STMPE1208S datasheet(27/51 Pages) STMICROELECTRONICS

27 / 51 page

STMPE1208S

27/51

CTRL_1

Control register 1

Address:

0x24

Type:

R/W

Reset:

0x00

Description:

Control register.

7654

F2A

PDIV[1:0]

NDIV

HDC_U

HDC_C

HOLD_C

[7] RESERVED

[6] F2A:

Write '1' to force the device to stay in active mode at all times. For best performance and

stability, this bit must be set to ‘1’ at all times.

[5:4] PDIV[1:0]:

'00' : System clock = 1.6MHz

'01' : System clock = 800KHz

'10' : System clock = 400KHz

'11' : System clock = 200KHz

[3] NDIV:

Sensor clock frequency setting:

'0' :sensor clock = system clock / 80

'1' :sensor clock = system clock / 160

Initial calibration time = sensor clock * 150

[2] HDC_U:

Unconditional host driven calibration. Executes an unconditional calibration. This is valid only if

"Hold C" bit is set, and device in Active mode. Reads '0' when calibration is completed.

[1] HDC_C:

Conditional host driven calibration. Executes a calibration if no touch is being sensed.

[0] HOLD_C:

'0' for auto-calibration mode

'1' disables auto-calibration

STMPE1208S データシート(PDF) 27 Page - STMicroelectronics

STMPE1208S データシート(HTML) 27 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

データシートダウンロード