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SM320C26BGBM Datasheet(PDF) 1 Page - Texas Instruments |
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SM320C26BGBM Datasheet(HTML) 1 Page - Texas Instruments |
1 / 42 page SM320C26B www.ti.com SGUS069A – NOVEMBER 2012 – REVISED NOVEMBER 2012 DIGITAL SIGNAL PROCESSOR 1 Digital Signal Processor • Block Moves for Data or Program Management 1.1 Features • Repeat Instructions for Efficient Use of 1 • 100-ns Instruction Cycle Time Program Space • 1568 Words of Configurable On-Chip Data and • Eight Auxiliary Registers and Dedicated Program RAM Arithmetic Unit for Indirect Addressing • 256 Words of On-Chip Program ROM • Serial Port for Direct Code Interface • 128K Words of Data/Program Space • Synchronization Input for Synchronous • Pin-for-Pin Compatible with the SMJ320C25 Multiprocessor Configurations • 16 Input and 16 Output Channels • Wait States for Communication to • 16-Bit Parallel Interface Slow-Off-Chip Memories or Peripherals • Directly Accessible External Data Memory • On-Chip Timer for Control Operations Space • Three External Maskable User Interrupts • Global Data Memory Interface • Input Pin Polled by Software Branch • 16-Bit Instruction and Data Words Instruction • 32-Bit ALU and Accumulator • Programmable Output Pin for Signaling External Devices • Single-Cycle Multiply or Accumulate Instructions • 1.6- μm CMOS Technology • 0 to 16-Bit Scaling Shifter • Single 5-V Supply • Bit Manipulation and Logical Instructions • 68-Pin Leaded Ceramic Chip Carrier (FJ Suffix) • Instruction Set Support for Floating-Point Operations, Adaptive Filtering, and Extended- Precision Arithmetic 1.2 Description The SM320C26B Digital Signal Processor is a VLSI digital signal processor and peripheral. The SM320C26B supports a wide range of digital signal processing applications, such as telecommunications, modems, image processing, speech processing, spectrum analysis, audio processing, digital filtering, high-speed control, graphics, and other computation intensive applications. With a 100-ns instruction cycle time and an innovative memory configuration, the SM320C26B performs operations necessary for many real time digital signal processing algorithms. Since most instructions require only one cycle, the SM320C26B is capable of executing ten million instructions per second. On- chip programmable data/program RAM of 1568 words of 16 bits, on-chip program ROM of 256-words, direct addressing of up to 64K-words of external program and 64K-words of data memory space, and multiprocessor interface features for sharing global memory minimize unnecessary data transfers to take full advantage of the capabilities of the processor. The SM320C26B scaling shifter has a 16-bit input connected to the data bus and a 32-bit output connected to the ALU. The scaling shifter produces a left shift of 0 to 16 bits on the input data, as programmed in the instruction. The LSBs of the output are filled with zeroes, and the MSBs may be either filled with zeroes or sign-extended, depending upon the status programmed into the SXM (sign-extension mode) bit of status register ST1. NOTE The SM320C26B is intended to support existing designs, and is not recommended for new designs. The datasheet has references to design software and hardware tools that may no longer be available. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to Copyright © 2012, Texas Instruments Incorporated specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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