STEVAL-MKI024V1 STMicroelectronics, STEVAL-MKI024V1 Datasheet - Page 28

• Manufacturer Part Number: STEVAL-MKI024V1
• Description: DEMO BOARD BASED ON LIS331DL
• Manufacturer: STMicroelectronics
• Series: MEMSr

Specifications of STEVAL-MKI024V1

• Design Resources: STEVAL-MKI024V1 Gerber Files STEVAL-MKI024V1 Schematics STEVAL-MKI024V1 Bill of Materials
• Sensor Type: Accelerometer, 3 Axis
• Sensing Range: ±2.3g, 9.2g
• Interface: SPI, USB
• Sensitivity: 72mg/digit
• Voltage - Supply: 5V, USB
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: LIS331DL
• Acceleration: 2 g, 8 g
• Sensing Axis: Triple Axis
• Output Type: Digital
• Interface Type: USB
• Silicon Manufacturer: ST Micro
• Silicon Core Number: LIS331DL
• Kit Application Type: Sensing - Motion / Vibration / Shock
• Application Sub Type: Accelerometer
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8719

Register description
7.4
7.5
28/42
Table 21.
CTRL_REG3 [interrupt CTRL register] (22h)
Table 22.
Table 23.
Table 24.
HP_FILTER_RESET (23h)
Dummy register. Reading at this address zeroes instantaneously the content of the internal
high pass-filter. If the high pass filter is enabled all three axes are instantaneously set to 0 g.
This allows to overcome the settling time of the high pass filter.
IHL
PP_OD
I2_CFG2
I2_CFG1
I2_CFG0
I1_CFG2
I1_CFG1
I1_CFG0
IHL
I1(2)_CFG2
HPcoeff2,1
00
01
10
11
0
0
0
0
1
1
High pass filter cut-off frequency configuration
CTRL_REG3 register
CTRL_REG3 description
Data Signal on INT1(2) pad control bits
PP_OD
Interrupt active high, low. Default value 0.
(0: active high; 1: active low)
Push-pull/Open Drain selection on interrupt pad. Default value 0.
(0: push-pull; 1: open drain)
Data signal on INT2 pad control bits. Default value 000.
(see table below)
Data signal on INT1 pad control bits. Default value 000.
(see table below)
I1(2)_CFG1
I2_CFG2
0
0
1
1
0
1
(ODR=100 Hz)
ft (Hz)
I2_CFG1
0.25
0.5
2
1
I1(2)_CFG0
I2_CFG0
0
1
0
1
0
1
I1_CFG2
FF_WU_1 OR FF_WU_2
(ODR=400 Hz)
Click interrupt
INT 1(2) Pad
I1_CFG1
Data ready
FF_WU_1
FF_WU_2
ft (Hz)
GND
8
4
2
1
LIS331DL
I1_CFG0