Lucent Technologies Host-Based Controller Modem AT Data Addendum page 60

Host-Based Controller Modem
AT Command Set
V.80 AT Commands (continued)
Table 10. V.80 AT Commands (continued)
Command
+ESA=[<trans_idle>[,<framed
_idle>[,,,<crc_type>[,<nrzi_en
>]]]]
+ESA?
+ESA=?
+ITF= [<off>[, <on>]]
+ITF=?
60
Sub-
parameters
trans_idle
0 In transparent sub-
mode, DCE transmits
marks (ones) on idle.
framed_idle
0 In Framed sub-
mode, DCE transmits
HDLC flags on idle.
1 In Framed sub-
mode, DCE transmits
marks (ones) on idle.
crc_type
0 Disable CRC
generation and checking
1 In Framed sub-
mode, the 16 bit CRC
specified in V.42 is
generated by the DCE in
the transmit direction and
checked by the DCE in the
receive direction.
nrzi_en
0 Disable NZRI
encoding and decoding.
<off> Determines the threshold,
in octets, above which the
DCE shall generate a flow
off signal.
<on> Determines the threshold,
in octets, below which the
DCE shall generate a flow
on signal.
Lucent Technologies Inc.
Values
Read Syntax command to
query the current values of the
+ESA sub-parameters
Test Syntax command to
obtain all supported values of
the +ESA sub-parameters
Transmit Flow Control
Thresholds. This command
allows the DTE to determine
the input buffer size in the
DCE for data on circuit 103
from the DTE, to control the
thresholds used for flow
control of such data.
The DCE shall transmit a
string of information to the
DTE consisting of : ITF: (list of
supported <off> values>),(list
of supported <on> values.
Data Addendum
June 15, 1998
Description
Version 1.0