AK7451 Datasheet, PDF (11/32 Pages) Asahi Kasei Microsystems – zero latency angle sensor ic

[AK7451]
12. Instructions
The AK7451’s function is described in this section. The function is roughly divided into programing
procedure (for various setup) and an angle measurement procedure. The operation procedure is as
follows.
<Programing Procedure>
1. The AK7451 will start as “Normal Mode” after power on automatically.
2. Transfer to “User Mode” and write configuration parameters in EEPROM and then verify the data.
3. Transfer to “Normal Mode” and then The AK7451 will output the angle data based on programed
parameter.
<Normal Operation (Angle measurement)>
1. Transfer to “Normal Mode”.
2. Input the “read angle command” as OPCODE”1001” via SPI, when the absolute angle data is
needed. If relative angle data is needed, count the ABZ output pulses. The ABZ pulses and UVW
pulses are outputted right after startup along with magnet rotating.
016006637-E-00
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2016/05