The general purpose, programmable DSP56167 is an enhanced version of the DSP56166 with
added features. Designed primarily for speech coding and digital communications, the
DSP56167 has a built-in SD codec and Phase Lock Loop (PLL). This MPU-style DSP also
contains memories and digital peripherals that provide a cost effective, high performance
solution to many DSP applications. On-Chip Emulation (OnCEœ) circuitry provides
convenient and inexpensive debug facilities normally available only through expensive
external hardware. This RAM-based DSP contains a 2 K x 16 Program RAM and a 4 K x 16
data RAM. The Central Processing Unit (CPU) consists of three execution units operating in
parallel, allowing up to six operations to occur in an instruction cycle. This parallelism
greatly increases the effective processing speed of the DSP56167. The MPU-style
programming model and instruction set allow straightforward generation of efficient,
compact code. The DSP56167 is a member of Motorola’s DSP56100 family of 16-bit Digital
Signal Processors (DSPs).