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CC2642R-Q1: How many IOs can be mapping as CS for SPI

Manu Chang
Expert 3290 points

Part Number: CC2642R-Q1
Other Parts Discussed in Thread: CC2340R5-Q1

Hi team,

do you know where to find the IO mapping info of CC2642R-Q1?

Customers want to know how many IO's can be mapped as the SPI CS signal simulatnously for CC2642R-Q1?

Like figure showed below in CC2340R5-Q1 datasheet, it can easly find 2 IOs can be mapped as SPI0CSN, while it cannot be found in CC2642R-Q1, hence customers want to ask and check.

image.png

BR,

Manu

 

  • 0
    TI__Prodigy 190 points

    Hi Manu-

    Thanks for reaching out. Yes, it looks like this table is not found in the datasheet for CC2642R-Q1. However, section 9.8 of the datasheet says:

    The I/O controller (IOC) controls the digital I/O pins and contains multiplexer circuitry to allow a set of peripherals to be assigned to I/O pins in a flexible manner...five GPIOs have high-drive capabilities, which are marked in bold in Section 7. All digital peripherals can be connected to any digital pin on the device.

    Thus any GPIO pins can be used as a SPI CS output, with the only limit being the number of available GPIOs that the customer has remaining after other uses.

    Let me know if this resolves your issue.

    Best,

    Blake Sanders