r6781-12 Conexant Systems, Inc., r6781-12 Datasheet - Page 50
r6781-12
Manufacturer Part Number
r6781-12
Description
Embedded Modem Family
Manufacturer
Conexant Systems, Inc.
Datasheet
1.R6781-12.pdf
(104 pages)
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Table 4-2. AT Command Set Summary (3 of 5)
4-4
&Dn
&F
&Gn
&Jn
&L0
&Mn
&Pn
&Q0
&Sn
Command
DTR option
Recall (restore) factory profile
Select guard tone
Telephone jack control
Dial-up line operation
Asynchronous mode
Pulse dial make/break ratio
Asynchronous mode
DSR override
Function
n = 0
n = 0
n = 0
n = 0
n = 0
n = 0
n = 0
n = 0
Default
—
Conexant
n = 0
n = 1
n = 2
n = 3
S Registers: S0=1, S1=0, S2=43. S3=13, S4=10, S5=8, S6=0,
S7=30, S8=2, S9=5, S10=14, S11=95, S12=50, S18=0, S25=5,
S26=1
Commands: B1, C1, E1, F1, L2, M1, P, Q0, V1, Y0, X4, &C0, &D0,
&G0, &J0, &M0/&G0, &P0, &R0, &S0, &T4, &X0
n = 0
n = 1
n = 2
n = 0
n = 1
n = 0
n = 0
n = 1
n = 2
n = 3
n = 0
n = 1
n = 0
n = 1
n = 2
n = 3
n = 0
n = 1
Idle State
Modem ignores DTR.
Modem assumes command state when ON-to-OFF
transition is detected on DTR.
Modem hangs up, assumes command state and disables
auto-answer upon detecting ON-toOFF transition on
DTR.
Modem assumes software reset state upon detecting
ON-to-OFF transition on DTR.
No guard tone.
550 Hz guard tone.
1800 Hz guard tone.
Suitable for RJ11, RJ41S. or RJ45S type phone jack.
Suitable for RJ12 or RJ13 type phone jack; the A lead is
connected to A1 lead while the modem is off-hook.
Requests dial-up operation.
Asynchronous operation.
Reserved
Reserved
Reserved
Selects 39%–61% make/break ratio at 10 pps.
(USA/Canada)
Selects 33%–67% make/break ratio at 10 pps. (UK/HK)
DSR will remain ON at all times.
DSR will become active after answer tone has been
detected and inactive after the carrier has been lost. DSR
is OFF when the modem is in test mode or idle state.
Normal
Reserved
Reserved
Reserved
Parameters/Description
On-line State
Asynchronous
Reserved
Reserved
Reserved
EmbeddedModem Family
D224ATLVDSC
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