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HC705RC16GRS/D Datasheet(PDF) 48 Page - NXP Semiconductors

Part # HC705RC16GRS/D
Description  The MC68HC705RC16 is a low-cost addition to the M68HC05 Family of microcontrollers (MCUs) and is suitable for remote control applications.
PDF  120 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

HC705RC16GRS/D Datasheet(HTML) 48 Page - NXP Semiconductors

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Resets
General Release Specification
MC68HC705RC16 — Rev. 3.0
Resets
5.5.2.4 COP Watchdog Timer Considerations
The COP watchdog timer is active in all modes of operation if enabled
by a mask option. If the COP watchdog timer is selected by a mask
option, any execution of the STOP instruction (either intentionally or
inadvertently due to the CPU being disturbed) causes the oscillator to
halt and prevents the COP watchdog timer from timing out. If the COP
watchdog timer is selected by a mask option, the COP resets the MCU
when it times out. Therefore, it is recommended that the COP watchdog
be disabled for a system that must have intentional uses of the wait
mode for periods longer than the COP time-out period.
The recommended interactions and considerations for the COP
watchdog timer, STOP instruction, and WAIT instruction are
summarized in Table 5-1.
Table 5-1. COP Watchdog Timer Recommendations
IF the Following Conditions Exist:
THEN the COP Watchdog
Timer Should Be:
Wait Time
Wait Time Less than COP Time-Out
Enable or Disable COP by MOR
Wait Time More than COP Time-Out
Disable COP by MOR
Any Length Wait Time
Disable COP by MOR
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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