參數(shù)資料
型號: MC68HC05C9ACFN
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 81/160頁
文件大?。?/td> 783K
代理商: MC68HC05C9ACFN
MC68HC05C9A Rev. 4.0
General Release Specification
MOTOROLA
Memory
27
NON-DISCLOSURE
AGREEMENT
REQUIRED
General Release Specification — MC68HC05C9A
Section 2. Memory
2.1 Contents
2.2 Introduction
The MCU has a 16-Kbyte memory map. The memory map consists of
registers (I/O, control and status), user RAM, user ROM, self-check
ROM, and reset and interrupt vectors as shown in Figure 2-1 and
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).
2.3 RAM
The main user RAM consists of 176 bytes at $0050–$00FF. This RAM
area is always present in the memory map and includes a 64-byte stack
area. The stack pointer can access 64 bytes of RAM in the range $00FF
down to $00C0.
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