Overview
The LC83015E is a digital signal processor IC designed for medium- and high-class home audio systems, such as AV amplifiers, mini, super-mini and car audio component systems.

FEATUREs
• 80 ns cycle time at fs = 48kHz (256 cycles/fs)
• Dual-Harvard architecture allows single-cycle stereo signal integration and playback, with two of each of the following.
    · 24 × 16-bit fixed decimal point multiplier.
    · 32-bit arithmetic operation and 24-bit arithmetic logic operation ALU/shifter.
    · 32-bit accumulator.
    · 8 × 32-bit temporary storage registers.
    · 64 × 24-bit internal data RAM.
    · 128 × 16-bit internal coefficient RAM.
    · 304 × 16-bit internal coefficient ROM.
• Large program memory.
    · 1024 × 32-bit standard program ROM.
    · 256 × 32-bit user program RAM.
• Standard program ROM.
    · Sound-field simulation library.
        Auditorium simulation.
        Stereo, 3-band graphic equalizer.
        12-band spectrum analyzer.
    · Karaoke function library.
        Pitch shift (realized in program RAM)
        Vocal mute.
        Microphone echo.
• Coefficient ROM.
    · Logarithmic conversion coefficients.
• Audio interface.
    · 2 input channels compatible with a variety of formats.
    · 3 output channels compatible with a variety of 32/64fs formats.
• External memory interface.
    · DRAM interface.
        120 ns (maximum) RAS access time.
        1Mbyte (256Kbyte × 4) or 256Kbyte (64Kbyte × 4).
    1 or 2 units.
    · SRAM/ROM interface.
        100 ns (maximum) address access time.
        1Mbyte (128Kbyte × 8) or 256Kbyte (32Kbyte × 8).
        1 unit.
    · Pseudo-SRAM interface.
        70 ns (maximum) CE access time.
        1Mbyte (128Kbyte × 8) or 256Kbyte (32Kbyte × 8).
        1 unit.