MS5607-02BA03 Datasheet, PDF (12/20 Pages) TE Connectivity Ltd – Barometric Pressure Sensor, with stainless steel cap

MS5607-02BA03
Barometric Pressure Sensor, with stainless steel cap
SCLK
CSB
SDI
SDO
PS
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
READING 16BIT PROM VALUE MSB FIRST
Figure 9: PROM Read sequence, address = 011 (Coefficient 3).
I²C INTERFACE
COMMANDS
Each I²C communication message starts with the start condition and it is ended with the stop condition. The
MS5607-02BA address is 111011Cx, where C is the complementary value of the pin CSB. Since the IC does not
have a microcontroller inside, the commands for I²C and SPI are quite similar.
RESET SEQUENCE
The reset can be sent at any time. In the event that there is not a successful power on reset this may be caused by
the SDA being blocked by the module in the acknowledge state. The only way to get the MS5607-02BA to function
is to send several SCLKs followed by a reset sequence or to repeat power on reset.
1 1 1 0 1 1 CSB 0 0 0 0 0 1 1 1 1 0 0
Device Address
command
S Device Address W A
cmd byte
AP
From Master
From Slave
S = Start Condition
P = Stop Condition
W = Write
R = Read
A = Acknowledge
N = Not Acknowledge
Figure 10: I²C Reset Command
PROM READ SEQUENCE
The PROM Read command consists of two parts. First command sets up the system into PROM read mode. The
second part gets the data from the system.
1 1 1 0 1 1 CSB 0 0 1 0 1 0 0 1 1 0 0
Device Address
command
S Device Address W A
cmd byte
AP
From Master
From Slave
S = Start Condition
P = Stop Condition
W = Write
R = Read
A = Acknowledge
N = Not Acknowledge
Figure 11: I²C Command to read memory address= 011 (Coefficient 3)
1 1 1 0 1 1 CSB 1 0 X X X X X X X X 0 X X X X X X X X 0
Device Address
data
data
S Device Address R A Memory bit 15 - 8 A Memory bit 7 - 0 N P
From Master
From Slave
S = Start Condition
P = Stop Condition
W = Write
R = Read
A = Acknowledge
N = Not Acknowledage
Figure 12: I²C answer from MS5607-02BA
SENSOR SOLUTIONS ///MS5607-02BA03
09/2015
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