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NI Digital System Development Board User Manual
This register describes LSB of the X coordinate of the nth touch point.(Read only)
This register describes MSB of the Y coordinate of the nth touch point and corresponding touch
ID.(Read only)
This register describes LSB of the Y coordinate of the nth touch point.(Read only)
Table 20.
X MSB Register
Address
Bit
Address
Register Name
Description
03h ~ 1Bh
7:6
Event Flag
00b: Press Down
01b: Lift Up
10b: Contact
11b: No event
5:4
Reserved
3:0
Touch X Position
[11:8]
MSB of Touch X Position in pixels
Table 21.
X LSB Register
Address
Bit
Address
Register Name
Description
04h ~ 1Ch
7:0
Touch X Position
[7:0]
LSB of the Touch X Position in pixels
Table 22.
Y MSB Register
Address
Bit
Address
Register Name
Description
05h ~ 1Dh
7:4
Touch ID[3:0]
Touch ID of Touch Point (0-4 is valid)
3:0
Touch Y Position
[11:8]
MSB of Touch Y Position in pixels
Table 23.
Y LSB Register
Address
Bit
Address
Register Name
Description
06h ~ 1Eh
7:0
Touch Y Position
[7:0]
LSB of the Touch Y Position in pixels