FXLS90130 datasheet(86/247 Pages) NXP

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NXP Semiconductors

FXLS9xxx0

Single channel inertial sensor

OC_LIMIT[2:0]

Post PSI5 self-test offset limits

0x6

± 12 LSB, 10-bit

0x7

± 14 LSB, 10-bit

Table 152. Offset cancellation test limit bits (OC_LIMIT[2:0])...continued

11.2.27.3 DSP disable bit (DSP_DIS)

The DSP disable bit provides the option for the user to disable the clocking to the DSP if

sensor data from the associated channel is not used.

DSP_DIS

DSP status

DSP operational as specified

DSP clocking disabled. Sensor data is readable but will not be updated by the DSP

even when self-test is enabled

Table 153. DSP disable bit (DSP_DIS)

Care must be taken to ensure the DSP is not disabled for sources that are enabled.

11.2.28 Channel 0 arming configuration register (CH0_ARM_CFG)

The arming configuration register contains configuration information for the arming

function. The values in this register are only relevant if the arming function is operating in

moving average mode, or count mode.

Note: The arming function is reset on a change to the CHx_ARM_CFG bits. This

includes the downsampling state and all history registers.

This register can be written during initialization but is locked once the ENDINIT bit is set.

Refer to Section 11.2.6. The register is included in the read/write array error detection.

Location

Bit

Address

$45

CH0_ARM_CFG

ARM_DS[1:0]

ARM_PS[1:0]

ARM_WS_N[1:0]

ARM_WS_P[1:0]

Unprogrammed OTP Value

Table 154. Channel 0 arming configuration register (CH0_ARM_CFG)

11.2.28.1 Arming function down sampling selection bits (ARM_DS[1:0])

The arming function down sampling selection bits select the down sample rate for the

arming function. See Section 11.9.4.

ARM_

DS[1]

ARM_

DS[0]

Down sampling

Provide every Sensor Data Request sample to the arming function.

Provide every other Sensor Data Request sample to the arming function.

Provide every fourth Sensor Data Request sample to the arming function.

Provide every eighth Sensor Data Request sample to the arming function.

Table 155. Arming function down sampling selection bits (ARM_DS[1:0])

FXLS9xxx0

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Product data sheet

Rev. 6 — 8 February 2021

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