Datasheet

This register provides status about the operation of the QEI module.

QEI Status (QEISTAT)

QEI0 base: 0x4002.C000

QEI1 base: 0x4002.D000

Offset 0x004

Type RO, reset 0x0000.0000

16171819202122232425262728293031

reserved

ROROROROROROROROROROROROROROROROType

0000000000000000Reset

0123456789101112131415

Error

Direction

reserved

ROROROROROROROROROROROROROROROROType

0000000000000000Reset

DescriptionResetTypeNameBit/Field

Software should not rely on the value of a reserved bit. To provide

compatibility with future products, the value of a reserved bit should be

preserved across a read-modify-write operation.

0x00ROreserved31:2

Direction of Rotation

Indicates the direction the encoder is rotating.

The Direction values are defined as follows:

DescriptionValue

Forward rotation0

Reverse rotation1

0RODirection1

Error Detected

Indicates that an error was detected in the gray code sequence (that is,

both signals changing at the same time).

0ROError0

June 18, 2012706

Texas Instruments-Production Data

Quadrature Encoder Interface (QEI)

NRND: Not recommended for new designs.