mc68hc908mr24 Freescale Semiconductor, Inc, mc68hc908mr24 Datasheet - Page 337

• Manufacturer Part Number: mc68hc908mr24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Advance Information — MC68HC908MR24
16.1 Contents
16.2 Introduction
MC68HC908MR24 — Rev. 4.1
Freescale Semiconductor
Section 16. Computer Operating Properly (COP)
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
This section describes the computer operating properly module, 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .341
Wait Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .338
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
COP Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .341
Computer Operating Properly (COP)
CGMXCLK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .339
COPCTL Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .339
Power-On Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
Internal Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Reset Vector Fetch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
COPD (COP Disable). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Advance Information
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