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32.3.1 Example 1 - Absolute Time-Stamp Operation Rising Edge Trigger .................................... 1654
32.3.2 Example 2 - Absolute Time-Stamp Operation Rising and Falling Edge Trigger...................... 1656
32.3.3 Example 3 - Time Difference (Delta) Operation Rising Edge Trigger .................................. 1658
32.3.4 Example 4 - Time Difference (Delta) Operation Rising and Falling Edge Trigger .................... 1660
32.4 Application of the APWM Mode ....................................................................................... 1662
32.4.1 Simple PWM Generation (Independent Channel/s) ...................................................... 1662
32.5 eCAP Registers.......................................................................................................... 1663
32.5.1 Time-Stamp Counter Register (TSCTR) ................................................................... 1663
32.5.2 Counter Phase Control Register (CTRPHS)............................................................... 1663
32.5.3 Capture-1 Register (CAP1) .................................................................................. 1664
32.5.4 Capture-2 Register (CAP2) .................................................................................. 1664
32.5.5 Capture-3 Register (CAP3) .................................................................................. 1665
32.5.6 Capture-4 Register (CAP4) .................................................................................. 1665
32.5.7 ECAP Control Register 2 (ECCTL2)........................................................................ 1666
32.5.8 ECAP Control Regiser 1 (ECCTL1) ........................................................................ 1668
32.5.9 ECAP Interrupt Flag Register (ECFLG) .................................................................... 1670
32.5.10 ECAP Interrupt Enable Register (ECEINT) .............................................................. 1671
32.5.11 ECAP Interrupt Forcing Register (ECFRC) .............................................................. 1672
32.5.12 ECAP Interrupt Clear Register (ECCLR) ................................................................. 1673
33 Enhanced QEP (eQEP) Module ......................................................................................... 1674
33.1 Introduction............................................................................................................... 1675
33.2 Basic Operation.......................................................................................................... 1677
33.2.1 EQEP Inputs ................................................................................................... 1677
33.2.2 Functional Description ........................................................................................ 1678
33.2.3 eQEP Watchdog............................................................................................... 1693
33.2.4 Unit Timer Base ............................................................................................... 1693
33.2.5 eQEP Interrupt Structure..................................................................................... 1694
33.3 eQEP Registers ......................................................................................................... 1695
33.3.1 eQEP Position Counter Register (QPOSCNT)............................................................ 1696
33.3.2 eQEP Position Counter Initialization Register (QPOSINIT) ............................................. 1696
33.3.3 eQEP Maximum Position Count Register (QPOSMAX) ................................................. 1696
33.3.4 eQEP Position-Compare Register (QPOSCMP).......................................................... 1697
33.3.5 eQEP Index Position Latch Register (QPOSILAT) ....................................................... 1697
33.3.6 eQEP Strobe Position Latch Register (QPOSSLAT) ..................................................... 1697
33.3.7 eQEP Position Counter Latch Register (QPOSLAT) ..................................................... 1698
33.3.8 eQEP Unit Timer Register (QUTMR)....................................................................... 1698
33.3.9 eQEP Unit Period Register (QUPRD) ...................................................................... 1698
33.3.10 eQEP Watchdog Period Register (QWDPRD)........................................................... 1699
33.3.11 eQEP Watchdog Timer Register (QWDTMR) ........................................................... 1699
33.3.12 eQEP Control Register (QEPCTL) ........................................................................ 1700
33.3.13 eQEP Decoder Control Register (QDECCTL) ........................................................... 1702
33.3.14 eQEP Position-Compare Control Register (QPOSCTL)................................................ 1703
33.3.15 eQEP Capture Control Register (QCAPCTL)............................................................ 1704
33.3.16 eQEP Interrupt Flag Register (QFLG) .................................................................... 1705
33.3.17 eQEP Interrupt Enable Register (QEINT) ................................................................ 1706
33.3.18 eQEP Interrupt Force Register (QFRC) .................................................................. 1707
33.3.19 eQEP Interrupt Clear Register (QCLR) ................................................................... 1708
33.3.20 eQEP Capture Timer Register (QCTMR)................................................................. 1709
33.3.21 eQEP Status Register (QEPSTS) ......................................................................... 1710
33.3.22 eQEP Capture Timer Latch Register (QCTMRLAT) .................................................... 1711
33.3.23 eQEP Capture Period Register (QCPRD)................................................................ 1711
33.3.24 eQEP Capture Period Latch Register (QCPRDLAT) ................................................... 1711
34 Enhanced Pulse Width Modulator (ePWM) Module.............................................................. 1712
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Contents SPNU562–May 2014
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