Motorola MPC823e Reference Manual page 726

Communication Processor Module
Figure 16-92 illustrates the algorithms, since some cases are not addressed in RFC 1549.
XOR_NEXT=1
END OF FRAME
16-272
RX CHAR
CHAR ≥≤ 0X20
F
XOR_NEXT ?
F
CHAR ≥= CTRL ESC?
F
CHAR ≥= CLOSING
FLAG ?
F
WRITE CHAR TO
BUFFER
EXIT
Figure 16-92. Reception Flowchart
MPC823e REFERENCE MANUAL
MAPPED ?
F
CHAR ≥= CLOSING
FLAG ?
F
CHAR ⊕ 0X20
XOR_NEXT =0
ABORT
EXIT
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