Preliminary
S3C2451X RISC MICROPROCESSOR
WATCHDOG TIMER
12-1
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
12
WATCHDOG TIMER
OVERVIEW
The S3C2451X watchdog timer is used to resume the controller operation whenever it is disturbed by
malfunctions such as noise and system errors. The watchdog timer generates the reset signal. It can be used as a
normal 16-bit interval timer to request interrupt service.
Advantage in using WDT instead of PWM timer is that WDT generates the reset signal.
FEATURES
The Watchdog Timer includes the following features:
−
Normal interval timer mode with interrupt request
−
Internal reset signal is activated for 128 PCLK cycles when the timer count value reaches 0 (time-out).