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FUJITSU MB91460 SERIES FR60 User Manual

Page 158

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142

Chapter 9 Reset

4.Registers

Indicates whether a software reset has been triggered by writing to the software reset bit (STCR.SRST).

The software reset occurred flag (SRST) is cleared to “0” after reading.

• Bit2: Low voltage reset occurred flag

Indicates whether a reset (INIT) was triggered by the low voltage detection.

The low voltage reset occurred flag (LINIT) is cleared to “0” after reading.

• Bit1-0: Watchdog period selection

The watchdog period selection bits (WT[1:0]) can set the period of the watchdog timer to the following:

(F x 2

20

to 2

21

, F x 2

22

to 2

23

, F x 2

24

to 2

25

, F x 2

26

to 2

27

)

See “

Chapter 20 Software Watchdog Timer (Page No.273)

” for details.

SRST

Meaning

0

No RST has been triggered by a software reset.

1

RST has been triggered by a software reset.

LINIT

Meaning

0

No INIT has been triggered by the low voltage detection.

1

INIT has been triggered by the low voltage detection.