AS5011

Data Sheet

www.austriamicrosystems.com

7.2

I²C Registers

The following registers / functions are accessible over the serial I²C interface.

Register

size

Acces

s

Address

Format

Reset Value

Bit

Description

Control Register 1

LP_pulsed

1

R/W

0x76

1

<7>

Low Power control register. See Table 2.

LP_active

1

R/W

0x76

0

<6>

Low Power control register. See Table 2.

LP_continue

1

R/W

0x76

0

<5>

For test only. Must be 0.

INT_wup_en

1

R/W

0x76

1

<4>

Interrupt control register.

If set, the interrupt pin goes low in Shutdown mode when

the magnet has moved away from the center, above the

xp, xn, yp yn threshold values.

INT_act_en

1

R/W

0x76

1

<3>

Interrupt control register.

If set, the interrupt pin goes LOW in Low Power mode

when a new XY value is ready for reading. Stores

coordinate until next read in full power mode,

ext_clk_en

1

R/W

0x76

0

<2>

For test only. Must be 0.

soft_rst

1

R/W

0x76

0

<1>

Soft Reset.

soft_rst = 0: normal mode

soft_rst = 1: all registers return to their respective reset

value

data_valid

1

R

0x76

0

<0>

Data valid.

data_valid = 0: no valid XY coordinates

data_valid = 1: valid data are ready to be read

Control Register 2

Test 7

1

R/W

0x75

0

<7>

For test only. Must be 0.

Test 6

1

R/W

0x75

1

<6>

For test only. Must be 1.

Test 5

1

R/W

0x75

0

<5>

For test only. Must be 0.

Test 4

1

R/W

0x75

0

<4>

For test only. Must be 0.

ext_sample_en

1

R/W

0x75

0

<3>

For test only. Must be 0.

rc_bias_on

1

R/W

0x75

0

<2>

For test only. Must be 0.

inv_spinning

1

R/W

0x75

0

<1>

Invert the channel voltage.

Set if the magnet polarity is reversed.

pptrim_en

1

R/W

0x75

0

<0>

For test only. Must be 0.

Range and position values

Xp

8

R/W

0x43

2’ comp

0x28

(40d)

Wakeup threshold on the positive X direction.

Xn

8

R/W

0x44

2’ comp

0xD8

(-40d)

Wakeup threshold on the negative X direction.

Yp

8

R/W

0x53

2’ comp

0x28

(40d)

Wakeup threshold on the positive Y direction.

Yn

8

R/W

0x54

2’ comp

0xD8

(-40d)

Wakeup threshold on the negative Y direction.

X

8

R

0x41

2’ comp

0x00

X position. The zero value means the horizontal center

position on the AS5011.

Y

8

R

0x42

2’ comp

0x00

Y position. The zero value means the vertical center

position on the AS5011.

X_res_int

8

R

0x51

2’ comp

0x00

X position. Releases INT_n to ‘1’

Y_res_int

8

R

0x52

2’ comp

0x00

Y position. Releases INT_n to ‘1’

Table 3: I²C Registers

Revision 3.10

9 – 16