STEVAL-MKI030V1 STMicroelectronics, STEVAL-MKI030V1 Datasheet - Page 22

• Manufacturer Part Number: STEVAL-MKI030V1
• Description: BOARD DEMO STM8S207R6/LIS331DLH
• Manufacturer: STMicroelectronics
• Series: MEMSr

Specifications of STEVAL-MKI030V1

• Design Resources: STEVAL-MKI030V1 Schematic
• Sensor Type: Accelerometer, 3 Axis
• Sensing Range: ±2g, 4g, 8g
• Interface: I²C, SCI
• Sensitivity: 3.9mg/digit, 2mg/digit, 1mg/digit
• Voltage - Supply: 4.5V
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: LIS331DLH, STM8S207R6T6
• Sensing Axis: Triple Axis
• Operating Voltage: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8852

Digital interfaces
5.2.3
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Figure 10. Multiple bytes SPI write protocol (2 bytes example)
SPI read in 3-wires mode
3-wires mode is entered by setting to ‘1’ bit SIM (SPI serial interface mode selection) in
CTRL_REG4.
Figure 11. SPI read protocol in 3-wires mode
The SPI read command is performed with 16 clock pulses:
bit 0: READ bit. The value is 1.
bit 1: MS bit. When 0 do not increment address, when 1 increment address in multiple
reading.
bit 2-7: address AD(5:0). This is the address field of the indexed register.
bit 8-15: data DO(7:0) (read mode). This is the data that is read from the device (MSb first).
Multiple read command is also available in 3-wires mode.
SPC
SDI
CS
SDI/O
SPC
CS
RW
MS
AD5 AD4 AD3 AD2 AD1 AD0
RW
MS
AD5 AD4 AD3 AD2 AD1 AD0
Doc ID 15094 Rev 3
DI7 DI6 DI5 DI4 DI3 DI2 DI1 DI0 DI15 DI14 DI13 DI12 DI11 DI10 DI9 DI8
DO7 DO6 DO5 DO4 DO3 DO2 DO1 DO0
LIS331DLH