Datasheet

ADSP-21060/ADSP-21060L/ADSP-21062/ADSP-21062L/ADSP-21060C/ADSP-21060LC
Rev. F | Page 23 of 64 | March 2008
Interrupts
Timer
Table 11. Interrupts
5 V and 3.3 V
Unit
Parameter Min Max
Timing Requirements
t
SIR
IRQ2–0 Setup Before CLKIN High
1
18 + 3DT/4 ns
t
HIR
IRQ2–0 Hold Before CLKIN High
1
12 + 3DT/4 ns
t
IPW
IRQ2–0 Pulse Width
2
2+t
CK
ns
1
Only required for IRQx recognition in the following cycle.
2
Applies only if t
SIR
and t
HIR
requirements are not met.
Figure 11. Interrupts
CLKIN
IRQ2–0
t
IPW
t
SIR
t
HIR
Table 12. Timer
5 V and 3.3 V
Unit
Parameter Min Max
Switching Characteristic
t
DTEX
CLKIN High to TIMEXP 15 ns
Figure 12. Timer
CLKIN
TIMEXP
t
DTEX
t
DTEX