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MB90F455 Datasheet(PDF) 34 Page - fujitsu semiconductor

Part # MB90F455
Description  16-bit Proprietary Microcontroller
PDF  78 Pages
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Manufacturer  FUJITSU [fujitsu semiconductor]
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Logo FUJITSU - fujitsu semiconductor

MB90F455 Datasheet(HTML) 34 Page - fujitsu semiconductor

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MB90455 Series
34
•••• Detailed pin assignment on block diagram
The 16-bit input/output timer includes a 16-bit free-run timer. Interrupt request number of the 16-bit free-run
timer is as follows:
Interrupt request number: 19 (13H)
•••• Prescaler
The prescaler divides a machine clock and provides a counter clock to the 16-bit up counter. Dividing ratio of
the machine clock is specified by timer counter control status register (TCCS) among four values.
•••• Timer counter data register (TCDT)
The timer counter data register is a 16-bit up counter. A current counter value of the 16-bit free-run timer is read.
Writing a value during halt of the counter allows setting an arbitrary counter value.



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