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AM1707 Datasheet(PDF) 130 Page - Texas Instruments |
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AM1707 Datasheet(HTML) 130 Page - Texas Instruments |
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130 / 198 page  AM1707 SPRS637A – FEBRUARY 2010 – REVISED APRIL 2010 www.ti.com Table 6-73 is the list of the EQEP registers. Table 6-74 shows the eQEP timing requirement and Table 6-75 shows the eQEP switching characteristics. Table 6-73. EQEP Registers EQEP0 EQEP1 BYTE ADDRESS BYTE ADDRESS ACRONYM REGISTER DESCRIPTION 0x01F0 9000 0x01F0 A000 QPOSCNT eQEP Position Counter 0x01F0 9004 0x01F0 A004 QPOSINIT eQEP Initialization Position Count 0x01F0 9008 0x01F0 A008 QPOSMAX eQEP Maximum Position Count 0x01F0 900C 0x01F0 A00C QPOSCMP eQEP Position-compare 0x01F0 9010 0x01F0 A010 QPOSILAT eQEP Index Position Latch 0x01F0 9014 0x01F0 A014 QPOSSLAT eQEP Strobe Position Latch 0x01F0 9018 0x01F0 A018 QPOSLAT eQEP Position Latch 0x01F0 901C 0x01F0 A01C QUTMR eQEP Unit Timer 0x01F0 9020 0x01F0 A020 QUPRD eQEP Unit Period Register 0x01F0 9024 0x01F0 A024 QWDTMR eQEP Watchdog Timer 0x01F0 9026 0x01F0 A026 QWDPRD eQEP Watchdog Period Register 0x01F0 9028 0x01F0 A028 QDECCTL eQEP Decoder Control Register 0x01F0 902A 0x01F0 A02A QEPCTL eQEP Control Register 0x01F0 902C 0x01F0 A02C QCAPCTL eQEP Capture Control Register 0x01F0 902E 0x01F0 A02E QPOSCTL eQEP Position-compare Control Register 0x01F0 9030 0x01F0 A030 QEINT eQEP Interrupt Enable Register 0x01F0 9032 0x01F0 A032 QFLG eQEP Interrupt Flag Register 0x01F0 9034 0x01F0 A034 QCLR eQEP Interrupt Clear Register 0x01F0 9036 0x01F0 A036 QFRC eQEP Interrupt Force Register 0x01F0 9038 0x01F0 A038 QEPSTS eQEP Status Register 0x01F0 903A 0x01F0 A03A QCTMR eQEP Capture Timer 0x01F0 903C 0x01F0 A03C QCPRD eQEP Capture Period Register 0x01F0 903E 0x01F0 A03E QCTMRLAT eQEP Capture Timer Latch 0x01F0 9040 0x01F0 A040 QCPRDLAT eQEP Capture Period Latch 0x01F0 905C 0x01F0 A05C REVID eQEP Revision ID Table 6-74. Enhanced Quadrature Encoder Pulse (eQEP) Timing Requirements PARAMETER TEST CONDITIONS MIN MAX UNIT tw(QEPP) QEP input period Asynchronous/synchronous 2tc(SCO) cycles tw(INDEXH) QEP Index Input High time Asynchronous/synchronous 2tc(SCO) cycles tw(INDEXL) QEP Index Input Low time Asynchronous/synchronous 2tc(SCO) cycles tw(STROBH) QEP Strobe High time Asynchronous/synchronous 2tc(SCO) cycles tw(STROBL) QEP Strobe Input Low time Asynchronous/synchronous 2tc(SCO) cycles Table 6-75. eQEP Switching Characteristics PARAMETER MIN MAX UNIT td(CNTR)xin Delay time, external clock to counter increment 4tc(SCO) cycles td(PCS-OUT)QEP Delay time, QEP input edge to position compare sync output 6tc(SCO) cycles 130 Peripheral Information and Electrical Specifications Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): AM1707 |
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