PT6522 Datasheet, PDF (5/13 Pages) Princeton Technology Corp – LCD Display Driver

FUNCTION DESCRIPTION
DATA TRANSFER FORMAT
1. Static (1/1) duty
PT6522
2. 1/2 duty (if there are no more that 52 display segments, only 64 bits need to be transferred. The transfer format is the
same as the static duty case. It is not possible to alter the D54 to D106 data without specifying the D1 to D53 data.)
Address: A2_H
DP: Drive type selection bit
DP=0: 1/1 duty
DP=1: 1/2 duty
D1 to D106: Display data
Dn (for n=1 to 106)=0: Segment off
Dn (for n=1 to 106)=1: Segment on
x: don't care
DATA TRANSFER EXAMPLES
1. Static duty
2. 1/2 duty with 52 or fewer segments
3. 1/2 duty with more than 52 segments
Note: the following transfer format is not allowed in 1/2 duty with 52 or fewer segments.
V1.6
5
August 2010