MB90F455SPMT View Datasheet(PDF) - Fujitsu

Part Name

Description

Manufacturer

MB90F455SPMT

16-bit Proprietary Microcontroller

Fujitsu 

MB90455 Series

• 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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