Car Stereo System - Car Radio Digital Signal Processor User Manual
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7.5.2 External Interrupts Electrical Data/Timing
2
1
NMI
SM320C6455-EP
FIXED-POINT DIGITAL SIGNAL PROCESSOR
SPRS462B – SEPTEMBER 2007 – REVISED JANUARY 2008
Table 7-11. Timing Requirements for External Interrupts
(1)
(see Figure 7-6 )
-720
-850
A-1000/-1000
NO. UNIT
-1200
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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