SPRUJ42 User guide | TI.com

SPRUJ42E March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1

PRODUCTION DATA

3.8.2.20 EQEP_QEPSTS Register

8.2.20.1 EQEP_QEPSTS Register (Offset = 38h) [reset = 80h]

QEP Status .

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Table 3-976 Instance Table

Instance Name	Physical Address
EQEP0	5027 0038h
EQEP1	5027 1038h
EQEP2	5027 2038h

Figure 3-458 EQEP_QEPSTS Name Register

15	14	13	12	11	10	9	8
RESERVED_1
R
0h
7	6	5	4	3	2	1	0
UPEVNT	FIDF	QDF	QDLF	COEF	CDEF	FIMF	PCEF
R/W1TS	R	R	R	R/W1TS	R/W1TS	R/W1TS	R
1h	0h	0h	0h	0h	0h	0h	0h

Table 3-977 EQEP_QEPSTS Register Field Descriptions

Bit	Field	Type	Reset	Description
15:8	RESERVED_1	R	0h	Reserved
7	UPEVNT	R/W1TS	1h	Unit position event flag 1 Unit position event detected. Write 1 to clear 0 No unit position event detected
6	FIDF	R	0h	Direction on the first index marker Status of the direction is latched on the first index event marker. 1 Clockwise rotation (or forward movement) on the first index event 0 Counter-clockwise rotation (or reverse movement) on the first index event
5	QDF	R	0h	Quadrature direction flag 1 Clockwise rotation (or forward movement) 0 Counter-clockwise rotation (or reverse movement)
4	QDLF	R	0h	EQEP direction latch flag 1 Clockwise rotation (or forward movement) on index event marker 0 Counter-clockwise rotation (or reverse movement) on index event marker
3	COEF	R/W1TS	0h	Capture overflow error flag 1 Overflow occurred in eQEP Capture timer (QEPCTMR). This bit is cleared by writing a '1'. 0 Overflow has not occurred.
2	CDEF	R/W1TS	0h	Capture direction error flag 1 Direction change occurred between the capture position event. This bit is cleared by writing a '1'. 0 Capture direction error has not occurred.
1	FIMF	R/W1TS	0h	First index marker flag 1 Set by first occurrence of index pulse. This bit is cleared by writing a '1'. 0 First index pulse has not occurred.
0	PCEF	R	0h	Position counter error flag. This bit is not sticky and it is updated for every index event. 1 Position counter error 0 No error occurred during the last index transition