C6747 SPI0 and UART0 pin multipexing

Takahiro Ogo

Genius 5940 points

I have a question about C6747(ZKB) pin multiplexing.

My customer would like to use the SPI0 and UART0.

But some of these pins are multiplexed.

R3 UART0_RXD

P3 UART0_TXD

N4 SPI0_ENA/ UART0_CTS

R5 SPI0_SCS[0]/ UART0_RTS

T5 SPI0_CLK/

P6 SPI0_SIMO[0]

R6 SPI0_SOMI[0]

They don't need the flow control of UART function.

If UART flow control (RTS and CTS) are not used, can we use the UART0 and SPI0 together?

Best Regards,

Takahiro Ogo

over 10 years ago

0 Senthilkumar Srinivasan over 10 years ago

TI__Mastermind 43660 points

Hello Takahiro,

Yes, if you are not using UART0 flow control, you could map those pins to SPI interface. In this way, you can use both UART0 and SPI0 together.

Regards,
Senthil

0 Takahiro Ogo over 10 years ago in reply to Senthilkumar Srinivasan

Genius 5940 points

Hello Senthil,

Thank you very much for your continued support.
I understood it!

By the way, Which document can we understand this? TRM?

Best Regards,
Takahiro Ogo

0 Titusrathinaraj Stalin over 10 years ago in reply to Takahiro Ogo

TI__Guru** 116100 points

Yes, you can refer to the OMAPL137/C6747 TRM for PINMUX registers.

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C6747 SPI0 and UART0 pin multipexing