1. ARM (2008). Cortex-M3, Technical Reference Manual.
2. Boggs M. S., Fulton T. L., Hausman S., McNabb G., McNutt A., Stimmel S. W. (2003). Programmable Logic Controller - Method, System and Apparatus. US Patent No. US 6,574,743 B1.
3. Cenelec (2013). EN 61131-3, Programmable Controller - Part 3: Programming Languages, International Standard, Management Centre, Avenue Marnix 17, B- 1000 Brussels.
4. Chmiel M., Mocha J., Hrynkiewicz E., Milik A. (2001). Central Processing Units for PLC implementation in Virtex-4 FPGA, Proc. of the 18th IFAC World Congress, August 28-September 2, Milano, Italy.
5. Chmiel M. and Hrynkiewicz E. (2005). Remarks on Parallel Bit-Byte CPU structures of Programmable Logic Controllers. In: Design of Embedded Control Systems, Section V, (ed. Adamski M. A., Karatkevich A., Wegrzyn M.), Springer, pp. 231-242.