參數(shù)資料
型號: LR4500
廠商: LSI Corporation
英文描述: Superscalar Microprocessor(超標量微處理器)
中文描述: 超標量微處理器(超標量微處理器)
文件頁數(shù): 13/172頁
文件大?。?/td> 1142K
代理商: LR4500
1-1
Chapter 1
Introduction
This chapter provides an overview and defines the features of the
MiniRISC LR4500 Superscalar Microprocessor reference device.
1.1 LR4500 Overview
The LR4500 is a chip implementation of the MiniRISC CW4011
microprocessor core and shell. It is the second LSI Logic implementation
of a 32-bit MIPS II compatible, superscalar CPU. As shown in
Figure 1.1
,
the LR4500 contains the following circuitry, housed on an evaluation
board:
The maximum configuration CW4011 shell, which is an unencrypted
Verilog model that contains
CW4011 core
Multiply/Divide unit (MDU)
Instruction cache (I-cache)
Data cache (D-cache)
Memory Management Unit (MMU) without Translation
Look-aside Buffer (TLB)
Write Back Buffer (WB).
You can configure certain modules in the shell by programming the
Configuration Register in CW4011 Coprocessor 0 (CP0). For
example, you can turn off the MDU and the WB. Depending on the
application, the LR4500 generally uses all modules.
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