Texas-instruments TMS320C6454 Instrukcja Użytkownika Pobierz pdf (Strona 115)

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PRODUCT PREVIEW

7.5.2 External Interrupts Electrical Data/Timing

NMI

TMS320C6454

Fixed-Point Digital Signal Processor

SPRS311A – APRIL 2006 – REVISED DECEMBER 2006

Table 7-11. Timing Requirements for External Interrupts

(1)

(see Figure 7-6 )

-720

-850

NO. UNIT

-1000

MIN MAX

1 t

w(NMIL)

Width of the NMI interrupt pulse low 6P ns

2 t

w(NMIH)

Width of the NMI interrupt pulse high 6P ns

(1) P = 1/CPU clock frequency in ns. For example, when running parts at 1000 MHz, use P = 1 ns.

Figure 7-6. NMI Interrupt Timing

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