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volt.tech Latest Questions

ashishgawade
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ashishgawade
Asked: October 13, 2022In: Microcontroller

RA6M1 External SRAM Interface

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The RA6M1 had an external 8-bit external machine that can be used for SRAM access. We need to access a single 8 MB SRAM part. We will need 23 bits of the address to access the part. Can the RA6M1 ...Read more

The RA6M1 had an external 8-bit external machine that can be used for SRAM access. We need to access a single 8 MB SRAM part. We will need 23 bits of the address to access the part.
Can the RA6M1 access an 8- bit wide SRAM part with 3 bytes of address?

Thanks

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externalinterfacemcumicrocontrollerra6m1renesassram
  1. nidhi singh
    Added an answer on October 15, 2022 at 9:54 am

    Hi, Thanks for reaching out to Renesas Engineering Community. As mentioned in Table15.4 in the RA6M1 primer there are 13 address output pins( A12- A00) for each of the 8 CS areas of 8KB. thus, I suppose it isn't possible to connect all 23 address bits simultaneously. Let us know if there are any addRead more

    Hi,

    Thanks for reaching out to Renesas Engineering Community.
    As mentioned in Table15.4 in the RA6M1 primer there are 13 address output pins( A12- A00) for each of the 8 CS areas of 8KB. thus, I suppose it isn’t possible to connect all 23 address bits simultaneously.

    Let us know if there are any additional questions.

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  • 1 Answer
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nidhi singh
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nidhi singh
Asked: August 30, 2022In: Microcontroller

External Flash for RENESAS RA4M1

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Hello, How we can add external flash for RENESAS RA4M1 Thanks

Hello,

How we can add external flash for RENESAS RA4M1

Thanks

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externalflashmicrocontrollerra4m1renesasRenesas Microcontroller
  1. Sandeep kumar
    Added an answer on August 31, 2022 at 4:13 pm

    Hi , The RA4M1 does not accept external parallel buses.  In order to add external memory to this device, for instance, you would need to use the IIC or SPI interfaces. Thanks

    Hi ,

    The RA4M1 does not accept external parallel buses. 
    In order to add external memory to this device, for instance, you would need to use the IIC or SPI interfaces.
    Thanks
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  • 1 Answer
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