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AS5045B

Datasheet - Application In form atio n

9.1.6 Redundant Programming Option

In addition to the regular programming, a redundant programming option is available. This option allows that one selectable OTP bit can be set

to “1” (programmed state) by writing the location of that bit into a 5-bit address decoder. This address can be stored in bits RA4...RA0 in the OTP

user settings.

Example: setting RA4…0 to “00001” will select bit 51 = PWhalfEN_Indexwidth, “00010” selects bit 50 = MagCompEN, “10010” selects bit 34

=CCW, etc.

9.1.7 OTP Register Entry and Exit Condition

For timing options, refer to Programming the AS5045B (page 17).

Figure 12. OTP Access Timing Diagram

To avoid accidental modification of the OTP during normal operation, each OTP access (Load, Write, Read, Program) requires a defined entry

and exit procedure, using the CSn, PDIO and CLK signals as shown in Figure 12.

OTP Access

Setup Condition

Operation Mode Selection

Exit Condition

CSn

PDIO

CLK