Z89C00 Datasheet PDF - Zilog

GENERAL DESCRIPTION
The Z89C00 is a second generation, 16-bit, fractional, two’s complement CMOS Digital Signal Processor (DSP). Most instructions, including multiply and accumulate, are accomplished in a single clock cycle. The processor contains 1 Kbyte of on-chip data RAM (two blocks of 256 16-bit words), 4K words of program ROM and 64K words of program memory addressing capability.
   
FEATURES
■ 16-Bit Single Cycle Instructions
■ Zero Overhead Hardware Looping
■ 16-Bit Data
■ Ready Control for Slow Peripherals
■ Single Cycle Multiply/Accumulate (100 ns)
■ Six-Level Stack
■ 512 Words of On-Chip RAM
■ Static Single-Cycle Operation
■ 16-Bit I/O Port
■ 4K Words of On-Chip Masked ROM
■ Three Vectored Interrupts
■ 64K Words of External Program Address Space
■ Two Conditional Branch Inputs/Two User Outputs
■ 24-Bit ALU, Accumulator and Shifter
■ IBM® PC Development Tools