Texas Instruments TMS320C6202 External Interrupt Timing, EXTINTx, NMI Intr Flag, INUMx

TMS320C6202

FIXED-POINT DIGITAL SIGNAL PROCESSOR

SPRS072B ± AUGUST 1998 ± REVISED AUGUST 1999

		EXTERNAL INTERRUPT TIMING
timing requirements for interrupt response cycles² (see Figure 25)
			'C6202-200
NO.			'C6202-233		UNIT
			'C6202-250
			MIN	MAX
2	tw(ILOW)	Width of the interrupt pulse low	2P		ns
3	tw(IHIGH)	Width of the interrupt pulse high	2P		ns

² P = 1/CPU clock frequency in ns. For example, when running parts at 250 MHz, use P = 4 ns.

switching characteristics during interrupt response cycles² (see Figure 25)

			'C6202-200
NO.		PARAMETER	'C6202-233		UNIT
			'C6202-250
			MIN	MAX
1	tR(EINTH ± IACKH)	Response time, EXT_INTx high to IACK high	9P		ns
4	td(CKO2L-IACKV)	Delay time, CLKOUT2 low to IACK valid	0	10	ns
5	td(CKO2L-INUMV)	Delay time, CLKOUT2 low to INUMx valid	0	10	ns
6	td(CKO2L-INUMIV)	Delay time, CLKOUT2 low to INUMx invalid	0	10	ns

²P = 1/CPU clock frequency in ns. For example, when running parts at 250 MHz, use P = 4 ns.

1

CLKOUT2

3 2

EXT_INTx, NMI

Intr Flag

4

IACK

5

4

6

ADVANCE INFORMATION

INUMx Interrupt Number

Figure 25. Interrupt Timing

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