FXLS8471Q datasheet(62/75 Pages) FREESCALE

62 / 75 page

FXLS8471Q

Sensors

Freescale Semiconductor, Inc.

10.11.2

PULSE_SRC (0x22) register

This register indicates the status bits for the pulse detection function.

10.11.3

PULSE_THSX (0x23) register

The PULSE_THSX, PULSE_THSY and PULSE_THSZ registers define the thresholds used by the system to start the pulse-

event detection procedure. Threshold values for each axis are unsigned 7-bit numbers with a fixed resolution of 0.063 g/LSB,

corresponding to an 8 g acceleration full-scale range. The full-scale range is fixed at 8 g for the pulse detection function,

regardless of the settings made in XYZ_DATA_CFG[fs].

Table 120. PULSE_SRC register

pls_src_ea

pls_src_axz

pls_src_axy

pls_src_axx

pls_src_dpe

pls_src_polz

pls_src_poly

pls_src_polx

Table 121. PULSE_SRC bit descriptions

Field

Description

pls_src_ea

Event active flag.

0: No interrupt has been generated

1: One or more interrupt events have been generated

pls_src_axz

Z-axis event flag.

0: No interrupt.

1: Z-axis event has occurred

pls_src_axy

Y-axis event flag.

0: No interrupt.

1: Y-axis event has occurred

pls_src_axx

X-axis event flag.

0: No interrupt.

1: X-axis event has occurred.

pls_src_dpe

Double pulse on first event.

0: Single-pulse event triggered interrupt.

1: Double-pulse event triggered interrupt.

pls_src_polz

Pulse polarity of Z-axis event.

0: Pulse event that triggered interrupt was positive.

1: Pulse event that triggered interrupt was negative.

pls_src_poly

Pulse polarity of Y-axis event.

0: Pulse event that triggered interrupt was positive.

1: Pulse event that triggered interrupt was negative.

pls_src_polx

Pulse polarity of X-axis event.

0: Pulse event that triggered interrupt was positive.

1: Pulse event that triggered interrupt was negative.

Table 122. PULSE_THSX register

—

pls_thsx[6:0]

7’b0000000

Table 123. PULSE_THSX bit description

Field

Description

pls_thsx[6:0]

Pulse threshold for X-axis.

FXLS8471Q датащи(PDF) 62 Page - Freescale Semiconductor, Inc

FXLS8471Q датащи(HTML) 62 Page - Freescale Semiconductor, Inc

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 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75

датащи скачать

ссылки URL