I3G4250D Datasheet, PDF (36/43 Pages) STMicroelectronics – 3-axis digital output gyroscope

Register description
7.10
OUT_X_L (28h), OUT_X_H (29h)
X-axis angular rate data. The value is expressed as 2’s complement.
7.11
OUT_Y_L (2Ah), OUT_Y_H (2Bh)
Y-axis angular rate data. The value is expressed as 2’s complement.
7.12
OUT_Z_L (2Ch), OUT_Z_H (2Dh)
Z-axis angular rate data. The value is expressed as 2’s complement.
I3G4250D
7.13
FIFO_CTRL_REG (2Eh)
Table 43. FIFO_CTRL_REG register
FM2
FM1
FM0
WTM4 WTM3 WTM2 WTM1
FM2-FM0
WTM4-WTM0
Table 44. FIFO_CTRL_REG register description
FIFO mode selection. Default value: 000
FIFO threshold. Watermark level setting
WTM0
FM2
0
0
0
FM1
0
0
1
Table 45. FIFO mode configuration
FM0
FIFO mode
0
Bypass mode
1
FIFO mode
0
Stream mode
7.14
FIFO_SRC_REG (2Fh)
WTM OVRN
Table 46. FIFO_SRC register
EMPTY
FSS4
FSS3
FSS2
FSS1
FSS0
WTM
OVRN
EMPTY
FSS4-FSS1
Table 47. FIFO_SRC register description
Watermark status. (0: FIFO filling is lower than WTM level; 1: FIFO filling is equal
to or higher than WTM level)
Overrun bit status.
(0: FIFO is not completely filled; 1: FIFO is completely filled)
FIFO empty bit.
(0: FIFO not empty; 1: FIFO empty)
FIFO stored data level
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