Toshiba TLCS-900/H1 Series Manual page 431

3.19.5 Flow Chart for TSI
(1) Touch detection procedure
Main routine:
Execute main routine
TSICR0 ← 98H
TSICR1 ← XXH (Voluntary)
Figure 3.19.6 Flow Chart for TSI
92CH21-429
(2) X/Y position measurement procedure
INT4 routine:
<X position measurement>
･TSICR0 ← 85H
･AD conversion for AN3
･Store the result
<Y position measurement>
･TSICR0 ← 8AH
･AD conversion for AN2
･Store the result
Execute an operation
by using X/Y position
Yes
Still touched ?
TSICR0<PTST> = 1?
No
Return to main routine
TMP92CH21
2009-06-19