MXT1664T3-ABESSQTP datasheet(47/98 Pages) MICROCHIP

47 / 98 page

MXT1664T3 2.0

 2018 Microchip Technology Inc.

DS40002054A-page 47

• Byte 0:

The HID-I2C report ID (see Table 9-2 on page 40 for Touch reports).

•Byte 1:

Status is the status of the touch detection. This bit is set to 1 if touch is detected, and set to 0, if no touches are

detected.

•Byte 2:

Touch ID identifies the touch for which this is a status report (starting from 0).

• Bytes 3 to 10:

X and Y positions identify the touch position. These are scaled to 12-bit resolution. This means that the upper four

bits of the MSByte will always be zero. Bytes 5, 6, 9 and 10 are reserved when TCHGEOMEN field is set to 0.

•Byte 11:

Touch Width reports the width of the detected touch when TCHGEOMEN is set to 1.

Reserved when TCHGEOMEN is set to 0

• Byte 13:

Touch Height reports the height of the detected touch when TCHGEOMEN is set to 1.

Reserved when TCHGEOMEN is set to 0

• Byte 15 to 16:

Scan Time is the timestamp associated with the current report packet (10 kHz resolution).

• Byte 17:

Count is the number of active touches to be sent in one package, for the first touch only. Subsequent packets for

subsequent active touches have a Count of 0.

Touch Width

Reserved

Touch Height

Reserved

Scan Time LSByte

Scan Time MSByte

Packet Count

TABLE 9-4:

TOUCH REPORT FORMAT WHEN TCHGEOMEN = 0

Byte

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

0HID-I2C Touch Report ID

Reserved

Status

Touch ID

Touch X Position LSByte (first touch)

Reserved

Touch X Position MSBits (first touch)

Reserved

Touch Y Position LSByte (first touch)

Reserved

Touch Y Position MSBits (first touch)

Reserved

Scan Time LSByte

Scan Time MSByte

Packet Count

TABLE 9-3:

TOUCH REPORT FORMAT WHEN TCHGEOMEN = 1 (CONTINUED)

Byte

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

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