lsm330dlc STMicroelectronics, lsm330dlc Datasheet - Page 33

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

LSM330DLC
6
6.1
Digital interfaces
The registers embedded in the LSM330DLC may be accessed through both the I
serial interfaces. The latter may be SW configured to operate either in 3-wire or 4-wire
interface mode.
To select/exploit the I
Table 10.
I
The LSM330DLC I
whose content can also be read back.
The relevant I
Table 11.
There are two signals associated with the I
Serial DAta line (SDA). The latter is a bidirectional line used for sending and receiving the
data to/from the interface.
2
C serial interface
Transmitter
Pin name
SDA_A/G
SCL_A/G
Receiver
SDO_G
SDO_A
Master
CS_A
CS_G
Term
Slave
Serial interface pin description
Serial interface pin description
2
C terminology is provided in the table below.
2
C is a bus slave. The I
Linear acceleration SPI enable
Linear acceleration I
Angular rate SPI enable
Angular rate I
I
SPI serial port clock (SPC)
I
SPI serial data input (SDI)
3-wire interface serial data output (SDO)
I
SPI serial data output (SDO)
The device which sends data to the bus
The device which receives data from the bus
The device which initiates a transfer, generates clock signals and terminates a
transfer
The device addressed by the master
2
2
2
2
C serial clock (SCL)
C serial data (SDA)
C least significant bit of the device address (SA0)
C interface, the CS line must be tied high (i.e. connected to Vdd_IO).
Doc ID 022162 Rev 1
2
C/SPI mode selection (1: I
2
C/SPI mode selection (1: I
2
C is employed to write the data to the registers,
2
C bus: the Serial Clock Line (SCL) and the
Pin description
Description
2
C mode; 0: SPI enabled)
2
C mode; 0: SPI enabled)
Digital interfaces
2
C and SPI
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