mcf5307cft90b Freescale Semiconductor, Inc, mcf5307cft90b Datasheet - Page 424

• Manufacturer Part Number: mcf5307cft90b
• Description: Mcf5307 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

Reset Operation
During the software watchdog reset period, all signals that can be are driven to a
high-impedance state; all those that cannot be are negated. When RSTO negates, bus
signals remain in a high-impedance state until the MCF5307 is granted the bus and the
ColdFire core begins the first bus cycle for reset exception processing.
18-36
(1/2 MODE)
(1/3 MODE)
(1/4 MODE)
PSTCLK
BCLKO
BCLKO
BCLKO
CLKIN
RSTO
D[7:0]
RSTI
Figure 18-34. Software Watchdog Reset Timing
>80 CLKIN
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MCF5307 User’s Manual
D[7:0] latched
Cycle Lock Time
100K CLKIN
30 BCLKO
20 BCLKO
15 BCLKO