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AS5134 Datasheet(PDF) 19 Page - ams AG |
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AS5134 Datasheet(HTML) 19 Page - ams AG |
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19 / 33 page  www.austriamicrosystems.com/AS5134 Revision 2.3 18 - 32 AS5134 Datasheet - Detailed Descr i pti on 7.11 Serial Synchronous Interface (SSI) Normal mode is used for normal operations, whereas extended mode is for accessing the OTP. SM_RES: State machine reset of the digital part of the device (soft reset). EN PROG: Enables the access to the OTP register in Extended Mode. WRITE CONFIG: LP HI activates the sleep mode of the AS5134. The power consumption is significantly reduced. LP LO returns to normal operation mode. During sleep mode, the lock_adc bit in command 0 is LO. RD_MT Counter: Command for read out of multi turn register. OTP_OK: Bit shows correct readout of the OTP register after startup. The bit is valid till the next OTP access. RD_ANGLE: Command for read out of angle value and AGC value (agc). “Lock” indicates a locked ADC. tst: Test bits for internal testing (must be left unchanged). Hyst (11:10): Digital Hysteresis can be set via the digital interface 0, 1, 2 (default), 3 LSB The hysteresis can be changed over the interface. An activation of the SM_RES bit is required. This can be performed in two steps - 1. Use WRITE CONFIG 1 command and write the selected hysteresis and SM_RES = ‘1’ into the device. 2. Use again WRITE CONFIG 1 command and release SM_RES = ‘0’ with the same hysteresis setting. SET MT COUNTER: Command for setting the Multi Turn Counter to a defined value. LP: Default "0"; "1" for using the low power function. lock_adc: Indicates that the tracking adc is in a locked status. For a valid angle (the magnetic field has to be in a certain range, which is indicated by the agc value) or a missing magnet the lock_adc is set. Table 9. Commands of the SSI in Normal Mode Digital interface at normal mode # cmd bin mode 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 23 WRITE CONFIG 1 10111 write LP SM_ RES tst tst Hyst <1:0> tst tst tst 20 SET MT COUNTER 10100 write multi-turn-counter <8:0> 16 EN PROG 10000 write 1 0 0 01 10 01 01 01 11 0 4 RD MT COUNTER 00100 read multi-turn-counter <8:0> OTP _OK 0 RD_ANGLE 00000 read lock_ adc agc <5:0> angle <8:0> Hyst Function 0 0 2 LSB (default value) 01 1 10 3 11 0 |
Similar Part No. - AS5134_04 |
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Similar Description - AS5134_04 |
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