AS5046ASSU データシートの表示（PDF） - austriamicrosystems AG
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AS5046ASSU
austriamicrosystems AG
AS5046ASSU Datasheet PDF : 33 Pages
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AS5046 Programmable 360° Magnetic Angle Encoder – Preliminary Data Sheet
8 Two Wire Serial Interface
The AS5046 is accessible via an bi-directional serial interface.
CSn must be low during serial data transmission.
8.1 Serial Interface Timing Diagrams
The registers in the AS5046 are available in a data length of 8 bit (1 byte), 24 bit (3 bytes) and 32 bit (4 bytes).
Shown below in Figure 6 is a common 8-bit data transfer.
Figure 6: 8-bit serial Read / Write timing
Figure 7 shows a transfer timing diagram for the first 16 bits of the Serial Interface Unit.
Figure 7: 16-bit serial Read / Write timing
9 Accessible Registers for Serial Interface
Status Register
Internal
Type
Identifier
Serial Interface Unit 0101
000
Register
Internal
Read /
Bit
Note
Address
Write
Count
10 bit angle <upper 10bits: D11:D2>
Programmable with
32
A2...A0 1)
6 bit status
Read only 8 bit magnitude
2 bit angle <lower 2 bits: D1:D0>
Hall Sensor Front End 0001
ADC outputs, SIN/COS
0100
signal bus
Automatic Gain Control 0111
000 -111 fixed address range 8
000 fixed address
24
000 Fixed address
8
8 selectable Hall front-end status
Read / Write
registers
Read / Write
12bit SIN , 12bit COS input
2)
Read / Write
AGC Counter
3)
Table 2: Serial register overview
Revision 1.1
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