EV6240 Datasheet, PDF (23/47 Pages) CML Microcircuits – Opto-Isolated serial interface capability

Evaluation Kit for CMX624/CMX644A
CML Specific AT Commands
Command
Description
@Bn
Ring Detection
Instructs PIC to detect BT or Bell ringing on a modem’s Ring Detect Line.
Syntax: AT@Bn<CR>
Modifier Usage
n=0 BT ring detection (default).
n=1 Bell ring detection.
@En
Evaluation Mode
Informs PIC which mode we will be operating in.
Syntax: AT@En<CR>
Modifier Usage
n=0 Selects Modem Mode (default).
n=1 Selects Test Mode.
@Fn
Test Functions
Syntax: AT@Fn<CR>
Modifier Usage
n=0 Return the status of the following digital inputs:-
IRQN1 (Bit 0), LV1 (Bit 1), IRQN2 (Bit 4), and LV2 (Bit 5).
n=1 BER measurement. (Not available in the current firmware revision).
n=2 BER Test points (Returns status of input and sets outputs high).
n=3 BER Test points (Returns status of input and sets outputs low).
n=4 CD LED On.
n=5 CD LED Off.
n=6 Simulate Ring Burst.
n=7 Simulate Ring Silence.
@Mn
Modem Focus
Informs PIC which modem should have the AT Command focus. All
subsequent AT Commands are directed at the modem with the focus.
Syntax: AT@Mn<CR>
Modifier Usage
n=0 Directs all subsequent AT Commands to Modem One (default).
n=1 Directs all subsequent AT Commands to Modem Two.
@RR
CMX6x4 Device Reset
Resets the CMX6x4 device for the modem with focus.
Syntax: AT@RR<CR>
EV6240
23
© 1999 Consumer Microcircuits Limited
UM6240/3