參數(shù)資料
型號: MC68HC05X4DW
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: HCMOS Microcontroller Unit
中文描述: 8-BIT, MROM, 2.2 MHz, MICROCONTROLLER, PDSO28
封裝: SOIC-28
文件頁數(shù): 57/156頁
文件大小: 926K
代理商: MC68HC05X4DW
MC68HC05X4 Rev 1.0
MOTOROLA
Memory
57
Memory
General Description
Contents
Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Non-volatile memory (NVM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
MCU registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
MCAN registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Memory map
The MC68HC05X4 has an 8K byte memory map consisting of MCAN
control registers, user ROM or EPROM user RAM, bootloader ROM,
and I/O (as illustrated in
Figure 1
).
RAM
The user RAM consists of 176 bytes of memory space shared with a 64
byte stack area. The stack begins at address $00FF. The stack pointer
can access 64 bytes of RAM in the range $00C0 to $00FF.
NOTE:
Using the stack area for data storage or temporary work locations
requires care, to prevent the data from being overwritten due to stacking
from an interrupt or subroutine call.
1-mem
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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