EV8680 datasheet(17/39 Pages) CMLMICRO

17 / 39 page

Evaluation Kit for CMX868

EV8680

UM8680/2

Sn?

S-Register Read

Command for displaying the contents of an S-Register (See S-Register Table).

Syntax: ATSn?<CR>

where n is the S-Register to be interrogated (decimal).

Value returned is either in decimal (default) or hex format depending on the setting

of Bit 4 in the S14 register.

Sn=x

S-Register Write

Command for writing to an S-Register (See S-Register Table).

Syntax: ATSn=x<CR>

where n is the S-Register (decimal) and x is the value to be written (decimal, 0-

255).

Result Code Format

Syntax: ATVn<CR>

Modifier Usage

n=0 Instructs the modem to display result codes as numbers.

n=1 Instructs the modem to display result codes as words (default).

Calling Characteristics

Determines which set of responses and calling characteristics are used.

Syntax: ATXn<CR>

Modifier Usage

n=0 The modem will ignore dial tones and busy tones. Dial tone wait time is zero,

and blind dialling is enabled. The modem returns a CONNECT result code when a

connection is established.

n=1 The modem will ignore dial tones and busy tones. Dial tone wait time is zero,

and blind dialling is enabled. The modem returns a CONNECT xxxx result code

when a connection is established, where xxxx is the Tx/Rx line speed (default).

n=2 The modem will ignore busy tones, but waits for a dial tone before dialling. If a

dial tone is not detected within 5 seconds, a NO DIAL TONE result code is

returned. The modem returns a CONNECT xxxx result code when a connection is

established, where xxxx is the Tx/Rx line speed.

n=3 The modem will ignore dial tones. If a busy tone is detected, a BUSY result

code is returned. Blind dialling is enabled. The modem returns a CONNECT xxxx

result code when a connection is established, where xxxx is the Tx/Rx line speed.

n=4 If a dial tone is not detected within 5 seconds, a NO DIAL TONE result code is

returned. If a busy tone is detected, a BUSY result code is returned. The modem

returns a CONNECT xxxx result code when a connection is established, where

xxxx is the Tx/Rx line speed.

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