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38 | ni.com | 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

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

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

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

06h ~ 1Eh 7:0 Touch Y Position

[7:0]

LSB of the Touch Y Position in pixels

National Instruments ZYNQ XC7Z020-1CLG484C User Manual

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