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ADSP-2109 Datasheet(PDF) 1 Page - Analog Devices |
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ADSP-2109 Datasheet(HTML) 1 Page - Analog Devices |
1 / 36 page FUNCTIONAL BLOCK DIAGRAM EXTERNAL ADDRESS BUS DATA MEMORY PROGRAM MEMORY EXTERNAL DATA BUS ADSP-2100 CORE ARITHMETIC UNITS SHIFTER MAC ALU MEMORY SERIAL PORTS SPORT 0 SPORT 1 DATA ADDRESS GENERATORS DAG 1 DAG 2 PROGRAM SEQUENCER PROGRAM MEMORY ADDRESS DATA MEMORY ADDRESS PROGRAM MEMORY DATA DATA MEMORY DATA TIMER REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a Low Cost DSP Microcomputers ADSP-2104/ADSP-2109 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 © Analog Devices, Inc., 1996 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 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. Fabricated in a high speed, submicron, double-layer metal CMOS process, the ADSP-2104/ADSP-2109 operates at 20 MIPS with a 50 ns instruction cycle time. The ADSP-2104L and ADSP-2109L are 3.3 volt versions which operate at 13.824 MIPS with a 72.3 ns instruction cycle time. Every instruction can execute in a single cycle. Fabrication in CMOS results in low power dissipation. The ADSP-2100 Family’s flexible architecture and compre- hensive instruction set support a high degree of parallelism. In one cycle the ADSP-2104/ADSP-2109 can perform all of the following operations: • Generate the next program address • Fetch the next instruction • Perform one or two data moves • Update one or two data address pointers • Perform a computation • Receive and transmit data via one or two serial ports The ADSP-2104 contains 512 words of program RAM, 256 words of data RAM, an interval timer, and two serial ports. The ADSP-2104L is a 3.3 volt power supply version of the ADSP-2104; it is identical to the ADSP-2104 in all other characteristics. The ADSP-2109 contains 4K words of program ROM and 256 words of data RAM, an interval timer, and two serial ports. The ADSP-2109L is a 3.3 volt power supply version of the ADSP-2109; it is identical to the ADSP-2109 in all other characteristics. |
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Similar Description - ADSP-2109 |
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