QFLG:UTOQUPRD
32
QUTMR
32
QEPCTL:UTE
UTIME
SYSCLKOUT
UTOUT
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Unit Timer Base
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SPRUI07–March 2020
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Enhanced Quadrature Encoder Pulse (eQEP)
6.8 Unit Timer Base
The eQEP peripheral includes a 32-bit timer (QUTMR) that is clocked by SYSCLKOUT to generate
periodic interrupts for velocity calculations. Whenever the unit timer (QUTMR) matches the unit period
register (QUPRD), it resets the unit timer (QUTMR) and also generates the unit time out interrupt flag
(QFLG[UTO]). The unit timer gets reset whenever timer value equals to configured period value.
The eQEP peripheral can be configured to latch the position counter, capture timer, and capture period
values on a unit time out event so that latched values are used for velocity calculation as described in
Section 6.6.
Figure 6-19. eQEP Unit Time Base
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