MA28140 Datasheet, PDF (57/72 Pages) Dynex Semiconductor – Packet Telecommand Decoder

AU Status Report Serial Interface
PTD
AU1S
AU2S
TMC
TMD
APPLICATION
Telemetry
System
MA28140
T imin g
De scription
Min
Typ
Max
Taus1 (1)
AUS falling to TMC falling
16 Tck
Taus2
TMC high pulse width between octets
2 Tck
Taus3
TMC setup to AUS
0 ns
Taus4
AU1S rising to AU2S falling
2 Tck
Taus5
AU2S rising to AU2S falling
2 Tck
Taus6
AU2S rising to AU1S falling
4 Tck
Taus7 (1)
AUS falling to TMD valid (bit 0)
15 Tck
Ttmch
TMC high pulse width
Tck
Ttmcl
TMC low pulse width
Tck
Ttmc
TMC period
4 Tck
Tausout
TMC falling to TMD valid
1 Tck
2 Tck
Note (1): These timings are guaranteed when there is no request for the local bus through the BRQN input.
In addition when using slow memories, the local memory accesses may be delayed by using the LACK
input of duration d_L (defined by the user). In this case Taus1 and Taus6 become Taus1+2d_L and Taus7+2d_L.
Table 18: AU Status Report Serial Interface Timings
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