Advanced Mode Mux Software Flow Control Per Channel; Mux Modes; Advance Mode Transparency Mechanism - Motorola G24 Guide Developer's Manual

Software Procedures Related to RS232 HW Lines

Advanced Mode MUX Software Flow Control Per Channel

The MUX software flow control per channel is not implemented in G24 internal MUX.

MUX Modes

The following table describes the differences between each mode in a non-ERM environment.
Note:

Advance Mode Transparency Mechanism

There is a set of protected characters that cannot appear between the start and end flags. These
characters are protected by the transparency mechanism within the following fields: address,
control, information and FCS. This mechanism is detailed in the packing/unpacking subsections
that follow.
B-4
Table B-1: MUX Mode Differences
Feature
Start flag
Close flag
Length field
Data transparency
Frame
Processing cost
Recovery of
synchronization
SW flow control per
channel
The length is still required in the information field of the UIH frame.
Table B-2: Protected Characters
Protected Characters
Flag sequence (SOF,
EOF)
Control escape
XON
XOFF
AT Commands Reference Manual
Basic Mode
0xF9
0xF9
Yes
No
UIH (or UI)
Low
Slow
Yes
Value
0x7e
0x7d
0x11
0x13
Advanced Mode
0x7E
0x7E
No
Yes
UIH (or UI)
High
Quick
No
Encoded Value
0x7d, 0x5e
0x7d, 0x5d
0x7d, 0x31
0x7d, 0x33
December 31, 2007