Advantech PCA-684 User Manual

PCA-6184, ed. 1 User’s Manual 84
Table A.1: Watchdog Timer Registers
Address of register (2E) Attribute
Read/Write Value (2F) and
description
87 (hex) ----- Write this address to I/O
address port 2E (hex)
twice to unlock
theW83627HF
07 (hex) write Write 08 (hex) to select
register of watchdog
timer.
30 (hex) write Write 01 (hex) to enable
the function of the watch-
dog timer. Disabled is set
as default.
F5 (hex) write Set seconds or minutes
as units for the timer.
Write 0 to bit 3: set second
as counting unit. [default]
Write 1 to bit 3: set minute
as counting unit
F6 (hex) write 0: stop timer [default]
01~FF (hex): The
amount of the count, in
seconds or minutes,
depends on the value set
in register F5 (hex). This
number decides how
long the watchdog timer
waits for strobe before
generating an interrupt or
reset signal. Writing a
new value to this regis-
ter can reset the timer to
count with the new value.

Advantech PCA-684 Specifications

General

Brand	Advantech
Model	PCA-684
Category	PCI Card
Language	English