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The watch dog timer, built-in the gate array (IC1), is initialized about every 1.5 ms. / When a
watch dog error occurs, pin 18 of the gate array (IC1) becomes low. / The terminal of the
signal is connected to the reset line so the
5.3.6. SRAM and RTC BACK UP CIRCUIT
1. Function
This unit has a lithium battery (BAT1) which works for the RAM
(IC3) and Real Time Clock (RTC, Integrated into ASIC:IC1). / The
user parameter for auto dial numbers, the transmission ID, the
signal works as the reset signal.
128
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