H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 565
H8S-2350
Manufacturer Part Number
H8S-2350
Description
16-Bit Single-Chip Microcomputer
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.H8S-2350.pdf
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12.1
The H8S/2350 Group has a single-channel on-chip watchdog timer (WDT) for monitoring system
operation. The WDT outputs an overflow signal (WDTOVF) if a system crash prevents the CPU
from writing to the timer counter, allowing it to overflow. At the same time, the WDT can also
generate an internal reset signal for the H8S/2350 Group.
When this watchdog function is not needed, the WDT can be used as an interval timer. In interval
timer operation, an interval timer interrupt is generated each time the counter overflows.
12.1.1
WDT features are listed below.
Switchable between watchdog timer mode and interval timer mode
WDTOVF output when in watchdog timer mode
If the counter overflows, the WDT outputs WDTOVF. It is possible to select whether or not
the entire H8S/2350 Group is reset at the same time. This internal reset can be a power-on
reset or a manual reset.
Interrupt generation when in interval timer mode
If the counter overflows, the WDT generates an interval timer interrupt.
Choice of eight counter clock sources.
Overview
Features
Section 12 Watchdog Timer (WDT)
Rev. 3.00 Sep 15, 2006 page 531 of 988
Section 12 Watchdog Timer (WDT)
REJ09B0330-0300
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