ADSP-2104KP-80

GENERAL DESCRIPTION

The ADSP-2104 and ADSP-2109 processors are single-chip microcomputers optimized for digital signal processing (DSP) and other high speed numeric processing applications. The ADSP-2104/ADSP-2109 processors are built upon a common core. Each processor combines the core DSP architecture— computation units, data address generators, and program sequencer—with differentiating features such as on-chip program and data memory RAM (ADSP-2109 contains 4K words of program ROM), a programmable timer, and two serial ports.

SUMMARY

16-Bit Fixed-Point DSP Microprocessors with On-Chip Memory
Enhanced Harvard Architecture for Three-Bus Performance: Instruction Bus & Dual Data Buses
Independent Computation Units: ALU, Multiplier/ Accumulator, and Shifter
Single-Cycle Instruction Execution & Multifunction Instructions
On-Chip Program Memory RAM or ROM & Data Memory RAM
Integrated I/O Peripherals: Serial Ports and Timer

FEATURES

20 MIPS, 50 ns Maximum Instruction Rate
Separate On-Chip Buses for Program and Data Memory
Program Memory Stores Both Instructions and Data (Three-Bus Performance)
Dual Data Address Generators with Modulo and Bit-Reverse Addressing
Efficient Program Sequencing with Zero-Overhead Looping: Single-Cycle Loop Setup
Automatic Booting of On-Chip Program Memory from Byte-Wide External Memory (e.g., EPROM )
Double-Buffered Serial Ports with Companding Hardware, Automatic Data Buffering, and Multichannel Operation
Three Edge- or Level-Sensitive Interrupts
Low Power IDLE Instruction
PLCC Package