MB91106PFV View Datasheet(PDF) - Fujitsu

Part Name

Description

Manufacturer

MB91106PFV

32-bit RISC Microcontroller

Fujitsu 

MB91106 Series

12. Pin Condition at Turning on the Power Supply

The pin condition at turning on the power supply is unstable. The circuit starts being initialized after turning on

the power supply and then starting oscillation and then the operation of the internal regulator becomes stable.

So it takes about 42 ms for the pin to be initialized from the oscillation starting at the source oscillation 12.5

MHz. Take care that the pin condition may be output condition at initial unstable condition.

13. Source Oscillation Input at Turning on the Power Supply

At turning on the power supply, never fail to input the clock before cancellation of the oscillation stabilizing

waiting.

14. Initialization

Some internal resistors initialized only via power on reset are embedded in the device. To initialize these

resistors, run power on reset by returning on the power supply or to set RST pin to “H” level.

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