EV6240 Datasheet, PDF (24/47 Pages) CML Microcircuits – Opto-Isolated serial interface capability

Evaluation Kit for CMX624/CMX644A
EV6240
@Rn?
@Rn=x
@Tn
@$
CMX6x4 Register Read
Command for displaying the contents of a CMX6x4 device register
Syntax: AT@Rn?<CR>
where n is the CMX6x4 register address (hexadecimal).
Value returned is in hexadecimal format.
CMX6x4 Register Write
Command for writing to a CMX6x4 device register.
Syntax: AT@Rn=x<CR>
where n is the CMX6x4 register address (hexadecimal) and x is the value to
be written (decimal, 0-255).
BER Measurement Set Up
Informs PIC which modem is transmitting and receiving during BER
measurement.
Syntax: AT@Tn<CR>
Modifier Usage
n=0 Selects Modem One Tx/Rx (default).
n=1 Selects Modem One Tx and Modem Two Rx.
n=2 Selects Modem Two Tx and Modem One Rx.
n=3 Selects Modem Two Tx/Rx.
CML Specific AT Command Online Help
Displays all CML Specific AT Commands
Syntax: AT@$<CR>
AT Command Summary
1) Commands must be typed in upper case.
2) The maximum command length is 32 characters, including the AT prefix but excluding the carriage return.
3) A user defined escape sequence (usually +++) is required to revert the modem from on-line (data transfer
mode) to the command mode, to allow the user to issue AT commands to the PIC.
4) Every command except for A/ and the escape sequence must begin with the AT prefix and be entered by
pressing a carriage return.
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© 1999 Consumer Microcircuits Limited
UM6240/3