adsp-21478 Analog Devices, Inc., adsp-21478 Datasheet - Page 26

• Manufacturer Part Number: adsp-21478
• Description: Sharc Processor
• Manufacturer: Analog Devices, Inc.

ADSP-21478/ADSP-21479
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.
Table 18. Interrupts
Core Timer
The following timing specification applies to FLAG3 when it is
configured as the core timer (TMREXP).
Table 19. Core Timer
Parameter
Timing Requirement
t
Parameter
Switching Characteristic
t
IPW
WCTIM
(TMREXP)
TMREXP Pulse Width
FLAG3
IRQx Pulse Width
DAI_P20–1
DPI_P14–1
FLAG2–0
(
)
Rev. PrB | Page 26 of 70 | March 2010
Figure 12. Core Timer
Figure 11. Interrupts
t
IPW
Min
4 × t
t
WCTIM
PCLK
– 1
Preliminary Technical Data
Min
2 × t
PCLK
+ 2
Max
Max
Unit
ns
Unit
ns