参数资料
型号: MC68HC05RC8FN
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44
封装: PLASTIC, LCC-44
文件页数: 70/122页
文件大小: 2962K
代理商: MC68HC05RC8FN
Resets
Internal Resets
MC68HC05RC16 — Rev. 3.0
General Release Specification
Resets
5.5.2.5 COP Register
The COP register is shared with the LSB of an unimplemented user
interrupt vector as shown in Figure 5-3. Reading this location returns
whatever user data has been programmed at this location. Writing a zero
to the COPR bit in this location clears the COP watchdog timer.
5.5.3 Illegal Address
An illegal address reset is generated when the CPU attempts to fetch an
instruction from I/O address space ($0000 to $001F).
Address:
$3FF0
BIt 7
654321
Bit 0
Read:
X
Write:
COPR
Reset:
———————
0
= Unimplemented
Figure 5-3. COP Watchdog Timer Location
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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