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TMS320F2811PBKA 数据表(PDF) 84 Page - Texas Instruments |
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TMS320F2811PBKA 数据表(HTML) 84 Page - Texas Instruments |
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84 / 175 page  8.12.7 Interrupt Timing 8.12.7.1 Interrupt Switching Characteristics PARAMETER MIN MAX UNIT td(PDP-PWM)HZ Delay time, PDPINTx low to PWM high- impedance state Without input qualifier 12 ns With input qualifier 1tc(SCO) + IQT + 12(1) td(TRIP-PWM)HZ Delay time, CxTRIP/ TxCTRIP signals low to PWM high-impedance state Without input qualifier 3 * tc(SCO) ns With input qualifier 2tc(SCO) + IQT(1) td(INT) Delay time, INT low/high to interrupt-vector fetch IQT + 12tc(SCO) (1) ns (1) Input Qualification Time (IQT) = [tc(SCO) × 2 × QUALPRD] × 5 + [tc(SCO) × 2 × QUALPRD]. 8.12.7.2 Interrupt Timing Requirements MIN MAX UNIT tw(INT) Pulse duration, INT input low/high With no qualifier 2tc(SCO) cycles With qualifier 1tc(SCO) + IQT(1) tw(PDP) Pulse duration, PDPINTx input low With no qualifier 2tc(SCO) cycles With qualifier 1tc(SCO) + IQT(1) tw(CxTRIP) Pulse duration, CxTRIP input low With no qualifier 2tc(SCO) cycles With qualifier 1tc(SCO) + IQT(1) tw(TxCTRIP) Pulse duration, TxCTRIP input low With no qualifier 2tc(SCO) cycles With qualifier 1tc(SCO) + IQT(1) (1) Input Qualification Time (IQT) = [tc(SCO) × 2 × QUALPRD] × 5 + [tc(SCO) × 2 × QUALPRD]. PWM (C) TxCTRIP CxTRIP PDPINTx , , (B) XCLKOUT (A) t , t , t w(PDP) w(CxTRIP) w(TxCTRIP) t , t d(PDP-PWM)HZ d(TRIP-PWM)HZ XNMI, XINT1, XINT2 t w(INT) t d(INT) A0-A15 Interrupt Vector A. XCLKOUT = SYSCLKOUT B. TxCTRIP – T1CTRIP, T2CTRIP, T3CTRIP, T4CTRIP CxTRIP – C1TRIP, C2TRIP, C3TRIP, C4TRIP, C5TRIP, or C6TRIP PDPINTx – PDPINTA or PDPINTB C. PWM refers to all the PWM pins in the device (that is, PWMn and TnPWM pins or PWM pin pair relevant to each CxTRIP pin). The state of the PWM pins after PDPINTx is taken high depends on the state of the FCOMPOE bit. Figure 8-46. External Interrupt Timing TMS320F2810, TMS320F2810-Q1, TMS320F2811, TMS320F2811-Q1 TMS320F2812, TMS320F2812-Q1 SPRS174V – APRIL 2001 – REVISED FEBRUARY 2021 www.ti.com 84 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: TMS320F2810 TMS320F2810-Q1 TMS320F2811 TMS320F2811-Q1 TMS320F2812 TMS320F2812-Q1 |
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