Texas Instruments TMS320 2833 Series User Manual

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QPOSCMP
QPOSCNT
PCSOUT (active HIGH)
PCSPW
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PCEVNT
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eQEP counter
PCEVNT
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PCSOUT (active LOW)
PCSPW
eQEP Edge Capture Unit www.ti.com
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Enhanced Quadrature Encoder Pulse (eQEP)
Figure 6-13. eQEP Position-compare Event Generation Points
The pulse stretcher logic in the position-compare unit generates a programmable position-compare sync
pulse output on the position-compare match. In the event of a new position-compare match while a
previous position-compare pulse is still active, then the pulse stretcher generates a pulse of specified
duration from the new position-compare event as shown in Figure 6-14.
Figure 6-14. eQEP Position-compare Sync Output Pulse Stretcher
6.6 eQEP Edge Capture Unit
The eQEP peripheral includes an integrated edge capture unit to measure the elapsed time between the
unit position events as shown in Figure 6-15. This feature is typically used for low speed measurement
using the following equation:
(3)
where,

Texas Instruments TMS320 2833 Series Specifications

General

Brand	Texas Instruments
Model	TMS320 2833 Series
Category	Controller
Language	English