13-08-2012, 01:27 PM
INTERFACING WITH 8051
LCD Interface PMK.pdf (Size: 178.87 KB / Downloads: 62)
LCD FORMATS
Accepts characters -- ASCII format.
Character display font -- matrix of dots
7x5 matrix (7 rows and 5 columns of dots)
10x5 matrix (10 rows and 5 columns of dots).
16x2 LCD module data RAM address
First line from 00H to 14H
Second line starts from 29H to 3CH.
LCD INITIALIZATION
Choosing character font
Selecting No. of Lines, Matrix format
Initializing cursor for blinking
Auto increment etc.
Seven Segment Display Interface
Four digit 7 segment display
Driven by 4 cascaded serial-inparallel-
out shift registers .
P0.0-Data- transmitted serially bit
by bit.
P2.0-Clock NEEDS 32 CLK to
display completely.
Common anode.