LIS302DL_08 STMICROELECTRONICS [STMicroelectronics], LIS302DL_08 Datasheet - Page 26

• Manufacturer Part Number: LIS302DL_08
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Register description
7
7.1
7.2
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Register description
The device contains a set of registers which are used to control its behavior and to retrieve
acceleration data. The registers address, made of 7 bits, is used to identify them and to
write the data through serial interface.
WHO_AM_I (0Fh)
Table 17.
Device identification register. This register contains the device identifier that for LIS302DL is
set to 3Bh.
CTRL_REG1 (20h)
Table 18.
Table 19.
DR bit allows to select the data rate at which acceleration samples are produced. The
default value is 0 which corresponds to a data-rate of 100Hz. By changing the content of DR
to “1” the selected data-rate will be set equal to 400Hz.
PD bit allows to turn on the turn the device out of power-down mode. The device is in power-
down mode when PD= “0” (default value after boot). The device is in normal mode when PD
is set to 1.
STP, STM bit is used to activate the self test function. When the bit is set to one, an output
change will occur to the device outputs (refer to
allowing to check the functionality of the whole measurement chain.
DR
PD
FS
STP, STM
Zen
Yen
Xen
DR
0
WHO_AM_I (0Fh) register
CTRL_REG1 (20h) register
CTRL_REG1 (20h) register description
Data rate selection. Default value: 0
(0: 100 Hz output data rate; 1: 400 Hz output data rate)
Power Down Control. Default value: 0
(0: power down mode; 1: active mode)
Full Scale selection. Default value: 0
(refer to
Self Test Enable. Default value: 0
(0: normal mode; 1: self test P, M enabled)
Z axis enable. Default value: 1
(0: Z axis disabled; 1: Z axis enabled)
Y axis enable. Default value: 1
(0: Y axis disabled; 1: Y axis enabled)
X axis enable. Default value: 1
(0: X axis disabled; 1: X axis enabled)
PD
0
Table 3
FS
1
for typical full scale value)
STP
1
Table 3
STM
1
and
4
Zen
0
for specification) thus
Yen
1
LIS302DL
Xen
1