Table 3: Resource utilization of the Simple Observer (SO) and Composite Observer (CO) Control scheme using Quartus II tool.

SO CO Family Cyclone II Cyclone II Device EP2C8T144C8 EP2C8T144C8 Total logic elements 1,779/8,256 (21%) 5,517/8,256 (66%) Combinational with no register 1448 4981 Register only 16 13 Combinational with a register 315 523 Logic element usage by number of LUT inputs 4 input functions 215 662 3 input functions 1207 3967 <=2 input functions 341 875 Register only 16 13 Combinational cells for routing 13 32 Logic elements by mode Normal mode 574 1480 Arithmetic mode 1189 4024 Total registers 331/8,256 (4%) 536/8,256 (6%) Total LABs 158/516(30%) 452/516 (87%) Total pins 9/85 (10%) 9/85 (10%) M4Ks 2/36 (5%) 2/36 (5%) Total memory bits 5,120/165,888 (3%) 5,120/165,888 (3%) Total RAM block bits 9,216/165,888 (5%) 9,216/165,888 (5% ) Embedded Multiplier 9-bit elements 36/36 (100%) 36/36 (100%)