CRTOUCH Datasheet, PDF (32/68 Pages) Freescale Semiconductor, Inc – Capacitive and Resistive Touch Sensing Application Specific IC.

Memory Map and Registers Description
Table 11. Calibration Values registers map
Name
X Calibration Value 1
MSB
X Calibration Value 1
LSB
X Calibration Value 2
MSB
X Calibration Value 2
LSB
Register
Address
0x4F
0x50
0x51
0x52
Incremental
Address
0x50
0x51
0x52
0x53
Default
Value
0x4000
0x0
Valid Range
0x0000 –
0xFFFF
0x0000 –
0xFFFF
Comment
X Calibration Value 3
MSB
X Calibration Value 3
LSB
0x53
0x54
0x54
0x55
0x0
0x0000 –
0xFFFF
Y Calibration Value 1 0x55
MSB
Y Calibration Value 1 0x56
LSB
Y Calibration Value 2 0x57
MSB
Y Calibration Value 2 0x58
LSB
Y Calibration Value 3 0x59
MSB
Y Calibration Value 3 0x5A
LSB
X Calibration Constant 0xB
MSB
X Calibration Constant 0x5C
LSB
Y Calibration Constant 0x5D
MSB
Y Calibration Constant 0x5E
LSB
0x56
0x57
0x58
0x59
0x5A
0x5B
0x5C
0x5D
0x50E
0x60
0x0
0x4000
0x0000 –
0xFFFF
0x0000 –
0xFFFF
Manual calibration values.
Writing to these registers
calibrates the device without
the need for pressing the
calibration points on the
touchscreen.
0x0
0x0000 –
0xFFFF
0x0
0x0000 –
0xFFFF
0x0
0x0000 –
0xFFFF
CRTouch Data Sheet, Rev. 3
32
Freescale Semiconductor