Specifications

Chapter 1 MicroTouch Touchscreen Controllers 17
Data Formats
Data format refers to the type of packet the controller uses to send the
X, Y touch coordinate to the host system.
As listed in Table 2, the default data format for your controller may be
Format Decimal or Format Tablet. However, MicroTouch
recommends that you use Format Tablet for the following reasons:
Format Tablet uses only 5 bytes per point and provides the most
rapid response time to a touch.
Format Tablet is the most efficient and most compact data format
(sends approximately 192 packets per second at 9600 baud).
Format Tablet includes a status byte. The status byte contains
information on whether the X, Y coordinate is generated from a
touchdown, a touch continuation (when the finger is resting on the
screen), or a touch liftoff.
Format Tablet is supported by all MicroTouch touchscreen
controllers.
Format Tablet is the standard for MicroTouch product
development and is the format used by all touchscreen drivers
written by MicroTouch.
There are several firmware commands that let you select a different
data format, such as Format Binary, Format Decimal, Format
Hexadecimal, and Format Zone. However, not all touchscreen
controllers support these data formats. For more information on other
data formats, refer to Chapter 2.