AS5040 View Datasheet(PDF) - austriamicrosystems AG
Part Name
Description
View to exact match
AS5040 Datasheet PDF : 33 Pages
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AS5040
Data Sheet
Table 6: One Time Programmable (OTP) Register Options
Mode
Default (Mode0.0)
quadAB-Mode1.0
quadAB-Mode1.1
quadAB-Mode1.2
quadAB-Mode1.3
quadAB-Mode1.4
quadAB-Mode1.5
quadAB-Mode1.6
quadAB-Mode1.7
Step/Dir-Mode2.0
Step/Dir-Mode2.1
Step/Dir -Mode2.2
Step/Dir -Mode2.3
Step/Dir -Mode2.4
Step/Dir -Mode2.5
Step/Dir -Mode2.6
Step/Dir -Mode2.7
Commutation-
Mode3.0
Commutation-
Mode3.1
Commutation-
Mode3.2
Commutation-
Mode3.3
OTP-Mode-Register-Bit
Md1 Md0 Div1 Div0 Index 3
0
0
0*
0*
0*
0
1
0
0
0
0
1
0
0
1
0
1
0
1
0
0
1
0
1
1
A
0
1
1
0
0
0
1
1
0
1
0
1
1
1
0
0
1
1
1
1
1
0
0
0
0
1
0
0
0
1
1
0
0
1
0
1
0
0
1
1
LSB
1
0
1
0
0
1
0
1
0
1
1
0
1
1
0
1
0
1
1
1
1
1
0
0
0
U(0º)
1
1
0
1
0
1
1
1
0
0
U’
(0º,
1
1
1
1
0
180º)
Pin #
4
6
1LSB
1LSB
3LSBs
1LSB
B
3LSBs
1LSB
3LSBs
1LSB
3LSBs
1LSB
3LSBs
1LSB
3LSBs
Dir
1LSB
3LSBs
1LSB
3LSBs
V(120º) W(240º)
V’
(60º,
240º)
W’
(120º, 300º)
Note: Div1, Div0 and Index cannot be programmed in Mode 0:0
12
PWM
10 bit
PWM
10 bit
LSB
LSB
Pulses per
Revolution
ppr
2x256
2x128
2x64
2x32
512
256
128
64
3x1
2x3
Incremental
Resolution
bit
10
9
8
7
10
9
8
7
10
9
10
9
Zero Position Programming
Zero position programming is an OTP option that simplifies assembly of a system, as the magnet does not need to be
manually adjusted to the mechanical zero position. Once the assembly is completed, the mechanical and electrical
zero positions can be matched by software. Any position within a full turn can be defined as the permanent new
zero/index position.
For zero position programming, the magnet is turned to the mechanical zero position (e.g. the “off”-position of a rotary
switch) and the actual angular value is read.
This value is written into the OTP register bits Z9:Z0 (see Figure 14) and programmed as described in section 12.
This new absolute zero position is also the new Index pulse position for incremental output modes.
Note: The zero position value may also be modified before programming, e.g. to program an electrical zero position
that is 180° (half turn) from the mechanical zero position, just add 512 to the value read at the mechanical zero
position and program the new value into the OTP register.
www.austriamicrosystems.com
Revision 2.10
19 - 33
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