7

* This specification are subject to be changed without notice.

EM32117

16DIGITLCDDRIVERWITHCHECKTIMEFUNCTION

3.17.1999

Preliminary

Setting Calendar and Real-Time clock

When the system is in State 1(ON-HOOK idle state), the calendar and Real-Time Clock can be set up by

operating MS1 and MS2 pins as described in the following:

1. When the system is in State 1, press MS1 and hold for over 2 sec , month digits will flash,

2. Press MS2 to increment month digits.

3. Press MS1 once again, day digits will flash,

4. Press MS2 to increment day digits.

5. Press MS1 again, hour digits will flash.

6. Press MS2 to count up data.

7. Press MS1 once again, minute digits and flash,

8. Press MS2 to count up minute digits.

9. Press MS1 again to finish RTC set up, and the second digit will be reset.

Note:

1. If MS2 are pressed and hold for over 2 seconds, then data automatically count up in every 0.5 sec.

2. Digit flash time is 1 Hz (0.5 sec on, 0.5 sec off)

The flow chart of RTC mode is as follows: