Memory; Ddr2 Sdram Memory; Nand Flash Memory; Chip Selects - Digi ConnectCore Series Hardware Reference Manual

ConnectCore f or i .M X 5 1

Memory

DDR2 SDRAM Memory

The ConnectCore for i.MX51 module provides up to 512 MBytes of DDR2-400 SDRAM memory.
The module can support up to four 16-bit, 128Mbit, DDR2-400 chips, configured as two banks
of 32-bits of 128Mbits DDR2-400 memory.

NAND Flash Memory

The ConnectCore for i.MX51 module provides 512Mbytes of NAND-Flash memory. On the
module a 512MByte, 2Kbyte page, NAND-Flash chip is used.
Options for other densities NAND Flash devices are available depending on the module
variant.

Chip selects

Chip Select Memory Map

The ConnectCore for i.MX51 has eight chip select signals, two for dynamic memory and six for
static memory. The table below shows the memory map of these chip select signals.
Name Pin
DRAM_CS0# Y4
DRAM_CS1# Y3
EIM_CS0 W6
EIM_CS1 Y6
EIM_CS2 Y7
EIM_CS3 AC3
EIM_CS4 AA6
EIM_CS5 AA5
© 2011 Digi International, Inc.
Address range Sixe [Mb]
0x9000_000- 256M
0x9FFF_FFFF
0xA000_0000- 256M
0xAFFF_FFFF
0xB000_000- 128M
0xB7FF_FFFF
0xB800_000- 128M
0xBFFF_FFFF
0xC000_000- 128M
0xC7FF_FFFF
0xC800_000- 64M
0xCBFF_FFFF
0xCC00_000- 32M
0xCDFF_FFFF
0xCE00_000- 32M (minus 64K)
0xCFFE_FFFF
Usage Comments
DDR2 bank 0 First bank on module
DDR2 bank 1 Second bank on module
External CS0#
External CS1#
External CS2#
External CS3#
External CS4#
External CS5# Used for Ethernet Controller on module
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