Datasheet

eQEP Registers

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33.3.1 eQEP Position Counter Register (QPOSCNT)

Figure 33-21. eQEP Position Counter Register (QPOSCNT)

31 0

QPOSCNT

R/W-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 33-4. eQEP Position Counter Register (QPOSCNT) Field Descriptions

Bits Name Description

31-0 QPOSCNT This 32-bit position counter register counts up/down on every eQEP pulse based on direction input. This

counter acts as a position integrator whose count value is proportional to position from a give reference point.

33.3.2 eQEP Position Counter Initialization Register (QPOSINIT)

Figure 33-22. eQEP Position Counter Initialization Register (QPOSINIT)

31 0

QPOSINIT

R/W-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 33-5. eQEP Position Counter Initialization Register (QPOSINIT) Field Descriptions

Bits Name Description

31-0 QPOSINIT This register contains the position value that is used to initialize the position counter based on external strobe

or index event. The position counter can be initialized through software.

33.3.3 eQEP Maximum Position Count Register (QPOSMAX)

Figure 33-23. eQEP Maximum Position Count Register (QPOSMAX)

31 0

QPOSMAX

R/W-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 33-6. eQEP Maximum Position Count Register (QPOSMAX) Field Descriptions

Bits Name Description

31-0 QPOSMAX This register contains the maximum position counter value.

1696

Enhanced QEP (eQEP) Module SPNU562–May 2014

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