User`s manual

High Performance Low Cost Embedded Systems
SDRAM
The mini2440 has two 32M bytes (64M bytes in total) SDRAMs (HY57V561620FTP),
commonly known as memory. They are deployed in parallel to form a 32-bit data bus which speeds
up data transmission. To work this way, both use nGCS6. According to section 5-2 of the CPU
manual this configuration implies their physical addresses start at 0x30000000. The following
SDRAM diagram is extracted from the mini2440 schematic.
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