M2256PW 3M, M2256PW Datasheet - Page 28

• Manufacturer Part Number: M2256PW
• Description: LCD Touch Panels 22 M2256PW 20 Point Multi-Touch
• Manufacturer: 3M
• Series: -r
• Type: Capacitiver

Specifications of M2256PW

• Length: 18.6" (473.8mm)
• Width: 20.2" (513.2mm)
• Height: 11.6" (296.1mm)
• Interface: USB/Serial
• Diagonal Screen Size: 22" (559mm)
• Lead Free Status / Rohs Status: Details

28
Table 16. Touch Report Structure
Offset
51
61
62
63
Offset
0
1
2
3
4
5
6
7
8
9
Field
Touch Report
Actual Count
Not used
Not used
Field
Status
Touch ID
X lsb
X msb
Y lsb
Y msb
Width lsb
Width msb
Height lsb
Height msb
3M Touch Systems, Inc. Proprietary Information
Size
10
1
1
1
Size
6
1
1
1
1
1
1
1
1
1
See table 16
Value
1 to 60
0
0
Value
0xXX
0-255
0xXX
0xXX
0xXX
0xXX
0xXX
0xXX
0xXX
0xXX
Description
Touch Report Structure
Number of valid touch reports
3M™ Display M2256PW User Guide
Description
0x04 Not touching
0x07 Touching
Touch thread ID number
X ( 0-7FFF)
Y ( 0-7FFF)
0x00 Report not valid
Width ( 0-7FFF)
Height ( 0-7FFF)