mcf5282 Freescale Semiconductor, Inc, mcf5282 Datasheet - Page 609

• Manufacturer Part Number: mcf5282
• Manufacturer: Freescale Semiconductor, Inc

Chapter 29
Reset Controller Module
The reset controller is provided to determine the cause of reset, assert the appropriate reset signals to the
system, and then to keep a history of what caused the reset. The Low Voltage Detection module, which
generates low-voltage detect (LVD) interrupts and resets, is implemented within the reset controller
module.
29.1
Module features include:
29.2
Figure 29-1
Freescale Semiconductor
•
•
•
•
Seven sources of reset:
— External
— Power-on reset (POR)
— Watchdog timer
— Phase locked-loop (PLL) loss of lock
— PLL loss of clock
— Software
— LVD reset
Software-assertable RSTO pin independent of chip reset state
Software-readable status flags indicating the cause of the last reset
LVD control and status bits for setup and use of LVD reset or interrupt
Features
Block Diagram
illustrates the reset controller and is explained in the following sections.
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
29-1