E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 599
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E62655RUSB
Manufacturer Part Number
E62655RUSB
Description
EMULATOR BASE H8S/2655R W/USB
Manufacturer
Renesas Electronics America
Type
Microcontrollerr
Datasheet
1.E62655RUSB.pdf
(1093 pages)
Specifications of E62655RUSB
Contents
E6000 Emulator Unit and 4 Logic Probes
For Use With/related Products
H8S/2655R
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 599 of 1093
- Download datasheet (6Mb)
13.1
The H8S/2655 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/2655 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.
13.1.1
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/2655 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 13 Watchdog Timer
Rev. 5.00 Sep 14, 2006 page 569 of 1060
Section 13 Watchdog Timer
REJ09B0331-0500
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