參數(shù)資料
型號(hào)： MC68HC05BD7P
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP40
封裝： DIP-40
文件頁數(shù)： 37/85頁
文件大小： 302K
代理商： MC68HC05BD7P
MOTOROLA
SECTION 6: OPERATING MODES
Page 32
GENERAL RELEASE SPECIFICATION
MC68HC05BD7 Rev. 2.0
PRELIMINARY
6.7
COP Watchdog Timer Considerations
The COP Watchdog Timer is always enable in MC68HC05BD7. It will reset the MCU when
it times out. For a system that must have intentional uses of the WAIT Mode, care must be
taken to prevent such situations from happening during normal operations by arranging
timely interrupts to reset the COP Watchdog timer.
Figure 6-2: WAIT Flowcharts
Y
N
Y
1.Fetch Reset Vector
or
2.Service Interrupt
a.Stack
b.Set I-Bit
c.Vector to Interrupt Routine
Internal
COP
RESET?
External Oscillator Active,
and Internal
Timer Clock Active
Restart
Internal Processor Clock
Stop Internal Processor Clock,
Clear I-Bit in CCR
External
H/W
Interrupt?
External
RESET?
WAIT
N
Internal
Interrupt?
相關(guān)PDF資料
PDF描述
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參數(shù)描述
MC68HC05C0CP 制造商:Motorola Inc 功能描述:
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MC68HC05C12B 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNITS
MC68HC05C12CP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNITS
MC68HC05C12P 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNITS
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