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Airborne Enterprise Module Databook Quatech, Inc.
100-8080-110 8/11/2009 31
9.0 RESET Function
For correct operation of the on-board Power-on RESET (POR) and internal RESET
controllers, the RESET pin on the WLNG-XX-DP500 family must obey the following
timing and signal conditions.
Figure 5 - Power on RESET Timing
Figure 6 - RESET Timing
Table 18 - RESET Timing
Symbol
Parameter
Min
Typ
Max
Units
t
PURST
Valid V
DD
to RESET valid
200
ms
t
RLRV
RESET Valid to RESET Low
0
ms
t
RPWI
Valid V
DD
to Internal RESET completed
200
ms
t
RPW
RESET Pulse Width
100
µs
For Hardware revisions Rev C2 and earlier additional timing constraints apply. Please contact
Quatech Technical Support for details.