By Dake Liu
This publication offers layout equipment for electronic sign Processors and alertness particular guideline set Processors, in response to the author's vast, business layout adventure. Top-down and bottom-up layout methodologies are offered, offering important suggestions for either scholars and training layout engineers. assurance contains layout of internal-external information varieties, software particular guideline units, micro architectures, together with designs for datapath and keep an eye on course, in addition to reminiscence sub structures. Integration and verification of a DSP-ASIP processor are mentioned and bolstered with wide examples. FOR teachers: to acquire entry to the options guide for this name easily check in on our textbook site (textbooks.elsevier.com)and request entry to the pc technological know-how or Electronics and electric Engineering topic sector. as soon as authorized (usually inside of one enterprise day) it is possible for you to to entry the entire instructor-only fabrics in the course of the ";Instructor Manual"; hyperlink in this book's complete online page. * guide set layout for program particular processors according to speedy software profiling * Micro structure layout technique * Micro structure layout info in response to actual examples * Extendable structure layout protocols * layout for effective reminiscence sub structures (minimizing on chip reminiscence and price) * genuine instance designs in response to broad, business reports
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Extra info for Embedded DSP Processor Design, : Application Specific Instruction Set Processors
Custom design of an ASIP DSP Processor is based on experience and is error prone. Design automation has been investigated and can be used to replace the custom ASIP design. 27. 27 presents the research on ASIP design automation. The ASIP design automation can be divided into three steps. The first step is the architecture exploration (selecting or generating an architecture and assembly instruction set according to the application analyses). Different profilers were designed by researchers, but the constraint specification tool has not been investigated.
Fixed-point numbers are useful when floating-point unit (FPU) is not used. Actually, most low-cost embedded processors, including DSP processors, do not have an FPU. In this book,we design mainly fixed-point DSP processors without hardware FPU. A fixed-point number may be written as M. ” is the radix point, and F represents the fractional part. , 2 for binary, 10 for decimal, or 16 for hexadecimal). In this book, only decimal will be discussed, and b is implicitly equal to 2. , 0Ϫ1 in binary, 0Ϫ9 in decimal, or 0ϪF in hexadecimal), and k is positive or negative weight (1 or Ϫ1).
CFG in this step stands for control flow graph, and it will be discussed in detail in Chapters 6 and 8. The second step is to specify an ADL (Architecture Description Language) to model the instruction set and architecture. It is very difficult. The language must be easy so that ASIP designers can use it in modeling the design. However, if an ADL is easy, it cannot carry sufficient information to generate all tools and architectures. For example, tool generation requires sufficient modeling of the instruction set; and the hardware (datapath, control path) generation requires sufficient modeling of microarchitecture (for example, structure of hardware multiplexing) and its function (to be discussed in Chapter 10).