NSE-5310 Datasheet, PDF (13/21 Pages) ams AG – Miniature Position Encoder SOIC with Zero Reference and I²C Output

NSE-5310
Data Sheet - Application Information
Figure 10. I²C Additional Information – Magnitude and Temperature Sensor
Mag
SDA Incr
Decr
AGC7AGC6AGC5AGC4AGC3AGC2AGC1AGC0 Mag7 Mag6Mag5 Mag4Mag3Mag2Mag1Mag0
TD9 TD8 TD7 TD6 TD5 TD4 TD3 TD2
SCL
Data Byte 2
91
ACK
Master
Data Byte 3
91
ACK
Master
Data Byte 4
91
ACK
Master
Data Byte 5
9
ACK P
Master
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.
Figure 11. Sync Mode
Data _ PhaseA
DTEST 1 _ A
DTEST 2 _ B
Data_PhaseB
96 µs
Data_PhaseA
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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