DM816x memory space has 1GB, how do I extend the memory capacity?

Titusc

Hi all,

This is probably a newbie question...

In the DM816x datasheet http://www.ti.com/lit/ug/sprugx8/sprugx8.pdf , in section 7.1.2, it stated that the DDR3 controller has 1GB of memory space.

In the DM8168 DVM, http://support.spectrumdigital.com/boards/evm816x/revg/files/evm816x_TechRef_RevG.pdf . The board has 2GB of DDR3 soldered on.

How do we extend the memory space to accommodate more memory capacity? And how do you know how much memory you need?

Thanks in advance,
Titus

over 13 years ago

0 Steve Clynes over 13 years ago

TI__Mastermind 43875 points

Each controller is 1GB but there are 2 controllers :)

BR,

Steve

0 Titusc over 13 years ago in reply to Steve Clynes

Intellectual 660 points

Cool, thanks Steve!

So if I want to support more memory, is there a way to do it?

Titus

0 MarcPyne over 13 years ago in reply to Titusc

TI__Mastermind 25055 points

Hello,

As Steve mentioned, the total amount of addressable memory space supported on this device is 2GB. This can be accomplished by using two 4Gb (x16-bit only) devices on each EMIF.

Regards,
Marc

0 Titusc over 13 years ago in reply to MarcPyne

Intellectual 660 points

Hi there,

Just wondering how you determine the memory capacity a design needs?

Thanks,
Titus

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DM816x memory space has 1GB, how do I extend the memory capacity?