Specifications

Chapter 2 Firmware Commands 37
MSB* Bits LSB*
Data Sequence 76543210
S - Byte 1 1 S6 S5 S4 S3 S2 S1 S0
X - Byte 2 0 X3 X2 X1 X0 Reserved
x - Byte 3 0 Xs** X9 X8 X7 X6 X5 X4
Y - Byte 4 0 Y3 Y2 Y1 Y0 Reserved
y - Byte 5 0 Ys** Y9 Y8 Y7 Y6 Y5 Y4
*
MSB = Most Significant Bit, LSB = Least Significant Bit
**
s = sign bit
Table 8 describes the meaning of the bits in the status byte (Byte 1).
Table 8. Calibrate Raw Status Bits
Bit Description Values
S0
S1
Switch 1 status
Switch 2 status
For the TouchPen only.
1 = Switch is on (pressed).
0 = Switch is off.
S2 – S4 Reserved —
S5 Pen or Finger For the TouchPen only.
1 = Screen touched with a pen.
0 = Screen touched with a finger.
S6 Proximity
(touch state)
1 = Touchscreen is being touched (a
touchdown or a continued touch).
0 = Touchscreen is not being touched (a
touch liftoff or inactive).
When the proximity bit changes from 1 to
0 (touch liftoff), the controller outputs
one final set of X, Y coordinate data with
the bit equal to 0 and the X, Y coordinate
data equal to the last touch point.
S7 Packet
synchronization
Always 1.