MC68HC705JD FREESCALE [Freescale Semiconductor, Inc], MC68HC705JD Datasheet - Page 46

• Manufacturer Part Number: MC68HC705JD
• Description: member of the low-cost
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

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7.3 COP Timer
7-4
COPR — COP Register
RESET
Three counter stages at the end of the timer make up the computer operating
properly (COP) timer. (See
detection system that automatically times out and resets the MCU if not cleared
periodically by a program sequence. Writing a zero to bit 0 of the COP register
clears the COP timer and prevents a COP timer reset. (See
COPC — COP Clear
This write-only bit resets the COP timer. Reading address $0FF0 returns the
EPROM data at that address.
Bit 7
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Freescale Semiconductor, Inc.
For More Information On This Product,
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Figure 7-4. COP Register (COPR)
Go to: www.freescale.com
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Figure 7-1
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TIMER
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.) The COP timer is a software error
MC68HC05J1 Emulation Mode: $07F0
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Figure
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7-4.)
COPC
Bit 0
0
$0FF0
Rev. 2