Data Transfer; Block Flow Diagram For Data Received By The Module; Figure 6: Block Flow Diagram For Data Received By The Module - Siemens 7 Developer's Manual

Multiplexer Driver Developer's Guide

7.4 Data Transfer

7.4 Data Transfer
7.4.1

Block Flow Diagram for Data Received by the Module

S e rM u x fu n c tio n s s e q u e n c e , if c h a ra c te rs fro m th e p h y s ic a l D e v ic e
re t
S e rP o rt0 In d ic a te F ra m e ()
Mux_Drv_DevGuide_v07
Confidential / Released
to th e S e rM u x O b je c t a re in d ic a te d
W rIn d ic a te R e a d B u ffe r
y e s
a ll b y te s
s c a n n e d ?
P ro c e s s C h a r
F ra m e v a lid ?
D e m u x In d ic a te F ra m e
A d d re s s ! = D L C I 0
& & U IH -F ra m e ?
U IH -F ra m e ?
U A -F ra m e
o r
D M -F ra m e ?
S A B M o r
D IS C F ra m e
n o t v a lid
(M a s te r)
S e n d P o rt= =
T R U E ?
S e rM u xS e n d (), m u s t
c a ll if re c e iv e a F C -B it= 0 , th e n
s ta rt th e s e n d in g

Figure 6: Block flow diagram for data received by the module

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2006-9-27