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ADSP-2187NBCA-320 Datasheet(PDF) 2 Page - Analog Devices |
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ADSP-2187NBCA-320 Datasheet(HTML) 2 Page - Analog Devices |
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2 / 45 page  ADSP-218xN Series –2– REV. 0 VisualDSP++ and EZ-KIT Lite are trademarks of Analog Devices, Inc. GENERAL DESCRIPTION The ADSP-218xN series consists of six single chip micro- computers optimized for digital signal processing applica- tions. The high-level block diagram for the ADSP-218xN series members appears on the previous page. All series members are pin-compatible and are differentiated solely by the amount of on-chip SRAM. This feature, combined with ADSP-21xx code compatibility, provides a great deal of flexibility in the design decision. Specific family members are shown in Table 1. ADSP-218xN series members combine the ADSP-2100 family base architecture (three computational units, data address generators, and a program sequencer) with two serial ports, a 16-bit internal DMA port, a byte DMA port, a programmable timer, Flag I/O, extensive interrupt capa- bilities, and on-chip program and data memory. ADSP-218xN series members integrate up to 256K bytes of on-chip memory configured as up to 48K words (24-bit) of program RAM, and up to 56K words (16-bit) of data RAM. Power-down circuitry is also provided to meet the low power needs of battery-operated portable equipment. The ADSP-218xN is available in a 100-lead LQFP package and 144-Ball Mini-BGA. Fabricated in a high-speed, low-power, 0.18 µm CMOS process, ADSP-218xN series members operate with a 12.5 ns instruction cycle time. Every instruction can execute in a single processor cycle. The ADSP-218xN’s flexible architecture and comprehen- sive instruction set allow the processor to perform multiple operations in parallel. In one processor cycle, ADSP-218xN series members can: • Generate the next program address • Fetch the next instruction • Perform one or two data moves • Update one or two data address pointers • Perform a computational operation This takes place while the processor continues to: • Receive and transmit data through the two serial ports • Receive and/or transmit data through the internal DMA port • Receive and/or transmit data through the byte DMA port •Decrement timer DEVELOPMENT SYSTEM Analog Devices’ wide range of software and hardware development tools supports the ADSP-218xN series. The DSP tools include an integrated development environment, an evaluation kit, and a serial port emulator. VisualDSP++™ is an integrated development environment, allowing for fast and easy development, debug, and deploy- ment. The VisualDSP++ project management environment lets programmers develop and debug an application. This environment includes an easy-to-use assembler that is based on an algebraic syntax; an archiver (librarian/library build- er); a linker; a PROM-splitter utility; a cycle-accurate, instruction-level simulator; a C compiler; and a C run-time library that includes DSP and mathematical functions. Debugging both C and assembly programs with the VisualDSP++ debugger, programmers can: • View mixed C and assembly code (interleaved source and object information) • Insert break points • Set conditional breakpoints on registers, memory, and stacks • Trace instruction execution • Fill and dump memory • Source level debugging The VisualDSP++ IDE lets programmers define and manage DSP software development. The dialog boxes and property pages let programmers configure and manage all of the ADSP-218xN development tools, including the syntax highlighting in the VisualDSP++ editor. This capa- bility controls how the development tools process inputs and generate outputs. The ADSP-2189M EZ-KIT Lite™ provides developers with a cost-effective method for initial evaluation of the powerful ADSP-218xN DSP family architecture. The ADSP-2189M EZ-KIT Lite includes a stand-alone ADSP- 2189M DSP board supported by an evaluation suite of VisualDSP++. With this EZ-KIT Lite, users can learn about DSP hardware and software development and evalu- ate potential applications of the ADSP-218xN series. The ADSP-2189M EZ-KIT Lite provides an evaluation suite of the VisualDSP++ development environment with the C compiler, assembler, and linker. The size of the DSP erxecutable that can be built using the EZ-KIT Lite tools is limited to 8K words. Table 1. ADSP-218xN DSP Microcomputer Family Device Program Memory (K Words) Data Memory (K Words) ADSP-2184N 4 4 ADSP-2185N 16 16 ADSP-2186N 8 8 ADSP-2187N 32 32 ADSP-2188N 48 56 ADSP-2189N 32 48 |
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