Functional Description
RPF &
/TIN & /PCE
Y
CMDR:RHR
Discard frame cont
>
528
RBCH, RBCL
?
Note: In this case the software
has to react instantaneously
to the RPF ( < 500 µs)
N
Read FIFO
CMDR:RMC
TIN or PCE
RSC
Change status
variable
Re-establishment
of the link
Note: For the congestion procedure
defined in 1 TRG of
the Deutsche Bundespost
refer to the Technical Manual
XDU or RFO
Please change your software:
Dynamic reaction is too slow
ITD05895
Figure 62
Interrupt Service Routines after RPF (top), TIN or PCE (middle left), RSC (middle right),
and XDU or RFO (bottom)
Semiconductor Group
133