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FM8P73B

Web site: http://www.feeling-tech.com.tw

Rev1.0 Nov 20, 2013

P.21/FM8P73B

FEELING

TECHNOLOGY

2.1.17

WDTCON (Watchdog Timer Control Register)

Address

Name

21h (r/w)

WDTCON

I_WDT

I_TWDT

EXCLK

WDTPS2 WDTPS1 WDTPS0

Legend: - = unimplemented, read as ‘0’.

The FM8P73B builds in a watchdog timer with two different modes, normal watchdog reset and internal watchdog

wakeup. The watchdog timer is controlled by this register (WDTCON). Please refer to 2.5 for detail Watchdog

Timer description.

I_WDT : Internal Watchdog Wakeup mode selection.

= 1, Internal Watchdog Wakeup Enable.

= 0, Internal Watchdog Wakeup Disable.

I_TWDT : Watchdog Timer Stable time required when operating in I_WDT mode.

= 1, 1.25ms.

= 0, 2.5ms (default).

EXCLK : IOB2/TMCKI function selection

= 1, IOB2 is external clock input of timer.

= 0, IOB2 is normal I/O.

WDTPS2:WDTPS0 : Watchdog timer prescaler setting

WDTPS2 : WDTPS0

WDT prescaler rate

1:1

1:2

1:4

1:8

1:16

1:32

1:64

1:128

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