Samsung SR-L628EV Dokumentacja Pobierz pdf (Strona 20)

It is designed for clock generation and time

calculation for synchronizing transmission and

reception on the logic elements inside the MICOM.

If the X-TAL specification changes, MICOM may

make an error.

(The standard components should be used.)

Port

Xin(#19)

Xout(#20)

Oscillating Frequency

4.00MHz

±0.5% Error

When power is supplied to MICOM, reset circuit

initializes RAM and other parts on MICOM to

initialize all programs. Reset voltage maintains “low”

for hundreds of µsec comparing to MICOM Vcc

voltage when power is input. It also maintains

“high”(5V) during normal operation. But, when Vcc

drops to 3.4V-3.7V, reset port becomes “low”.

Port

Vcc

Reset

Voltage

6-2. Oscillator

6-3. Reset Circuit

6-4. Door S/W Detector

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Samsung SR-L628EV Dokumentacja Strona 20