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About max memory size connected to one CS of EIM of i.MX6

Question asked by yuuki on Sep 3, 2014
Latest reply on Sep 3, 2014 by igorpadykov

Dear all,

 

Our customer wants to connect FPGA which has a 256MByte spatial area to one CS of EIM.


According to the reference manual, the following contents are listed.

 

IMX6DQRM.pdf (Rev2):
22.1.1 Features(P.1007)
"26-bit external address bus, max memory size can be 128 MByte (1 Gigabit)."

 

However, according to the datasheet, there is 32bit mode.

IMX6DQIEC.pdf (Rev3):
Table 35. EIM Internal Module Multiplexing (P.48)

In this case I think that 256MByte is supported.
2^26 *4 byte =256MByte

 

Can FPGA of 256MByte spatial area be connected to one CS?

 

May I have advice?

 

Best Regards,
Yuuki

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