Freescale Semiconductor FRDM-FXS-MULTI-B Ficha De Dados
Table 30. CTRL_REG0
Bit
7
6
5
4
3
2
1
0
Read
0
0
SPIW
SEL[1:0]
HPF_EN
FS[1:0]
Write
Reset
0
0
0
0
0
0
0
0
Table 31. CTRL_REG0 field descriptions
Field
Description
5
SPIW
SPI interface mode selection
• The contents should only be modified when the device is in Standby mode
0: SPI 4-wire mode (default)
1: SPI 3-wire mode (MOSI is used for IN/OUT signals)
4:3
SEL
High-pass filter cutoff frequency selection
2
HPF_EN
High-pass filter enable
• The high-pass filter is initialized on mode change, ODR change, and assertion of the ZR_COND
bit.
• When enabled, the HPF is applied to the angular rate data supplied to the output registers/FIFO
and the embedded rate threshold algorithm.
0: High-pass filter disabled (default)
1: High-pass filter enabled
1:0
FS
Full-scale range selection
• See
Table 32. High-pass filter cutoff frequency selection
SEL1
SEL0
Cutoff Frequency in Hz versus ODR
200 Hz
100 Hz
50 Hz
25 Hz
12.5 Hz
6.25 Hz
3.15 Hz
1.5625 Hz
0
0
3.75
1.875
0.937
0.468
0234
0.12
0.06
0.03
0
1
1.925
0.963
0.481
0.241
0.120
0.06
0.03
0.015
1
0
0.975
0.488
0.244
0.122
0.061
0.03
0.015
0.008
1
1
0.495
0.248
0.124
0.062
0.031
0.015
0.008
0.004
Table 33. Selectable Full Scale Ranges
FS1
FS0
Range (dps)
Nominal Sensitivity (dps/LSB)
0
0
±1600
0.2
0
1
±800
0.1
Table continues on the next page...
Register Descriptions
Xtrinsic 3-Axis Digital Angular Rate Gyroscope, Rev1.2, 7/2014.
33
Freescale Semiconductor, Inc.