CM2915

LCD Driver (19*4) with Key Scan (4*8)

* All specs and applications shown above subject to change without prior notice.

1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU ,

TAOYUAN, TAIWAN

Email: server@ceramate.com.tw

Tel:886-3-3214525

Http: www.ceramate.com.tw

Fax:886-3-3521052

Page 9 of 19

Rev 1.0 Aug.1, 2003

B. Pulse Position Modulation

The transmission codes employ the PPM ( Pulse Position Modulation ) method to represent

their two logic states by

bit-0 ( 1.12 ms )

and

bit-1 ( 2.24 ms ) :