BMP585 datasheet(25/71 Pages) BOSCH

25 / 71 page

Bosch Sensortec

| BST-BMP585-DS003-02

25 | 71

Document number: BST-BMP585-DS003-02

as well as in the event of applications for industrial property rights

Table 13: FIFO pressure frame (P-frame)

Table 14: FIFO empty frame

4.6.4 FIFO configuration changes

The FIFO is flushed on any of the following conditions:



a change in the sensor configuration:

o OSR_CONFIG.osr_t

o OSR_CONFIG.osr_p

o ODR_CONFIG.odr

o ODR_CONFIG.pwr_mode



a change in the frame configuration:

o FIFO_SEL.fifo_frame_sel

o FIFO_SEL.cfg_fifo_dec_sel

The flush will empty the FIFO, reset the FIFO_COUNT register, and clear the interrupt conditions.

The completion of the FIFO flush is finished within treconf, or treconf_deep if the device is in deep sleep. The FIFO_COUNT

should not be read before the flush has been finished, as the result may be inconsistent.

If the register FIFO_CONFIG_fifo_threshold is written, the resulting interrupt status bits will be immediately updated

according to the new threshold.

The register FIFO_SEL must only be changed in STANDBY mode.

4.7 Interrupts

The BMP585 provides an interrupt pin (INT), which allows to signal certain events to the host processor. Different events

can be mapped to the interrupt pin, which all are processed with a logical OR.

BMP585 also supports I3C‘s in-band interrupt (IBI). This allows the use of interrupt functionality without the need of a

dedicated INT signal line. For documentation of the I3C IBI functionality, see section 5.7.2 "I3C In-band Interrupts".

The available interrupts are listed below, and will be detailed in following subsections:



FIFO watermark interrupt



FIFO full interrupt



Data ready interrupt



Pressure out-of-range interrupt



Power-on reset (POR) interrupt

4.7.1 Interrupt enabling

The individual interrupts sources can be enabled in the INT_SOURCE register. An exception is the POR interrupt, which

is always enabled. With enabled interrupt sources:



their individual status is available from the INT_STATUS register,



I3C in-band interrupts can be used (see section 5.7.2 "I3C In-band Interrupts"), and

the interrupt pin can be used, see section 4.7.3.

Pressure

pressure XLSB

press LSB

press MSB

Empty

0x7F

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