Current VLSI digital signal processors perform various orthogonal tramsforms using multiplier accumularor as the arithmetic unit, which often suffers from robustness problem. A new type VLSI transform microprocessor using the fast rotator as the arithmetic core is presented. It can very efficiently perform various orthogonal transforms by Givens rotation sequence with the best robustness. Based on image processing application a PTEE experimental chip is designed, which includes three parallel transform engines.... Current VLSI digital signal processors perform various orthogonal tramsforms using multiplier accumularor as the arithmetic unit, which often suffers from robustness problem. A new type VLSI transform microprocessor using the fast rotator as the arithmetic core is presented. It can very efficiently perform various orthogonal transforms by Givens rotation sequence with the best robustness. Based on image processing application a PTEE experimental chip is designed, which includes three parallel transform engines. It is fabricated by using 0.8μm double layer metal CMOS technology. The functionality of the chip tested is correct. The chip can work at the frequency of 40MHz with high throughput of 960million shift addition operations. PTEE chip is flexible, programmable and extendable. Equipped with the chip, a compiler is developed to generate the instruction sequence according to the format of PTFE control signals for the frequently used orthogonal transforms in the image processing. |