- ETRAX CRIS
The ETRAX CRIS is a series of
CPU s designed and manufactured byAxis Communications for use inembedded systems since 1993 [http://developer.axis.com/products/history/etrax_history.html] . The name is anacronym of the chip's features: Ethernet, Token Ring, AXis - Code Reduced Instruction Set. Token ring support has been taken out from the latest chips as it has become obsolete.Types of chips
TGA-1
The TGA-1, developed in 1986, was a communications transceiver for the
AS400 architecture.CGA-1
The CGA-1 was just a performance improvement over the TGA-1.
CGA-2
CGA-3
ETRAX-1
In 1993, by introducing 10 MBit Ethernet and Token Ring controllers, the name ETRAX was born.
ETRAX-2
ETRAX-3
ETRAX-4
The ETRAX-4 had improved performance than previous models, along with a
SCSI controller.ETRAX 100
The ETRAX 100 features a 10/100 MBit Ethernet Controller (hence the name), along with ATA and
Wide SCSI support.ETRAX 100LX
In the year 2000, the ETRAX 100LX design added an MMU, as well as
USB , synchronous serial andSDRAM support, and boosted the CPU performance up to 100 MIPS. Unlike devices with no MMU, it can run aLinux kernel with no modifications to the Linux memory management code.It features:
* A 32 bit RISC CPU core
* 10/100 MBit Ethernet controller
* 4 asynchronous serial ports
* 2 synchronous serial ports
* 2 USB ports
* 2 Parallel ports
* 4 ATA (IDE) ports
* 2 Narrow SCSI ports (or 1 Wide)
* Support for SDRAM, Flash, EEPROM, SRAMThe device comes in a 256-pin Plastic Ball Grid Array package and uses 350 mW power (typical).
See also: http://www.axis.com/products/dev_etrax_100lx/index.htm
ETRAX 100LX MCM
This
system-on-a-chip is an ETRAX 100LX plusflash memory ,SDRAM , and an ethernetPHYceiver . There were two versions commercialized: the ETRAX 100LX MCM 2+8 (2 MB flash, 8 MB SDRAM), and the ETRAX MCM 4-16 (4 MB flash, 16 MB SDRAM).See also: http://www.axis.com/products/dev_etrax_100lx_mcm/index.htm
ETRAX FS
Designed in 2005, and with full Linux 2.6 support, this chip features:
* A 200 MIPS, 32-bit RISC with 5 stage pipeline CRIS CPU core with 16 kB data and 16 kB instruction cache and a MMU.
* Two 10/100 Ethernet controllers
* Crypto accelerator, supporting AES, DES,3DES ,SHA-1 andMD5 .
* 128 kB on-chip RAM
* Amicroprogram mable I/O processor, supporting PC-Card, CardBus, PCI, USB FS/HS host, USB FS device, SCSI and ATA.The device comes in a 256-pin Plastic Ball Grid Array package and uses 465 mW power (typical).
See also: http://www.axis.com/products/dev_etrax_fs/index.htm
Development tools
oftware
A Linux-based cross compiler is provided by Axis and can be downloaded from their website [http://developer.axis.com/download/] along with a range of sample applications. Pre-compiled images are also available.
Hardware
Several hardware manufacturers offer 'developer boards': a
circuit board featuring an ETRAX chip and all the necessary I/O ports to develop (or even deploy) applications. These include:
* [http://www.axis.com/products/dev_82p/index.htm Axis Communications] AXIS 82 developer board
* [http://www.ipcas.com/products/embedded-pc-linux-box.html Embedded Linux PC] ' from ipcas
* [http://www.acmesystems.it/?id=4 ACME Systems] ' FOX board
* [http://www.elphel.com/ Elphel] Reconfigurable Network Camera based on Etrax FS and Xilinx Spartan 3e FPGA
* [http://www.free2move.us/ Free2move] 's embedded Linux system
*Rcotel Corporation 's single board Linux computer
* [http://dspfpga.com/ DSP&FPGA] 's industrial control unit
* [http://www.bbdevice.com/ BBDevice.com] remote control systemsSee also: http://developer.axis.com/old/showroom/index.html
External links
* http://developer.axis.com
SDK, how-tos, sample applications: http://www.acmesystems.it/?id=14
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