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MB90F455 Datasheet(PDF) 39 Page - fujitsu semiconductor

Part # MB90F455
Description  16-bit Microcontroller
PDF  80 Pages
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Manufacturer  FUJITSU [fujitsu semiconductor]
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Logo FUJITSU - fujitsu semiconductor

MB90F455 Datasheet(HTML) 39 Page - fujitsu semiconductor

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MB90455 Series
DS07-13728-5E
39
• Watch timer block diagram
Actual interrupt request number of watch timer is as follows :
Interrupt request number : #28 (1CH)
• Watch timer counter
A 15-bit up counter that uses sub clock (SCLK) as a count clock.
• Counter clear circuit
A circuit that clears the Watch timer counter.
WTOF WTR
WTC1 WTC0
WTC2
WDCS SCE WTIE
25
24
23
21
29
210
211
212
213
214
215
28
27
26
22
SCLK
OF
OF
OF
OF
OF
OF
OF
OF
To watchdog
timer
Watch timer counter
Power-on reset
Shift to hardware standby
Shift to stop mode
To sub clock oscillation
stabilizing wait time
Interval timer
selector
Watch timer interrupt
OF
: Overflow
SCLK
: Sub clock
Watch timer control register (WTC)
Counter
clear
circuit



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