D6F-PH MEMS Differential pressure Sensor User’s Manual (A288)
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3. Reading the Upper and Lower byte of Compensated Flow Data Registers(D051h & D052h)
The first data after the initialization process is not the flow rate data. Disable this data.
I2C command: To read Compensated flow data register, it needs to set 2Ch (it
means 2byte read) to interface configuration register (address:2h).
START
Slave Address
ACK Access Address ACK Reg Address H ACK Reg Address L ACK
S
D8h (6Ch (7b)+ 0)
A
00h
A
D0h
A
51h
A
I2C command: Through Read Buffer 0(address:07h) and Read Buffer 1(address:08h),
you can read the 2byte of Compensated flow data.
Serial Ctrl
ACK STOP
2Ch
A
P
START
Slave Address
ACK Access Address ACK
S
D8h (6Ch (7b)+ 0)
A
07h
A
Re-Start
Slave Address
ACK
Read Data H
ACK
Read Data L
ACK STOP
RS
D9h (6Ch (7b)+ 1)
A
xxh
A
xxh
NA
P
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