lsm330dlc STMicroelectronics, lsm330dlc Datasheet - Page 23

• Manufacturer Part Number: lsm330dlc
• Description: Inemo Inertial Module 3d Accelerometer And 3d Gyroscope
• Manufacturer: STMicroelectronics

LSM330DLC
4.2.5
4.2.6
4.3
Stream-to-FIFO mode
In Stream-to-FIFO mode, data from X, Y and Z measurement is stored in the FIFO. A
watermark interrupt can be enabled (FIFO_WTMK_EN bit in the
register) in order to be raised when the FIFO is filled to the level specified in the
FIFO_WTMK_LEVEL bits of the
until it is full (32 slots of 8 -bit data for X, Y and Z). When full, the FIFO discards the older
data as the data new arrives. Once trigger event occurs, the FIFO starts operating in FIFO
mode.
Retrieve data from FIFO
FIFO data is read through
OUT_Y_H_A (2Bh)
Stream, Trigger or FIFO mode, a read operation to the
(29h),
registers provides the data stored in the FIFO. Each time data is read from the FIFO, the
oldest X, Y and Z data are placed in the
OUT_Y_L_A (2Ah), OUT_Y_H_A (2Bh)
registers and both single read and read_burst operations can be used.
Gyroscope digital main blocks
Figure 5.
ADC
OUT_Y_L_A (2Ah), OUT_Y_H_A (2Bh)
LPF1
Gyroscope block diagram
and
OUT_Z_L _A (2Ch), OUT_Z_H_A
HPF
OUT_X_L_A (28h), OUT_X_H_A
Doc ID 022162 Rev 1
FIFO_CTRL_REG_A
HPen
0
1
and
OUT_X_L_A (28h), OUT_X_H_A
LPF2
OUT_Z_L _A (2Ch), OUT_Z_H_A (2Dh)
or
OUT_Z_L _A (2Ch), OUT_Z_H_A (2Dh)
Out_Sel
INT_Sel
register. The FIFO continues filling
10
OUT_X_L_A (28h), OUT_X_H_A
00
01
11
10
01
11
00
(2Dh). When the FIFO is in
(29h),
DataReg
32x16x3
generator
Interrupt
FIFO_CTRL_REG_A
FIFO
OUT_Y_L_A (2Ah),
SCR REG
(29h),
CONF REG
Functionality
INT1
AM07230v1
I
SPI
2
C
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