Eqep Maximum Position Count Register (Qposmax) Register; Eqep Position-Compare (Qposcmp) Register; Eqep Index Position Latch (Qposilat) Register; Eqep Strobe Position Latch (Qposslat) Register - Texas Instruments Concerto F28M36 Series Technical Reference Manual

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eQEP Registers

Table 9-8. eQEP Position Counter Initialization (QPOSINIT) Register Field Descriptions

Figure 9-27. eQEP Maximum Position Count Register (QPOSMAX) Register

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

Table 9-9. eQEP Maximum Position Count (QPOSMAX) Register Field Descriptions

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

Table 9-10. eQEP Position-compare (QPOSCMP) Register Field Descriptions

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

Table 9-11. eQEP Index Position Latch (QPOSILAT) Register Field Descriptions

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

C28 Enhanced QEP (eQEP) Module

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. Writes

to this register should always be full 32-bit writes.

This register contains the maximum position counter value. Writes to this register should

always be full 32-bit writes.

Figure 9-28. eQEP Position-compare (QPOSCMP) Register

The position-compare value in this register is compared with the position counter (QPOSCNT) to

generate sync output and/or interrupt on compare match.

Figure 9-29. eQEP Index Position Latch (QPOSILAT) Register

The position-counter value is latched into this register on an index event as defined by the

QEPCTL[IEL] bits.

Figure 9-30. eQEP Strobe Position Latch (QPOSSLAT) Register

SPRUHE8E – October 2012 – Revised November 2019

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