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40 LCD Panel Operation
1.
The internal clock is the one that suits most applications and is
the default; in this case, the clock signal is generated by the
sending modem.
2.
The slave clock is used when in remote digital loopback mode.
3.
The external clock is a signal generated by the sending DTE.
INTERNAL
AT&X0
The modem provides the clock and
sends it to the DTE. Adaptive rate
can be used. (Default)
EXTERNAL
AT&X1
The DTE provides the clock and
sends it to the modem. Must use
auto-retrain, cannot use adaptive rate.
SLAVE
AT&X2
Recovered receiver clock serves as
transmission clock.
RTS Options
There are two RTS options. The choice depends on application and
host/terminal requirements. In asynchronous mode RTS is used as a
hardware flow control signal.
IGNORED
AT&R1
RTS is ignored; always
assumed to be ON. (Default)
CTS TRACKS RTS
AT&R0
Delay before CTS responds to
RTS's change. The delay is set
in the S26 register.
Command State Options
For synchronous data communication, there are two options you
can choose from to define how the modem will operate in the
command state.
SYNC DATA
AT&M1
The modem accepts asynchronous
commands in command state, but
Summary of Contents for U-336S
Page 1: ...U 336S User s Manual Version 2 0 Mar 1997 ZyXEL ACCESSING INTERNET INTRANET ...
Page 18: ...6 Introduction ...
Page 24: ...12 Installation ...
Page 72: ...60 Special Functions ...
Page 98: ...86 Fax Operation ...
Page 115: ...AT Command Set Summaries 103 ...
Page 138: ...126 Status Registers Result Codes Numerical V0 Verbose V1 Numerical V0 Verbose V1 14400 33600 ...
Page 139: ...Status Registers Result Codes 127 ...
Page 157: ...Connector Pinouts 145 ...