
S1C88409 TECHNICAL MANUAL
EPSON
v
CONTENTS
CHAPTER
10 PAD LAYOUT ____________________________________________ 220
10.1 Diagram of Pad Layout ............................................................................... 220
10.2 Pad Coordinates .......................................................................................... 221
APPENDIX
CONTROLLING THE TOUCH PANEL CONTROLLER __________________ 222
A.1
I/O Map ....................................................................................................... 222
A.2
Description .................................................................................................. 227
A.2.1 Circuit connection .................................................................................... 227
A.2.2 Mask option configuration ....................................................................... 227
A.2.3 Reducing power consumption and improving response ......................... 227
A.2.4 Reading coordinate data from the TPC ................................................... 227
A.2.5 Calculating the LCD dot position ........................................................... 228
A.3
Precautions ................................................................................................. 228
A.3.1 Interrupt processing ................................................................................. 228
A.3.2 Others ....................................................................................................... 228
A.4
Reference Flowchart ................................................................................... 229
A.4.1 Initializing the TPC .................................................................................. 229
A.4.2 TPC data update interrupt processing .................................................... 229
A.4.3 TP initial data configuration ................................................................... 230
A.4.4 Coordinate data calculation .................................................................... 231
A.5
Reference Program ..................................................................................... 232
A.5.1 Setting constants and macros (include file) ............................................ 232
A.5.2 TPC initialization ..................................................................................... 232
A.5.3 TPC data update interrupt processing .................................................... 233
A.5.4 TP initial data setting .............................................................................. 234
A.5.5 Coordinate data calculation .................................................................... 236