IIS2DLPCTR datasheet(57/69 Pages) STMICROELECTRONICS

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IIS2DLPC

8.19

FIFO_SAMPLES (2Fh)

FIFO_SAMPLES control register (r).

Table 59. FIFO_SAMPLES register

Table 60. FIFO_SAMPLES register description

8.20

TAP_THS_X (30h)

4D configuration enable and TAP threshold configuration (r/w).

Table 61. TAP_THS_X register

Table 62. TAP_THS_X register description

Table 63. 4D/6D threshold setting FS @ ±2 g

FIFO_

FTH

FIFO_

OVR

Diff5

Diff4

Diff3

Diff2

Diff1

Diff0

FIFO_FTH

FIFO threshold status flag.

(0: FIFO filling is lower than threshold level;

1: FIFO filling is equal to or higher than the threshold level.)

FIFO_OVR

FIFO overrun status.

(0: FIFO is not completely filled;

1: FIFO is completely filled and at least one sample has been overwritten)

Diff[5:0]

Represents the number of unread samples stored in FIFO.

(000000 = FIFO empty; 100000 = FIFO full, 32 unread samples).

4D_EN

6D_THS1

6D_THS0

TAP_

THSX_4

TAP_

THSX_3

TAP_

THSX_2

TAP_

THSX_1

TAP_

THSX_0

4D_EN

4D detection portrait/landscape position enable.

(0: no position detected;

1: portrait/landscape detection and face-up/face-down position enabled).

6D_THS[1:0]

Thresholds for 4D/6D function @ FS = ±2 g (refer to Table 63)

TAP_THSX_[4:0]

Threshold for TAP recognition @ FS = ±2 g on X direction

6D_THS[1:0]

Threshold decoding (degrees)

6 (80 degrees)

11 (70 degrees)

16 (60 degrees)

21 (50 degrees)

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