參數(shù)資料
型號(hào): MC68HC05P4A
廠商: Motorola, Inc.
英文描述: 28-pin MCU (microcontroller unit) based on the MC68HC05P4(28引腳、基于MC68HC05P4升級(jí)的8位微控制器單元)
中文描述: 28引腳單片機(jī)(微控制器)的基礎(chǔ)上MC68HC05P4(28引腳,基于MC68HC05P4升級(jí)的8位微控制器單元)
文件頁數(shù): 44/102頁
文件大?。?/td> 930K
代理商: MC68HC05P4A
Advance Information
MC68HC05P4A — Rev. 6.0
44
Resets
MOTOROLA
Resets
5.4 RESET Pin
The MCU is reset when a logic 0 is applied to the RESET input for a
period of one and one-half machine cycles (t
cyc
).
5.5 Computer Operating Properly (COP) Reset
The MCU contains a watchdog timer that automatically times out if not
reset (cleared) within a specific time by a program reset sequence. If the
COP watchdog timer is allowed to time out, an internal reset is
generated to reset the MCU. Because the internal RESET signal is
used, the MCU comes out of a COP reset in the same operating mode
it was in when the COP timeout was generated.
The COP reset function is enabled or disabled by a mask option.
Refer to
Section 9. Computer Operating Properly (COP)
for more
information on the COP.
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