mc68hc708mp16 Freescale Semiconductor, Inc, mc68hc708mp16 Datasheet - Page 333
mc68hc708mp16
Manufacturer Part Number
mc68hc708mp16
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC708MP16.pdf
(398 pages)
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Technical Data — MC68HC708MP16
16.1 Contents
16.2 Introduction
MC68HC708MP16
Freescale Semiconductor
Section 16. Computer Operating Properly (COP)
—
Rev. 3.1
16.2
16.3
16.4
16.4.1
16.4.2
16.4.3
16.4.4
16.4.5
16.4.6
16.5
16.6
16.7
16.8
16.9
This section describes the computer operating properly module (COP,
Version B), 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 periodically clearing the COP counter.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .337
Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .334
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
COP Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .337
COP Module During Break Mode . . . . . . . . . . . . . . . . . . . . . . 337
Computer Operating Properly (COP)
CGMXCLK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
COPCTL Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Power-On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Internal Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Reset Vector Fetch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336
COPD (COP Disable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Technical Data
333
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