參數(shù)資料
型號: MC68HC11ED0CFU3
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, 3 MHz, MICROCONTROLLER, PQFP44
封裝: QFP-44
文件頁數(shù): 26/108頁
文件大?。?/td> 1672K
代理商: MC68HC11ED0CFU3
Technical Summary
MC68HC11ED0 — Rev. 1.0
Central Processor Unit (CPU)
Central Processor Unit (CPU)
3.2 Introduction
This section presents information on M68HC11:
Central processor unit (CPU) architecture
Data types
Addressing modes
Instruction set
Special operations such as subroutine calls and interrupts
The CPU is designed to treat all peripheral, input/output (I/O), and
memory locations identically as addresses in the 64-Kbyte memory map.
This is referred to as memory-mapped I/O. I/O has no instructions
separate from those used by memory. This architecture also allows
accessing an operand from an external memory location with no
execution time penalty.
3.3 CPU Registers
M68HC11 CPU registers are an integral part of the CPU and are not
addressed as if they were memory locations. The seven registers,
discussed in the following paragraphs, are shown in Figure 3-1.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相關(guān)PDF資料
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