EM32117 Ver la hoja de datos (PDF) - ELAN Microelectronics

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EM32117

16 DIGIT LCD DRIVER WITH CHECK TIME FUNCTION

ELAN Microelectronics 

EM32117

16 DIGIT LCD DRIVER WITH CHECK TIME FUNCTION

Preliminary

Stop-Watch reset and RTC display in Stop-watch Mode

The system will enter Stop-watch mode with stop watch automatically reset when the system first switches

from State 1 to other States in the Stop-watch mode.

In addition, the stop-watch can be reset any time, e.g. when the called party answers, by pressing MS2 switch.

For example:

• 21 seconds after the system enters Stop-watch mode, the display becomes 00-21.

• When the other party answers, press MS2 key to reset the stop-watch. Then the stop-watch can reflect the

real phone conversation time.

• When the system is in Stop-watch mode, the EM32117 can be switched to RTC display by pressing MS1.

Dialing Number Display

When the system is in Stop-watch mode, each dialing digit data received from SDI pin of EM32117 will be

decoded and appears at the right most digit on LCD panel and shifts left as each subsequent digit received until

it is shifted out the panel at the left end. If no valid serial data is received for more than 6 seconds, the system

will revert to stop watch display until a new digit are received from SDI pin. Display format is as follows:

• After HKS pin goes low, the EM32117 will enter Stop-watch Mode, after 2 sec blanking state.

• When "035" are received from SDI pin, the EM32117 will switch to dialing number display.

• After "787" are received, the LCD panel is as shown below:

* This specification are subject to be changed without notice.

3.17.1999 10

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