SIR,

I WANT TO CONNECT 4X3 KEYBOARD TO 8051 WITH THE
THE FOLLOWING INFO.

KEYPAD OF TELEPHONE. LIKE . 1 2 3
4 5 6
7 8 9
* 0 #

I LIKE TO CONNECT ALL THREE COLOM TO THREE PIN
OF A PORT AND FOUR RAWS TO OTHER PINS OF PORT.

SIR I NEED *.ASM FILE AS PER ABOVE.
I LIKE TO RUN COIN OPERARTED PHONE BY USING 8051.

IF YOU OR ANY FRIEND HELP ME PLEASE MAIL ME.
EMAIL: chhatralia@spu.ernet.in

REGARDS

THANKING YOU.

CHHATRALIA M.D.
INDIA.