Maxim-integrated Teridian V.22 bis Linux Softmodem for 73M1822/73M1 Manual de usuario descargar pdf (Pagina 38)

V.22 bis Linux Softmodem for 73M1x22 MicroDAA User Guide UG_1x22_043

38 Rev. 1.5

S25 Protocol Selection



No protocol detection selected. Modem looks for ODP/ADP on connection.

This is used when the host does not do the initial protocol detection.

Bit 0 1 Disconnect if no protocol is detected

Bit 1 1

V42-LAPM protocol selected. This option enables the ODP/ADP

sequence detection support within the TSC Softmodem if not

supported by the host processor.

When a connection is made and the selected protocol is detected an appropriate result

code is returned:

PROTOCOL: NONE or ‘70’

PROTOCOL: LAPM or ‘77’

If 1.5 seconds after CARRIER is established, and no protocol is detected,

PROTOCOL:

NONE or result code ‘70’ will be sent.

S79 FSK Originate Carrier Detect Level

n 1 – 96



35 -45dBm threshold.

S79 determines at what minimum level carrier is detected for originating FSK. A larger

number corresponds to a lower signal level threshold.

S80 FSK Answer Carrier Detect Level

n 1 – 96



35 -45dBm threshold.

S80 determines at what minimum level carrier

is detected for answering FSK. A larger

number corresponds to a lower signal level threshold.

S81 PSK Originate Carrier Detect Level

n 1 – 96



40 -45dBm threshold.

S81 determines at what minimum level carrier is detected for originating PSK. A larger

number corresponds to a lower signal level threshold.

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Maxim-integrated Teridian V.22 bis Linux Softmodem for 73M1822/73M1 Manual de usuario Pagina 38