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NSE-5310
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
Figure 10. I2C Additional Information – Magnitude and Temperature Sensor
SDA
Mag
Incr
Decr
AGC7 AGC6AGC5AGC4AGC3AGC2AGC1AGC0
Mag7 Mag6Mag5 Mag4Mag3Mag2Mag1Mag0
TD9 TD8 TD7 TD6 TD5 TD4 TD3 TD2
SCL
9
1
9
1
9
1
9
Data Byte 2
ACK
Master
Data Byte 3
ACK
Master
Data Byte 4
ACK
Master
Data Byte 5
ACK
Master
P
AGC7- AGC0: Automatic Gain Control data
Mag7- Mag0: MSB magnitude value
TD9 - TD2: MSB temperature data
The information is sequenced by the order of priority during operation. Hence temperature readout is not needed for every access and
magnitude information is only important if the AGC is out of range. The I2C readout can be stopped after every byte with the stop condition P.
Timing constraints are according to I2C-Bus Specification V2.1 / 2000.
8.4.1
Sync Mode
This mode is used to synchronize the external electronics with the NSE-5310. In this mode two signals are provided at the pins DTEST_A and
DTEST_B.
To activate sync mode, the internal trim bit for Sync Mode must be set. Please refer to Application Note AN5310-10.
Figure 11. Sync Mode
Data _ PhaseA
Data_PhaseB
Data_PhaseA
DTEST 1 _ A
DTEST 2 _ B
96 μs
Every rising edge at DTEST1_A indicates that new data in the device is available. With this signal it is possible to trigger a μC (interrupt) and
start the serial interface readout.
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