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TMS320P15 Datasheet(PDF) 39 Page - Texas Instruments |
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TMS320P15 Datasheet(HTML) 39 Page - Texas Instruments |
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39 / 146 page ![]() RL = 825 Ω, CL = 100 pF, (see Figure 2) RL = 825 Ω, CL = 100 pF, (see Figure 2) RL = 825 Ω, CL = 100 pF, (see Figure 2) TMS320C14, TMS320E14, TMS320P14 DIGITAL SIGNAL PROCESSORS SPRS009C – JANUARY 1987 – REVISED JULY 1991 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001 39 MICROCOMPUTER/MICROPROCESSOR MODE (NMI/MC/MP) timing requirements over recommended operating conditions MIN NOM MAX UNIT th(MC/MP)‡ Hold time after RS high tc(C) ns † Values were derived from characterization data and not tested. ‡ Hold time to put device in microprocessor mode. INTERRUPT (INT)/NONMASKABLE INTERRUPT (NMI) timing requirements over recommended operating conditions MIN NOM MAX UNIT tf(INT) Fall time, INT 15† ns tf(NMI) Fall time, NMI 15† ns tw(INT) Pulse duration, INT tc(C) ns tw(NMI) Pulse duration, NMI tc(C) ns tsu(INT) Setup time, INT before CLKOUT low (see Note 12) 60 ns tsu(NMI) Setup time, NMI before CLKOUT low (see Note 12) 60 ns NOTE 12: INT and NMI are synchronous inputs and can occur at any time during the cycle. NMI and INT are edge triggered only. BIT I/O TIMING switching characteristics over recommended operating conditions PARAMETER TEST CONDITIONS MIN NOM MAX UNIT trfo(IOP) Rise and fall time outputs 20† ns td(IOP) CLKOUT low to data valid outputs 0.75 tc(C) +80 ns timing requirements over recommended operating conditions TEST CONDITIONS MIN NOM MAX UNIT trfl(IOP) Rise and fall time inputs 20† ns tsu(IOP) Data setup time before CLKOUT time 40 ns tw(IOP) Input pulse duration tc(C) ns GENERAL PURPOSE TIMERS timing requirements over recommended operating conditions TEST CONDITIONS MIN NOM MAX UNIT tr(TIM) TCLK1, TCLK2 rise time 20† ns tf(TIM) TCLK1, TCLK2 fall time 20† ns twl(TIM) TCLK1, TCLK2 low time tc(C) +20 ns twh(TIM) TCLK1, TCLK2 high time tc(C) +20 ns tclk(TIM) Input pulse duration 2tc(C) +40 ns † Values were derived from characterization data and not tested. |
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