参数资料
型号: MC68HC05C9EFB
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 65/144页
文件大小: 1628K
代理商: MC68HC05C9EFB
MC68HC05C9E
Advance Information
MOTOROLA
Memory
27
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Advance Information — MC68HC05C9E
Section 2. Memory
2.1 Contents
2.2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.3
RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.4
ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.5
ROM Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
2.6
I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.2 Introduction
The microcontroller unit (MCU) has a 16-Kbyte memory map. The
memory map consists of:
Input/output (I/O), control, and status registers
User random-access memory (RAM)
User read-only memory (ROM)
Self-check ROM
Reset and interrupt vectors
See Figure 2-1 and Figure 2-2.
Two control bits in the option register ($3FDF) allow the user to switch
between RAM and ROM at any time in two special areas of the memory
map, $0020–$004F (48 bytes) and $0100–$017F (128 bytes).
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