External Memory

[jm_it]

Posted on March 11, 2004 at 06:29

External Memory

[jm_it]

Posted on March 02, 2004 at 08:46

Hi,

I work on ST10F168 and i use external ram by EBC in 16 bits demux mode.

There are 4 Chip Select available for ram : CS1,CS2,CS3,CS4

and 23 adress bits : A1->A23

So, there are (2^23 * 4) bytes accessible <=> 32Mo

I would to know if i am right and if i can declare an external memory map of 32 Mo !

Thanks for any suggestions !

Regards,

Jim

[charles239955_st]

Posted on March 02, 2004 at 10:23

Hello Jim,

Unfortunatly the ST10 address range is limited to 16Mo (internal Flash included) because we only use 24 bit to create the total absolute address.

Bye

[jm_it]

Posted on March 08, 2004 at 09:35

Ok but 16*8bits or 16M*16bits ?

[charles239955_st]

Posted on March 11, 2004 at 06:29

16M*8bits