Motorola TMS320C6711D ユーザーズマニュアル
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
ZDPA−167
−200
−250
−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