Reset Control Flow - Motorola ColdFire MCF5281 User Manual

1
LOSS OF CLOCK?
2
LOSS OF LOCK?
3
PIN OR WD TIMEOUT
OR SW RESET?
12
NEGATE RSTO
MOTOROLA
Y
N
Y
N
RSTI
Y
N
Figure 28-4. Reset Control Flow
Chapter 28. Reset Controller Module
5
ENABLE BUS MONITOR
6
BUS CYCLE
COMPLETE?
Y
7
ASSERT RSTO AND
LATCH RESET STATUS
8
RSTI NEGATED?
Y
9
Y
PLL MODE?
N
10
WAIT 512 CLKOUT CYCLES
11
RCON ASSERTED?
N
Functional Description
0
POR OR LVD
N
4
ASSERT RSTO AND
LATCH RESET STATUS
N
9A
PLL LOCKED?
11A
Y
LATCH CONFIGURATION
N
Y
28-9