Datasheet

ADSP-21483/ADSP-21486/ADSP-21487/ADSP-21488/ADSP-21489
Rev. B | Page 29 of 68 | March 2013
Watchdog Timer Timing
Pin to Pin Direct Routing (DAI and DPI)
For direct pin connections only (for example DAI_PB01_I to
DAI_PB02_O).
Table 27. Watchdog Timer Timing
Parameter Min Max Unit
Timing Requirement
t
WDTCLKPER
100 1000 ns
Switching Characteristics
t
RST
WDT Clock Rising Edge to Watchdog Timer
RESET Falling Edge
36.4 ns
t
RSTPW
Reset Pulse Width 64 × t
WDTCLKPER
ns
Figure 14. Watchdog Timer Timing
WDT_CLKIN
WDTRSTO
t
WDTCLKPER
t
RST
t
RSTPW
Table 28. DAI/DPI Pin to Pin Routing
Parameter Min Max Unit
Timing Requirement
t
DPIO
Delay DAI/DPI Pin Input Valid to DAI/DPI Output Valid 1.5 12 ns
Figure 15. DAI Pin to Pin Direct Routing
DAI_Pn
DPI_Pn
DAI_Pm
DPI_Pm
t
DPIO