Motorola MCF5281 用户手册

MOTOROLA

Chapter 28.  Reset Controller Module  

28-5

7

—

Reserved, should be cleared.

6

LVD

Low voltage detect. Indicates that the last reset state was caused by an LVD reset.
1  Last reset state was caused by an LVD reset
0 Last reset state was not caused by an LVD reset

5

SOFT

Software reset flag. Indicates that the last reset was caused by software.
1 Last reset caused by software
0 Last reset not caused by software

4

WDR

Watchdog timer reset flag. Indicates that the last reset was caused by a watchdog timer timeout.
1 Last reset caused by watchdog timer timeout
0 Last reset not caused by watchdog timer timeout

3

POR

Power-on reset flag. Indicates that the last reset was caused by a power-on reset.
1 Last reset caused by power-on reset
0 Last reset not caused by power-on reset

2

EXT

External reset flag. Indicates that the last reset was caused by an external device asserting the 
external RSTI pin.
1 Last reset state caused by external reset
0 Last reset not caused by external reset

1

LOC

Loss-of-clock reset flag. Indicates that the last reset state was caused by a PLL loss of clock.
1 Last reset caused by loss of clock
0 Last reset not caused by loss of clock

0

LOL

Loss-of-lock reset flag. Indicates that the last reset state was caused by a PLL loss of lock.
1 Last reset caused by a loss of lock
0 Last reset not caused by loss of lock