TMS570LC4357-EP: Multi-Buffered Serial Peripheral Interface Module (MibSPI) with Parallel Pin Option

NAVEEN KUMAR

Part Number: TMS570LC4357-EP
Other Parts Discussed in Thread: TMS570LC4357

Tool/software:

Hi,

Greetings for the day, team.

I have some confusion regarding the use of the Multibuffered SPI Interface in the TMS570LC4357 microcontroller. I want to use the MIBSPI5 module, which has 4 MOSI and 4 MISO pins.

According to the latest datasheet of the TMS570LC4357, the MIBSPI configurations are as shown in this image:

However, according to the reference manual of the same MCU, the MIBSPI configurations are as shown in this image:

The datasheet states that MIBSPI5 has 4 MOSI and 4 MISO lines, but the reference manual states that MIBSPI5 has 2 MOSI and 2 MISO lines.

The MCU has dedicated 4 MOSI and 4 MISO pins. Can I use the MIBSPI5 module with 4 MOSI and 4 MISO lines in my design?

Thank you!

5 months ago

0 jagadish gundavarapu 5 months ago

TI__Guru 70241 points

Hi Naveen Kumar,

NAVEEN KUMAR said:
The datasheet states that MIBSPI5 has 4 MOSI and 4 MISO lines, but the reference manual states that MIBSPI5 has 2 MOSI and 2 MISO lines.

The MCU has dedicated 4 MOSI and 4 MISO pins. Can I use the MIBSPI5 module with 4 MOSI and 4 MISO lines in my design?

The datasheet information is correct.

Yes, MibSPI5 has 4MOSI and 4MISO lines.

You can refer below page in the datasheet here they mentioned pin numbers for all the pins.

As you can see here there pins for four MOSI and 4 MISO in MibSPI5 (highlighted in yellow). So, this MIBSPI5 instance will support 4-wire parallel communication.

--
Thanks & regards,
Jagadish.

0 NAVEEN KUMAR 5 months ago in reply to jagadish gundavarapu

Prodigy 10 points

Hi Jagadish,

Thanks for Clarification, This Resolved my issue.

Thanks & regards,

Naveen Kumar

Arm-based microcontrollers

Arm-based microcontrollers forum

TMS570LC4357-EP: Multi-Buffered Serial Peripheral Interface Module (MibSPI) with Parallel Pin Option