LPC MicrocontrollersのトピックSDRAM burst length

SDRAM burst length

lpcware — Wed, 15 Jun 2016 18:20:51 GMT

Content originally posted in LPCWare by tvink on Mon Feb 23 09:52:25 MST 2015
Hi,

I am reading section 21.7.5 in the users manual UM10430.

The doc says that to be used with the EMC, a SDRAM must be configured for a 128-bit sequential burst.

My SDRAM supports burst lengths of 1,2,4,8 and full page. The page size for this device is 256.. as I think most 16 bit x 4 bank (64-MBIT) parts are. This is a supported SDRAM size so what am I misunderstanding?

Thanks

Re: SDRAM burst length

lpcware — Wed, 15 Jun 2016 18:20:52 GMT

Content originally posted in LPCWare by mc on Mon Feb 23 10:04:00 MST 2015
Hi tvink,
For 16-bit SDRAM the burst size will be 8. for 32-bit SDRAM device the burst size is 4.
Can You let us know the part number of SDRAM?

Re: SDRAM burst length

lpcware — Wed, 15 Jun 2016 18:20:53 GMT

Content originally posted in LPCWare by tvink on Mon Feb 23 10:47:43 MST 2015
Thanks for the quick reply.

The SDRAM is: IS42S16400J-6TL from ISSI.

Tony