Toshiba H1 Series - Manual (Page 570)

TMP92CZ26A
92CZ26A-567
Figure 3.20.4 Timing diagram of de-bounce circuit
INT4
Reset the counter for de-bounce time
P96/INT4 pin
Start the counter for de-bounce time
de-bounce time de-bounce time
INT4 is generated by matching counter and
specified de-bounce time.
After pen is de-touched, INT4 can be issued
again.
de-bounce time
INT4 isn’t generated by matching counter and specified
de-bounce time because of it is an edge-type interrupt.