EV6240 Datasheet, PDF (20/47 Pages) CML Microcircuits – Opto-Isolated serial interface capability

Evaluation Kit for CMX624/CMX644A
EV6240
Fn
Hn
In
Qn
Sn?
Sn=x
Select Line Modulation
Selects the line modulation specified by the parameter n.
Syntax: ATFn<CR>
Modifier Usage
n=0 Selects the CMX624 for V.23 or Bell 202 line modulation (default).
n=1 Selects the CMX644A for V.22 or Bell 212A line modulation.
n=2 Reserved.
Switch Hook Control
Syntax: ATHn<CR>
Modifier Usage
n=0 Instructs the modem to go on-hook (disconnect).
n=1 Instructs the modem to go off-hook.
Identification
Requests the modem to return its product identification information.
Syntax: ATIn<CR>
Modifier Usage
n=0 Displays the firmware name and version number.
n=1 Displays Product Name.
n=2 Displays CML UK sales information.
n=3 Displays South East Asia sales information.
N=4 Displays NAFTA sales information.
Enable/Disable Modem Responses
Syntax: ATQn<CR>
Modifier Usage
n=0 Enables result codes to be issued to the screen (default).
n=1 Disables result codes to be issued to the screen
S-Register Read
Command for displaying the contents of an S-Register.
Syntax: AT@Sn?<CR>
where n is the S-Register to be interrogated (decimal).
Value returned will be in hexadecimal format.
S-Register Write
Command for writing to an S-Register. (See list of S-Registers later on)
Syntax: AT@Sn=x<CR>
where n is the S-Register (decimal) and x is the value to be written (decimal, 0-255).
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© 1999 Consumer Microcircuits Limited
UM6240/3