AS5050A datasheet(19/31 Pages) AMSCO

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ams Datasheet

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[v2-06] 2014-Oct-14

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AS5050A − Registers

The on-chip registers are shown in Figure 22.

Figure 22:

Registers

POR OFF (0x3F22)

Writing the value 0x5A to the POR OFF Register (0x3F22)

deactivates the POR cell and reduces the current consumption

in low power mode (IOFF).

Software Reset (0x3C00)

Writing to the Software Reset Register initiates a Software

Reset. With the RES SPI bit of the Data Package set to 1 it is

possible to reset the SPI registers. After a software reset a new

angle conversion is started; this is needed to set the AS5050A

into an initial state. This angle is not readable by the

microcontroller.

The AS5050A is ready as soon as INT/ is driven low or a minimum

time (treadout) has elapsed.

Figure 23:

Software Reset Command

Name

Address

Bits

Mod

Default

Description

POR OFF

0x3F22

7:0

R/W

0x0000

Power On Reset OFF

Software Reset

0x3C00

13:0

0x0000

Software Reset

Master Reset

0x33A5

13:0

0x0000

Master Reset

Clear EF

0x3380

13:0

0x0000

Clear Error Flag

NOP

0x0000

13:0

0x0000

No Operation

AGC

0x3FF8

5:0

R/W

0x0020

Automatic Gain Control

Angular Data

0x3FFF

13:0

0x0000

Measured Angle

Error Status

0x335A

13:0

0x0000

Error Status Register

System Config

0x3F20

9:13

R/W

0x000

System Configuration Register 1

Bit

98765

Content

0PAR

Registers

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