参数资料
型号: MC68HC05RC8P
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, PDIP28
封装: PLASTIC, DIP-28
文件页数: 70/122页
文件大小: 445K
代理商: MC68HC05RC8P
Resets
Internal Resets
MC68HC05RC16 — Rev. 3.0
General Release Specification
MOTOROLA
Resets
51
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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