AR1000_16 Datasheet, PDF (29/61 Pages) Microchip Technology – AR1000 Series Resistive Touch Screen Controller

AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER
8.2.13
PenStateReportDelay Register
(OFFSET 0x0F)
The PenStateReportDelay register sets the delay time
between sending of sequential touch reports for the
“Pen-Down” and “Pen-Up” Touch mode states. See
Section 8.2.10 “TouchMode Register (offset 0x0C)”
for touch modes.
For example, if “Pen-Up” state of the TouchMode
register is configured to send a touch report with P=1,
followed by a touch report with P=0, then this delay
occurs between the two touch reports. This provides
some timing flexibility between the two touch reports
that may be desired in certain applications. Valid values
are as follows.
0 ≤ PenStateReportDelay ≤ 255
Pen State Report Delay Time = PenStateReportDelay *
50 μs
8.2.14
TouchReportDelay Register (OFFSET
0x11)
The TouchReportDelay register sets a forced delay
time between successive touch report packets. This
allows slowing down of the touch report rate, if desir-
able for a given application. For example, a given appli-
cation may not need a high rate of touch reports and
may want to reduce the overhead used to service all of
the touch reports being sent. In this situation, increas-
ing the value of this register will reduce the rate at
which the controller sends touch reports. Valid values
are as follows:
0 ≤ TouchReportDelay ≤ 255
Touch Report Delay Time ≈ TouchReportDelay * 500 μs
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DS40001393C-page 29