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MC68HC908GR16A Datasheet(PDF) 79 Page - Freescale Semiconductor, Inc

No. de Pieza. MC68HC908GR16A
Descripción  M68HC08 Microcontrollers
Descarga  270 Pages
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Fabricante  FREESCALE [Freescale Semiconductor, Inc]
Página de inicio  http://www.freescale.com
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MC68HC908GR16A Datasheet(HTML) 79 Page - Freescale Semiconductor, Inc

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MC68HC908GR16A Data Sheet, Rev. 1.0
Freescale Semiconductor
79
Chapter 6
Computer Operating Properly (COP) Module
6.1 Introduction
The computer operating properly (COP) module contains a free-running counter that generates a reset if
allowed to overflow. The COP module helps software recover from runaway code. Prevent a COP reset
by clearing the COP counter periodically. The COP module can be disabled through the COPD bit in the
CONFIG register.
6.2 Functional Description
Figure 6-1 shows the structure of the COP module.
Figure 6-1. COP Block Diagram
COPCTL WRITE
BUSCLKX4
RESET VECTOR FETCH
SIM RESET CIRCUIT
RESET STATUS REGISTER
INTERNAL RESET SOURCES(1)
SIM MODULE
12-BIT SIM COUNTER
COPD (FROM CONFIG1)
RESET
COPCTL WRITE
CLEAR
COP MODULE
COPEN (FROM SIM)
1. See Chapter 15 System Integration Module (SIM) for more details.
COP CLOCK
COP RATE SELECT
(COPRS FROM CONFIG1)
6-BIT COP COUNTER
COP COUNTER


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Número de Pieza relacionado

Part NumberComponents DescriptionHtml ViewManufacturer
MC68HC08AS32AMicrocontrollers 1 2 3 4 5 MoreMotorola, Inc

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