FEATURES

? Efficient 24-bit DSP56000 core

? Up to 40 Million Instructions Per Second (MIPS), 25 ns instruction cycle at

80 MHz; up to 33 MIPS, 30.3 ns instruction cycle at 66 MHz

? Up to 240 Million Operations Per Second (MOPS) at 80 MHz; up to 198 MOPS

at 66 MHz

? Performs a 1024-point complex Fast Fourier Transform (FFT) in 59,898 clocks

? Highly parallel instruction set with unique DSP addressing modes

? Two 56-bit accumulators including extension bits

? Parallel 24

′

24-bit multiply-accumulate in 1 instruction cycle (2 clock cycles)

? Double precision 48

′

48-bit multiply with 96-bit result in 6 instruction cycles

? 56-bit addition/subtraction in 1 instruction cycle

? Fractional and integer arithmetic with support for multiprecision arithmetic

? Hardware support for block-floating point FFT

? Hardware nested DO loops

? Zero-overhead fast interrupts (2 instruction cycles)

? Four 24-bit internal data buses and three 16-bit internal address buses for

maximum information transfer on-chip