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AM261...ZEJQ1 数据表(PDF) 119 Page - Texas Instruments |
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AM261...ZEJQ1 数据表(HTML) 119 Page - Texas Instruments |
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119 / 218 page  6.11.5.4 Enhanced Quadrature Encoder Pulse (eQEP) Note The device has multiple EQEP modules. The generic QEP_ prefix is used to represent the signal names for all EQEP instances. For more information, see Enhanced Quadrature Encoder Pulse (EQEP) Module section in the device TRM. 6.11.5.4.1 EQEP Timing Conditions PARAMETER MIN MAX UNIT INPUT CONDITIONS SRI Input Slew Rate 1 4 V/ns OUTPUT CONDITIONS CL Output Load Capacitance 2 7 pF 6.11.5.4.2 EQEP Timing Requirements NO. PARAMETER DESCRIPTION MIN MAX UNIT QEP1 tw(QEPP) QEP input period Synchronous(3) 3P(1) ns With input qualifier 2 × (P(1) + U(2)) QEP2 tw(INDEXH) QEP Index Input High time Synchronous(3) 2 + 3P(1) ns With input qualifier 2P(1) + U(2) QEP3 tw(INDEXL) QEP Index Input Low time Synchronous(3) 3P(1) ns With input qualifier 2P(1) + U(2) QEP4 tw(STROBH) QEP Strobe High time Synchronous(3) 3P(1) ns With input qualifier 2P(1) + U(2) QEP5 tw(STROBL) QEP Strobe Input Low time Synchronous(3) 3P(1) ns With input qualifier 2P(1) + U(2) (1) P = sysclk period in ns. (2) U = the input qualifier sampling window. See GPIO Electrical Data and Timing section for details on Input Qualifier Mode. (3) The GPIO GPxQSELn Asynchronous mode should not be used for EQEP module input pins. QEP_S QEP4 EPERIPHERALS_TIMNG_03 QEP_I QEP2 QEP_A/B QEP1 QEP3 QEP5 Figure 6-22. EQEP Timing Requirements www.ti.com AM2612, AM2611, AM2611-Q1, AM2612-Q1 SPRSPA7C – SEPTEMBER 2024 – REVISED JULY 2025 Copyright © 2025 Texas Instruments Incorporated Submit Document Feedback 119 Product Folder Links: AM2612 AM2611 AM2611-Q1 AM2612-Q1 |
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