Telenetics 56 - Manual (Page 63)

AT Commands
Page 55
&K - Flow Control
This command defines the DTE/DCE (terminal/modem) flow control mechanism. The
parameter value, if valid, is written to S39 bits 0, 1, and 2.
Syntax &K<value>
Defined Values
<value> Decimal number corresponding to the option.
0 Disables flow control.
3 Enables RTS/CTS flow control. (Default for data
modem modes.)
4 Enables XON/XOFF flow control.
5 Enables transparent XON/XOFF flow control.
Note: Upon reset, both RTS/CTS and
XON/XOFF flow control is enabled for fax
modem and voice modes.
Result Codes
OK <value> = 0, 3, 4, or 5.
ERROR Otherwise.
&M - Asynchronous/Synchronous Mode Selection
This command determines the DTR operating mode. The modem treats the &M
command as a subset of the &Q command.
Syntax &M<value>
Defined Values
<value> Decimal number corresponding to the option.
0 0 Selects direct asynchronous operation. The
command sequence &M0\N0 selects normal buffered
mode, but the command sequence \N0&M0 selects
direct mode. This is because the \N0 command is
analogous to the &Q6 command. The value 000b is
written to S27 bits 3, 1, and 0, respectively. (See &Q).
1 Selects synchronous connect mode with async off-line
command mode. The value 001b is written to S27 bits
3, 1, and 0, respectively. (Serial interface operation
only.) (SmartACF and SmartACFL only.)
2 Selects synchronous connect mode with async off-line
command mode. Same as &M1 except that &M2
enables DTR dialing of directory slot 0. The modem will
disconnect if DTR is OFF for more than the period in
S25 (in units of hundredths of a second): the data
connection will be synchronous. The value 010b is
written to S27 bits 3, 1, and 0, respectively. (Serial
interface operation only.) (SmartACF and SmartACFL
only.)
3 Selects synchronous connect mode. This mode allows
DTR to act as a talk/data switch. The call is manually
initiated while DTR is inactive. When DTR becomes
active, the handshake proceeds in originate or answer
mode according to S14 bit 7. The value 011b is written
to S27 bits 3, 1, and 0, respectively. (Serial interface
operation only.) (SmartACF and SmartACFL only.)
Result Codes
OK <value> = 0 to 3 (SmartACF and SmartACFL)