Datasheet

 2011 Microchip Technology Inc. DS41606B-page 15
AR1100 RESISTIVE USB AND RS-232 TOUCH SCREEN CONTROLLER
Up to three touch reports are sent in response to each
touch ‘event’ (events are defined as: pen down, pen up
and pen move). A behavior is defined per event by the
‘Touch mode’ configuration parameter and described in
Table 4-3 below.
TABLE 4-2: TOUCH REPORT FORMAT – GENERIC
BYTE
BIT
76543210
1 1 R RRRRRP
2 0 X6 X5 X4 X3 X2 X1 X0
3 0 0 0 X11 X10 X9 X8 X7
4 0 Y6 Y5 Y4 Y3 Y2 Y1 Y0
5 0 0 0 Y11 Y10 Y9 Y8 Y7
P Pen state - 1: Pen down - 0: Pen up
R(Reserved)
X X ordinate of touch location (12 bits)
Y Y ordinate of touch location (12 bits)
TABLE 4-3: TOUCH MODE OPTIONS – GENERIC
MODE
SUPPORTED EVENT
BEHAVIOR
PD PU PM
0 X X X NO REPORT
1 X X X REPORT (P=0)
2 X X X REPORT (P=1)
3 X X X REPORT (P=1), REPORT (P=0)
4 X X REPORT (P=0), REPORT (P=1), REPORT (P=0)
5 X X REPORT (P=0), REPORT (P=1)
PD Pen down
PU Pen up
PM Pen move
Report Touch report