FEATURES

Digital Signal Processing Core

? Efficient, object code compatible with the 24-bit DSP56000 core engine

? Up to 40.5 Million Instructions Per Second (MIPS)—24.7 ns instruction cycle at

81 MHz; up to 324 Million Operations Per Second (MOPS) at 81 MHz

? Highly parallel instruction set with unique DSP addressing modes

? Two 56-bit accumulators including extension byte

? Parallel 24x24-bit multiply-accumulate in 1 instruction cycle (2 clock cycles)

? Double precision 48x48-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 Fast Fourier Transforms (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

simultaneous accesses to one program and two data memories

? Fabricated in high-density CMOS