Motorola TMS320C6711D - Manual (Page 86)

TMS320C6711D
FLOATINGĆPOINT DIGITAL SIGNAL PROCESSOR
SPRS292A − OCTOBER 2005 − REVISED NOVEMBER 2005
86 POST OFFICE BOX 1443
•
HOUSTON, TEXAS 77251−1443
EXTERNAL INTERRUPT TIMING
timing requirements for external interrupts † (see Figure 41)
NO.
GDPA-167
ZDPA−167
−200
−250
UNIT
MIN MAX
1 tw(ILOW)
Width of the NMI interrupt pulse low 2P ns
1 tw(ILOW)
Width of the EXT_INT interrupt pulse low 4P ns
2 tw(IHIGH)
Width of the NMI interrupt pulse high 2P ns
2 tw(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