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barebox / Documentation / boards / s3c / Digi-a9m2440.rst
@Sascha Hauer Sascha Hauer on 26 Jun 2014 1 KB Documentation: Add new sphinxs docs
DIGI a9m2440
============

This CPU card is based on a Samsung S3C2440 CPU. The card is shipped with:

  * S3C2440\@400 MHz or 533 MHz (ARM920T/ARMv4T)
  * 16.9344 MHz crystal reference
  * SDRAM 32/64/128 MiB
     * Samsung K4M563233E-EE1H (one or two devices for 32 MiB or 64 MiB)
       * 2M x 32bit x 4 Banks Mobile SDRAM
       * CL2\@100 MHz (CAS/RAS delay 19ns)
       * 105 MHz max
       * column address size is 9 bits
       *  Row cycle time: 69ns
     * Samsung K4M513233C-DG75 (one or two devices for 64 MiB or 128 MiB)
       * 4M x 32bit x 4 Banks Mobile SDRAM
       * CL2\@100MHz (CAS/RAS delay 18ns)
       * 111 MHz max
       * column address size is 9 bits
       * Row cycle time: 63ns
     * 64ms refresh period (4k)
     * 90 pin FBGA
     * 32 bit data bits
     * Extended temperature range (-25°C...85°C)
  * NAND Flash 32/64/128 MiB
     * Samsung KM29U512T (NAND01GW3A0AN6)
       * 64 MiB 3,3V 8-bit
       * ID: 0xEC, 0x76, 0x??, 0xBD
     * Samsung KM29U256T
       * 32 MiB 3,3V 8-bit
       * ID: 0xEC, 0x75, 0x??, 0xBD
     * ST Micro
       * 128 MiB 3,3V 8-bit
       * ID: 0x20, 0x79
     * 30ns/40ns/20ns
  * I2C interface, 100 KHz and 400 KHz
     * Real Time Clock
       * Dallas DS1337
       * address 0x68
     * EEPROM
       * ST M24LC64
       * address 0x50
       * 16bit addressing
  * LCD interface
  * Touch Screen interface
  * Camera interface
  * I2S interface
  * AC97 Audio-CODEC interface
  * SD card interface
  * 3 serial RS232 interfaces
  * Host and device USB interface, USB1.1 compliant
  * Ethernet interface
    * 10Mbps, Cirrus Logic, CS8900A (on the CPU card)
  * SPI interface
  * JTAG interface

How to get the binary image:

Using the default configuration::

  make ARCH=arm a9m2440_defconfig

Build the binary image::

  make ARCH=arm CROSS_COMPILE=armv4compiler

**NOTE** replace the armv4compiler with your ARM v4 cross compiler.