Critical Link, LLC MitySOM
www.criticallink.com MitySOM-1808 Processor Card
5-MAR-2014
3 Copyright © 2013, Critical Link LLC
Specifications Subject to Change
EMIFA / NAND FLASH Interface
The Asynchronous External Memory Interface (EMIFA) interface available on the
AM1808 is available on the SO-DIMM-200 connector. The EMIFA interface includes 3
chip select spaces. The EMIF interface supports multiple data width transfers and bus
wait state configurations based on chip select space. 8, and 16 bit data word sizes may be
used.
Up to 512 MB of on-board NAND FLASH memory is connected to the AM1808 using
the EMIFA bus. The FLASH memory is 8 bits wide and is connected to the third chip
select line of the EMIFA (CE1). The FLASH memory is typically used to store the
following types of data:
- ARM Linux / Windows Embedded CE / QNX embedded root file-system
- runtime ARM software
- runtime application data (non-volatile storage)
AM1808 Camera and Video Interfaces
The AM1808 includes an optional video port I/O interface commonly used to drive LCD
screens as well as a camera input interface. These interfaces have been routed directly to
the SO-DIMM-200 connector.
Debug Interface
The JTAG signals for the AM1808 processor have been brought out to a Hirose header
that is intended for use with an available Critical Link breakout adapter. This header can
be removed for production units; please contact your Critical Link representative for
details.
This adapter is not included with individual modules but is included with each Critical
Link Development Kit that is ordered. If an adapter, Critical Link (CL) part number 80-
000286, is needed please contact your Critical Link representative.
Software and Application Development Support
Users of the MitySOM-1808 are encouraged to develop applications using the MitySOM-
1808 software development kit provided by Critical Link LLC. The development kit
includes an implementation of an OpenEmbedded board support package providing an
Angstrom based Linux distribution and compatible gcc compiler tool-chain with
debugger.
Growth Options
The MitySOM-1808 has been designed to support several upgrade options. These options
include various speed grades, memory configurations, and operating temperature
specifications including commercial and industrial temperature ranges. The available
options are listed in the section below containing ordering information. For additional
ordering information and details regarding these options, or to inquire about a particular
configuration not listed below, please contact a Critical Link sales representative.
