AnsweredAssumed Answered

iMX8MQ 8GB memory

Question asked by Matthias Ehrenfried on Apr 2, 2020
Latest reply on Apr 2, 2020 by Yuri Muhin
Branched from an earlier discussion

Hi Yuri,

you have mentioned the A53 address space is limited to 4GB

 

How should I interpret the two different memory maps for Cortex A53 and M4

A53:

1_0000_0000 1_3FFF_FFFF DDR Address 1024MB DDR Memory (Quad-A53 only

    4000_0000     FFFF_FFFF DDR Address 3072MB DDR Memory (All modules)

 

 M4:

    4000_0000     BFFF_FFFF DDR Address 2048MB DDR Memory

 

Does this mean A53 and M4 Cores utilize 6GB DDR Memory space in total?

The total addressable space is still 8GB (2^33bit according Reference Manual 3.2.5.7) or is it mandatory, that the M4 memory space is within the 4GB boundary?

 

Regards,

Matthias

Outcomes