SCP1000 PCB3 VTI Technologies, SCP1000 PCB3 Datasheet - Page 27

• Manufacturer Part Number: SCP1000 PCB3
• Description: SENSOR I2C 30-120KPA PCB
• Manufacturer: VTI Technologies
• Series: SCP1000r

Specifications of SCP1000 PCB3

• Pressure Type: Absolute
• Operating Pressure: 4.35 ~ 17.40 PSI, 30 ~ 120 kPa
• Output: Digital
• Voltage - Supply: 2.4 V ~ 3.3 V
• Termination Style: Surface Mount
• Operating Temperature: -20°C ~ 70°C
• Package / Case: PCB Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 551-1044

4.2.1.2
4.2.1.3
VTI Technologies Oy
www.vti.fi
9.
8 bit TWI read sequence
16 bit TWI read sequence
8 bit TWI read sequence is presented in Figure 14 and described below:
16 bit TWI read sequence is presented in Figure 15 and described below:
Figure 14. TWI frame format for 8 bit read operation (numbers from 9 to 19 refer to list
10.
9. START BIT (to initiate a transmission, the master sends a start bit)
10. SLAVE DEVICE ADDRESS (slave device address with WRITE access → LSB = ‘0’)
11. SLAVE ACKNOWLEDGEMENT (having identified device address as its own, slave
12. REGISTER ADDRESS (the 8 bit address of the register to be read, MSB first)
13. SLAVE ACKNOWLEDGEMENT (the slave sends an acknowledgement bit)
14. REPEATED START (from master)
15. SLAVE DEVICE ADDRESS (slave device address with READ access → LSB = ‘1’)
16. SLAVE ACKNOWLEDGEMENT (the slave acknowledges)
17. REGISTER DATA (the master continues sending the SCK pulses as slave sends the
18. MASTER NOT ACKNOWLEDGE (master terminates the data transfer by sending not
19. STOP BIT (master sets the bus free)
20. START BIT (to initiate a transmission, the master sends a start bit)
21. SLAVE DEVICE ADDRESS (slave device address with WRITE access → LSB = ‘0’)
22. SLAVE ACKNOWLEDGEMENT (having identified device address as its own, slave
23. REGISTER ADDRESS (the 8 bit address of the register to be read, MSB first)
24. SLAVE ACKNOWLEDGEMENT (the slave sends an acknowledgement bit)
25. REPEATED START (from master)
26. SLAVE DEVICE ADDRESS (slave device address with READ access → LSB = ‘1’)
27. SLAVE ACKNOWLEDGEMENT (the slave acknowledges)
28. MSB BYTE OF REGISTER DATA (the master continues sending the SCK pulses as slave
29. MASTER ACKNOWLEDGEMENT (the master acknowledges after it has received the first
30. LSB BYTE OF REGISTER DATA (the master continues sending the SCK pulses as slave
31. MASTER NOT ACKNOWLEDGE (master terminates the data transfer by sending not
32. STOP BIT (master sets the bus free)
acknowledges by sending an acknowledge bit)
defined register content to SDA line)
acknowledge bit)
acknowledges by sending an acknowledge bit)
sends the defined register MSB content to SDA line)
8 bit byte of register content)
sends the defined register LSB content to SDA line)
acknowledge bit)
11.
12.
Doc.Nr. 8260800.08
Subject to changes
13.
14.
15.
16.
17.
SCP1000 Series
Rev.0.08
18.
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19.