LSM330 datasheet(50/75 Pages) STMICROELECTRONICS

50 / 75 page

LSM330

50/75

DocID023426 Rev 3

Other configurations are not used.

8.24

FIFO_SRC_REG_A (2Fh)

Linear acceleration sensor FIFO source control register (r).

8.25

CTRL_REG2_A (21h)

State machine 1 control register (r/w).

Table 46. FIFO_CTRL_REG_A register description

FMODE [2:0]

FIFO mode selection. Default value: 000 (see Table 47)

WTMP [4:0]

FIFO threshold. Watermark level setting. FIFO depth if the watermark is enabled

Table 47. FIFO mode configuration

FMODE2

FMODE1

FMODE0

FIFO mode

Bypass mode

FIFO mode

Stream mode

Stream-to-FIFO mode

Bypass-to-Stream mode

Table 48. FIFO_SRC_REG_A register

WTM

OVRN_

FIFO

EMPTY

FSS4

FSS3

FSS2

FSS1

FSS0

Table 49. IFO_SRC_REG_A register description

WTM

Watermark status.

0 = FIFO filling is lower than WTM level; 1 = FIFO filling is equal or higher than

WTM level

OVRN_FIFO

Overrun bit status. 0 = FIFO is not completely filled; 1 = FIFO is completely filled

EMPTY

FIFO empty bit.

0 = FIFO not empty; 1 = FIFO empty)

FSS [4:0]

FIFO stored data level

Table 50. CTRL_REG2_A register

HYST2_1

HYST1_1

HYST0_1

SM1_PIN

SM1_EN

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