Datasheet

ADSP-21483/ADSP-21486/ADSP-21487/ADSP-21488/ADSP-21489
Rev. B | Page 27 of 68 | March 2013
Interrupts
The following timing specification applies to the FLAG0,
FLAG1, and FLAG2 pins when they are configured as IRQ0
,
IRQ1
, and IRQ2 interrupts, as well as the DAI_P20–1 and
DPI_P14–1 pins when they are configured as interrupts.
Core Timer
The following timing specification applies to FLAG3 when it is
configured as the core timer (TMREXP).
Table 23. Interrupts
Parameter Min Max Unit
Timing Requirement
t
IPW
IRQx Pulse Width 2 × t
PCLK
+2 ns
Figure 10. Interrupts
INTERRUPT
INPUTS
t
IPW
Table 24. Core Timer
Parameter Min Max Unit
Switching Characteristic
t
WCTIM
TMREXP Pulse Width 4 × t
PCLK
– 1 ns
Figure 11. Core Timer
FLAG3
(TMREXP)
t
WCTIM