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Reporting selected options, Reporting supported options – Longshine LCS-8156C1 User Manual

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AT Commands for CX930xx Modem Reference Manual

102752B

Conexant

3-75

Specifies whether or not, in V.34 half-duplex operation,
additional procedures besides those specified in § 12/V.34
shall be performed by the modem when switching from
primary channel to secondary channel operation, and vice
versa. This subparameter should not be commanded.

Specifies the CRC polynomial used while operating in Framed
sub-Mode. The options are:

0

CRC generation and checking disabled (default).

1

In Framed sub-Mode, the 16-bit CRC is
generated by the modem in the transmit
direction, and checked by the modem in the
receive direction.

Specifies if Non Return to Zero Inverted (NRZI) encoding is
to be used by the modem for transmit and receive data. The
options are:

0

NZRI encoding and decoding disabled (default
and fixed).

,

Specifies the octet value(s) to be used while performing
character-oriented framing. is to be commanded to
255 (FFh); is not to be commanded.

Reporting Selected Options

The modem reports the selected options in response to the following command:

+ESA?

The response is:

+ESA: ,,,,
,,,

Example:

+ESA?

+ESA: 0,0,0, ,0,0,255,

For the defaults.

Reporting Supported Options

The modem reports the supported options in response to the following command:

+ESA=?

The response is:

+ESA: (list of supported values), (list of supported
values),(list of supported values), (list of supported
values),(list of supported values), (list of supported values),
(list of supported values), (list of supported values)

Example:

+ESA=?

+ESA: (0),(0),(0-1), ,(0-1),(0),(255),