USER MANUAL
STM 550 / EMSI
–
ENOCEAN MULTISENSOR FOR IOT APPLICATIONS
© 2020 EnOcean | www.enocean.com F-710-017, V1.0
STM 550 / EMSI User Manual | v1.3 | September 2020 | Page 64/97
9.5.16
ACC_SENSOR_CFG
The operation parameters of the acceleration sensor in STM 550 can be configured using
the ACC_SENSOR_CFG registers shown in Figure 43 below. Refer to chapter 3.5 for a de-
scription of the acceleration sensor function.
ACC_SENSOR_CFG (Default: 0x14)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RFU
WAKE
SAMPLING RATE
FULL SCALE
Figure 43
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ACC_SENSOR_CFG register
The encoding used by the FULL SCALE bit field is shown in Table 23 below.
FULL SCALE
Full scale value of the acceleration sensor
0b00 (Default)
+-2 g
0b01
+-4 g
0b10
+- 8g
0b11
+- 16g
Table 26
–
FULL SCALE bit field encoding
The encoding used by the SAMPLING RATE bit field is shown in Table 27 below.
SAMPLING RATE Sampling rate of the acceleration sensor
0b00
1.6 Hz
0b01 (Default)
12.5 Hz
0b10
25 Hz
0b11
50 Hz
Table 27
–
SAMPLING RATE bit field encoding
The wake-on-acceleration function can be enabled and disabled using the WAKE bit field as
shown in Table 28 below.
WAKE
Wake-on-acceleration
0b0
Disabled
0b1 (Default)
Enabled
Table 28
–
WAKE bit field encoding