MA28140 Datasheet, PDF (63/72 Pages) Dynex Semiconductor – Packet Telecommand Decoder

MA28140
T imin g
De scription
Min
Typ
Max
Tar1 (1)
BRQN falling to BGRN falling
1.5 Tck
2.5 Tck
Tar2
BRQN rising to BGRN rising
1.5 Tck
2.5 Tck
Tar3
BGRN falling to Local Bus hi-Z
20 ns
Tar4
BGRN rising to Local Bus driven
20 ns
Note (1): This timing is dependent on the activity on the local bus. It is defined here for the case when the
PTD does not use the local bus.
Table 23: Local Bus Arbitration Timings
T imin g
Treset1
Treset2
Treset3
Treset4
De scription
ResetN low pulse width
ResetN asserted to local bus outputs at cold
start values (0,1;Z)
ResetN deasserted to PTD outputs at cold
start values (0,1;Z)
ResetN deasserted to end of initialisation
phase: PTD functional
Table 24: Reset Timings
Min
5 Tck
Typ
Max
60 ns
2 Tck
200 Tck
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