6.7
Optimal Channel Usage
A host application can choose to use more than two channels. For example, one for
AT commands such as SMS commands and +CSQ command, one for unsolicited
responses, and one or more for on board TCP/IP socket connections, where each
socket connection runs in a separate channel.
It is generally good idea that a host application uses as few numbers of channels as
possible, thereby minimizing the use of resources (memory, processing power, etc.)
on both the host application side and GR/GS64 side. Although user data channels
have same priorities, as explained in section 6.6, a heavily utilized channel could
delay the servicing of other channels. The number of channels should be carefully
considered up front for the host application design.
7
Host Side MUX Driver Designs
In a typical host application that uses MUX, 27.010 is part of a port driver which
includes a port emulation entity that supports serial communication APIs. The
communication APIs vary from operating system to operating system and from device
to device. 27.010 standard defines a set of services such as Request, Indication,
Response, and Confirmation that can be used by all port drivers. The services are
shown in the Figure 3.
Gx64 APPLICATION NOTE
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27.010 MUX Feature
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