AS5147 datasheet(17/35 Pages) AMSCO

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ams Datasheet: 2014-Jun-27 [v1-04]

AS5147 – 17

Detaile d Desc rip t ion

Figure 29:

SETTINGS1 (0x0018)

Figure 30:

SETTINGS2 (0x0019)

The hysteresis (Figure 35)is in terms of the chosen resolution

(11 bits vs. 10 bits). The ABIRES resolution does not affect the

UVW signals.

Name

Read/Write/Program

Bit Position

Description

IWIDTH

R/W/P

Width of the index pulse I

(0 = 3LSB, 1 = 1LSB)

NOISESET

R/W/P

Noise setting

DIR

R/W/P

Rotation direction

UVW_ABI

R/W/P

Defines the PWM Output

(0 = ABI is operating, W is used as PWM

1 = UVW is operating, I is used as PWM)

DAECDIS

R/W/P

Disable Dynamic Angle Error Compensation

(0 = DAE compensation on, 1 = DAE

compensation off )

Dataselect

R/W/P

This bit defines which data can be read form

address 16383dec (3FFFhex).

0->DAECANG

1->CORDICANG

PWMon

R/W/P

enables PWM (setting of UVW_ABI Bit necessary)

Name

Read/Write/Program

Bit Position

Description

UVWPP

R/W/P

2:0

UVW number of pole pairs

(000 = 1, 001 = 2, 010 = 3, 011 = 4, 100 = 5, 101 = 6,

110 = 7, 111 = 7)

HYS

R/W/P

4:3

Hysteresis for 11 Bit ABI Resolution: (00=3LSB, 01=

2LSB,10=1LSB,11=no hysteresis)

Hysteresis for 10 Bit ABI Resolution: (00=2LSB, 01=

1LSB,10=no Hysteresis LSB,11=3LSB)

ABIRES

R/W/P

Resolution of ABI (0 = 11 bits, 1 = 10 -bits)

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