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AS5134 Datasheet(PDF) 15 Page - ams AG |
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AS5134 Datasheet(HTML) 15 Page - ams AG |
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15 / 29 page  www.austriamicrosystems.com Revision 1.6 15 - 29 AS5134 Data Sheet - D e ta i l e d D e s c r i p t i o n Serial Synchronous Interface (SSI) Notes: 1. Empty fields should be described with “logical 0”. 2. The lock_adc signal indicates that the tracking adc is in a locked status – remark, that for valid angle condi- tions the magnetic field has to be in a certain range which is indicated by the agc_counter value. 3. These bits will be deleted during power down or sleep mode to ensure that the user is able to detect that the read out angle value is computed after the wake up sequence. EN PROG: Enables the access to the OTP register. WRITE CONFIG: go2sleep HI activates the sleep mode of the AS5134. The power consumption is significantly reduced. go2sleep LO returns to normal operation mode. During sleep mode, the lock bit in command 0 and command 1 is LO. RD_MT Counter: Command for read out of multi turn register (multiturn) and AGC value (agc). “Lock” indicates a locked ADC, and “parity” refers to an even parity checksum. RD_ANGLE: Command for read out of angle value and AGC value (agc). “Lock” indicates a locked ADC, and “parity” refers to an even parity checksum. WRITE OTP: Writing of the OTP register. The written data is volatile. “Zero Angle” is the angle, which is set for zero position. “Wake enable” enables the polling mode. “Sensitivity” is the gain setting in the signal path. “Redundancy” is the number of bits, which allows the customer to overwrite one of the customer OTP bits <0:11>. PROG_OTP: Programming of the OTP register. Only Bits <0:15> can be programmed by the customer. READ_OTP: Read out the content of the OTP register. Data written by WRITE_OTP and PROG_OTP is read out. READ ANA: Analog read out mode. The analog value of every OTP bit is available at pin 2 (PROG), which allows for a verification of the fuse process. No data is available at the SSI. Table 7. Commands of the SSI in Normal Mode Digital interface @ 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 gen_rst MTC2 (*) MTC1 (*) Hyst<1:0> analog Sig AGC_mux AGC2 PWM 20 SET MT COUNTER 10100 write multi-turn-counter <8:0> 19 SET AGC 10011 write agc_code <2:0> agc_tst_value <5:0> 16 EN PROG 10000 write 1 0 0 0 1 1 0 0 1 0 1 0 1 1 1 0 4 RD MT COUNTER 00100 read multi-turn-counter <8:0> ez_error 0 RD_ANGLE 00000 read lock_adc agc <5:0> angle <8:0> Table 8. Commands of the SSI in Extended Mode Digital interface @ extended mode number of bits 2 18 1 1 4 2 1 4 2 3 1 4 1 2 2 3 9 # cmd bin mode 61.. 60 59.. 42 41 40 39.. 36 35.. 32 31 30.. 27 26.. 25 24.. 22 21 20..1 7 16 15..1 4 13.. 12 11.. 9 8..0 31 WRITE OTP 11111 xt write otp tst ID hyst_2x cfg off_ cos off_ sin FM osc vref Hall Bias lock_otp (*) r_ad d r_bit sensi tivity abi uvw zero angle 25 PROG_OTP 11001 xt write otp tst ID hyst_2x LP osc vref LP osc vref Hall Bias lock_otp (*) r_ad d r_bit sensi tivity abi uvw zero angle 15 READ_OTP 01111 xt read otp tst ID hyst_2x LP osc vref LP osc vref Hall Bias lock_otp (*) r_ad d r_bit sensi tivity abi uvw zero angle 9 READ ANA 01001 xt read otp tst ID hyst_2x LP osc vref LP osc vref Hall Bias lock_otp (*) r_ad d r_bit sensi tivity abi uvw zero angle |
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