ML7012-06 Просмотр технического описания (PDF) - LAPIS Semiconductor Co., Ltd.

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ML7012-06

2400 bps Single Chip Full Duplex Data Modem with Protocol

LAPIS Semiconductor Co., Ltd. 

FEDL7012-06-02

ML7012-06

CMD

Q

S

T

V

X

Z

&C

&D

&G

&P

&T

%E

Style

ATQn

ATSr

ATSr?

ATSr=d

ATT

ATVn

ATXn

ATZ

AT&Cn

AT&Dn

AT&Gn

AT&Pn

AT&Tn

AT%En

Function

Initial Value

Selects the result code transmission.

n=0: Result code is transmitted.

0

n=1: Result code is not transmitted.

Sets the pointer value for S register to “r”.

—

Echoes back the contents of S register specified by “r”.

—

Sets the content of S register specified by “r” to “d’.

—

Sets dialing mode to DTMF.

—

Selects the type of result code.

n=0: Number

1

n=1: Characters

Selects the extended result code and call progress tone detection.

n

01234

Function

Result Code

o o o o o Line connection 300 bps CONNECT

— o o o o Line connection 1200 bps CONNECT 1200

4

— o o o o Line connection 2400 bps CONNECT 2400

—— o — o

Dial tone detection NO DIAL TONE

— — — o o Busy tone detection

BUSY

Reset in the same way the PDN/RST pin is set to “0”.

—

Controls data carrier detection signals (DCD).

n=0: Always sets DCD to ON.

0

n=1: Controls DCD by detecting reception carriers.

Controls the modem dependent upon DTR signal state.

n=0: Ignores DTR signals.

n=1: Ignores DTR signals but goes to on-line command mode when the

change of DTR from ON to OFF is detected during data mode.

2

n=2, and 3:Terminates the call and goes to command mode when the

change of DTR from ON to OFF is detected during data mode.

Sets the guard tone transmission.

n=0: No guard tone

n=1: With guard tone of 550 Hz

0

n=2: With guard tone of 1800 Hz

Sets the make ratio of pulse dialing.

n=0: 39% (10pps)

n=1: 33% (10pps)

1

n=2: 33% (20pps)

Controls the loop back test mode.

n=0: Ceases test mode

n=1: Starts local analog loop back test (ALB)

n=2 or 3: None

n=4: Responds to the RDL test request

—

n=5: Does not respond to the RDL test request

n=6: Starts remote digital loop back test (RDL)

n=7: Starts RDL self-diagnostic test.

n=8: Starts ALB self-diagnostic test.

Selects automatic re-training function due to poor incoming conditions of

the receive section.

n=0: Automatic re-training is disabled.

1

n=1: Automatic re-training is enabled.

Note

12/23

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