ago in reply to Charles Tsai

Guru 13625 points

Hi Charles,

Thank you for your reply.

I understood that is as follows.

Best regards,

Mino.M

0 Charles Tsai over 9 years ago in reply to Sh.Sasaki

TI__Guru**** 191886 points

Hi Mino,
Your understanding is correct. Please note that the MibSPI RAM consists of multiple receive buffers and each buffer will have its own RXEMPTY.

0 Sh.Sasaki over 9 years ago in reply to Charles Tsai

Guru 13625 points

Charles,

Thank you for your reply.
I understood it.

Best regards,

Mino.M

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TMS570LS3137 MibSPI Multi-buffer RAM Receive Buffer Register