How to connect SRAM with 16bit bus in imx6sx

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How to connect SRAM with 16bit bus in imx6sx

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hyoungkikim
Contributor IV

Hi all
i am not good at English , please understand

I'm trying to connect an external SRAM with 16 bits using i.MX6SX. In the old CPUs, when connecting a 16bit device, the A0 of the device was connected to A1 of the CPU with Byte Enable pin as A0, because CPU is 8 bit bus and a device is 16 bit bus . However, I heard that ARM CPUs have internal bus and external bus and they are different , and the A0 PIN is connected to internal A0 or internal A1 depending on the bus width which defined in chip select configuration .

so when i connect 16bit SRAM , i will connect CPU A0 PIN to the device A0 with Byte Enable
Is that correct?

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Rita_Wang
NXP TechSupport
NXP TechSupport

Hi @hyoungkikim ,

Your understandings are right.

Note:

AD0~AD15 are used as address lines, D16~D31 are used as data lines.

Hope this can do help for you

Wish you have a nice day

Best Regards

Rita

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Rita_Wang
NXP TechSupport
NXP TechSupport

I will help check it , please wait.

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