Datasheet

ADSP-21469
Rev. 0 | Page 25 of 72 | June 2010
Reset
Running Reset
The following timing specification applies to
RESETOUT
/RUNRSTIN pin when it is configured as
RUNRSTIN
.
Table 19. Reset
Parameter Min Max Unit
Timing Requirements
t
WRST
1
RESET Pulse Width Low 4 × t
CK
ns
t
SRST
RESET Setup Before CLKIN Low 8 ns
1
Applies after the power-up sequence is complete. At power-up, the processor’s internal phase-locked loop requires no more than 100 ms while RESET is low, assuming stable
V
DD
and CLKIN (not including start-up time of external clock oscillator).
Figure 9. Reset
CLKIN
RESET
t
SRST
t
WRST
Table 20. Running Reset
Parameter Min Max Unit
Timing Requirements
t
WRUNRST
Running RESET Pulse Width Low 4 × t
CK
ns
t
SRUNRST
Running RESET Setup Before CLKIN High 8 ns
Figure 10. Running Reset
CLKIN
RUNRSTIN
t
WRUNRST
t
SRUNRST