Motorola TMS320C6711D Manual de usuario Pagina 86

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   
SPRS292A − OCTOBER 2005 − REVISED NOVEMBER 2005
86
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EXTERNAL INTERRUPT TIMING
timing requirements for external interrupts
(see Figure 41)
NO.
GDPA-167
ZDPA−167
−200
−250
UNIT
MIN MAX
1
t
w(ILOW)
Width of the NMI interrupt pulse low 2P ns
1 t
w(ILOW)
Width of the EXT_INT interrupt pulse low 4P ns
2
t
w(IHIGH)
Width of the NMI interrupt pulse high 2P ns
2
t
w(IHIGH)
Width of the EXT_INT interrupt pulse high 4P ns
P = 1/CPU clock frequency in ns. For example, when running parts at 250 MHz, use P = 4 ns.
2
1
EXT_INT, NMI
Figure 41. External/NMI Interrupt Timing
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