SCA3100 DEMO KIT VTI Technologies, SCA3100 DEMO KIT Datasheet - Page 28

• Manufacturer Part Number: SCA3100 DEMO KIT
• Description: KIT DEMO ACCELEROMETER SCA3100
• Manufacturer: VTI Technologies

Specifications of SCA3100 DEMO KIT

• Sensor Type: Accelerometer, 3 Axis
• Sensing Range: ±2g
• Interface: SPI
• Sensitivity: 900 counts/g
• Voltage - Supply: 3 V ~ 3.6 V
• Embedded: No
• Utilized Ic / Part: SCA3100 Series
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 551-1056

4.2.2
VTI Technologies Oy
www.vti.fi
Examples of I
Examples of I
Figure 10. I
S
S
S
S
S
RS = Repeated start condition
E
SA = Slave Acknowledgement
MA = Master Acknowledgement
AA = Device address, 10 bits
CASE 4: I2C 16 bit read (any number of bytes can be read, length is determined by end condition generated by master).
Automatic register address changing depends on selected start address in I2C_RD_SEL (noted by addr and addr_x on the figure).
CASE 1: I2C 8 bit write
CASE 2: I2C 16 bit write (any number of bytes can be written, length is determined by end condition generated by master)
CASE 3: I2C 8 bit read, read address for SCA3000 series register should be written to I2C_RD_SEL register
device addr 1st byte
11110AA
device addr 1st byte
11110AA
device addr 1st byte
11110AA
= Start condition
= End condition
device addr 1st byte
11110AA
2
C communication
2
C frame format.
2
C communication are presented below in Figure 10.
0 SA
0 SA
0 SA
0 SA
Read/write select bit
(0=write, 1=read)
device addr 2nd byte
device addr 2nd byte
AAAAAAAA
device addr 2nd byte
AAAAAAAA
device addr 2nd byte
AAAAAAAA
AAAAAAAA
Doc.Nr. 8257300A.07
SA
SA
SA
SA
RS
RS
register addr
8 bits, MSB first
register addr
8 bits, MSB first
device addr 1st byte
11110AA
device addr 1st byte
11110AA
SA
SA
1 SA
1 SA
register data
8 bits, MSB first
register data, addr + 0
8 bits, MSB first
register data, addr
8 bits, MSB first
register data, addr
8 bits, MSB first
SA
SA
E
register data, addr - 1
8 bits, MSB first
MA
MA
E
register data, addr_x
8 bits, MSB first
SCA3000 Series
SA
E
MA
Rev.A.07
E
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