ASM330LXH datasheet(48/56 Pages) STMICROELECTRONICS

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ASM330LXH

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DocID027411 Rev 3

6.22

FIFO_CTRL (1Ah)

FIFO Control Register (r/w).

Table 68. FIFO_CTRL register

Table 67. CTRL10_C register description

Zen_G

Gyroscope’s yaw axis (Z) output enable. Default value: 1.

(0: Z-axis output disabled; 1: Z-axis output enabled)

Yen_G

Gyroscope’s roll axis (Y) output enable. Default value: 1.

(0: Y-axis output disabled; 1: Y-axis output enabled)

Xen_G

Gyroscope’s pitch axis (X) output enable. Default value: 1.

(0: X-axis output disabled; 1: X-axis output enabled)

DCRM_XL

Interrupt duration counter reset mode selection. Default value: 0.

(0: counter is reset; 1: duration counter is decremented by 1LSB)

LIR_XL

Latched interrupt. Default value: 0.

(0: interrupt request not latched; 1: interrupt request latched)

4D_XL

4D option enabled on Interrupt. Default value: 0.

(0: interrupt generator uses 6D for position recognition; 1: interrupt generator uses

4D for position recognition)

FMODE2

FMODE1

FMODE0

FTH4

FTH3

FTH2

FTH1

FTH0

Table 69. FIFO_CTRL register description

FMODE [2:0]

FIFO mode selection bits. Default value: 000.

For further details refer to Table 70.

FTH [4:0]

FIFO threshold level setting. Default value: 0 0000.

Table 70. FIFO mode selection

FMODE2

FMODE1

FMODE0

Mode

Bypass mode. FIFO turned off

FIFO mode. Stop collecting data when FIFO is full.

Stream mode. If the FIFO is full, the new sample overwrites

the older sample.

Stream mode until trigger is deasserted, then FIFO mode.

Bypass mode until trigger is deasserted, then Stream mode.

Dynamic Stream mode.

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