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| 型號： | SI2400-KS |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 24/94頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ISOMODEM SYSTEM-SIDE 16SOIC |
| 標準包裝： | 48 |
| 系列： | ISOmodem® |
| 數(shù)據(jù)格式： | V.21，V.22，V.23，Bell 103，Bell 212A |
| 波特率： | 2.4k |
| 電源電壓： | 3 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC N |
| 包裝： | 管件 |
| 配用： | 336-1166-ND - BOARD EVAL FOR SI2400 ISOMODEM |
| 其它名稱： | 336-1093 |
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Si2400
30
Rev. 1.3
6.3. AT Command Set Description
AAnswer
The “A” command makes the modem go off hook and
respond to an incoming call. This command is to be
executed after the Si2400 has indicated a ring has
occurred. (The Si2400 will indicate an incoming ring by
echoing an “R”.)
This command is aborted if any other character is
transmitted to the Si2400 before the answer process is
completed.
Auto answer mode is entered by setting S00 (NR) to a
non-zero value. NR indicates the number of rings before
answering the line.
Upon
answering,
the
modem
communicates
by
whatever protocol has been determined via the modem
control registers in S07 (MF1).
If no transmit carrier signal is received from the calling
modem within the time specified in S39 (CDT), the
modem hangs up and enters the idle state.
DDial
DT#
Tone Dial Number.
DP#
Pulse Dial Number.
The D commands make the modem dial a telephone
call according to the digits and dial modifiers in the dial
string following the command. A maximum of 64 digits is
allowed. A DT command performs tone dialing, and a
DP command performs pulse dialing.
The “ATS07=40DT;” command can be used to go off
hook without detecting dial tone or dialing.
The dial string must contain only the digits “0–9”, “*”, “#”,
“A”, “B”, “C”, “D”, or the modifiers “;”, “/”, or “,”. Other
characters will be interpreted incorrectly. The modifier
“,” causes a two second delay (added to the spacing
value in S04) in dialing. The modifier “/” causes a
125 ms delay (added to the spacing value in S04) in
dialing. The modifier “;” returns the device to command
mode after dialing and must be the last character.
If any character is received by the Si2400 between the
ATDT#<CR> (or ATDP#<CR>) command and when the
connection is made (“c” or “d” is echoed), the extra
character is interpreted as an abort, and the Si2400
returns to command mode, ready to accept AT
commands. A line feed character immediately following
the <CR> will be treated as an “extra character” and will
abort the call.
If the modem does not have to dial (i.e., “ATDT<CR>” or
“ATDP<CR>” with no dial string), the Si2400 assumes
the call was manually established and attempts to make
a connection.
The following may be used to perform a hook-flash:
ATDT;
ATH
ATDT#
The length of the flash is determined by how quickly the
commands are entered. No comma is necessary for the
second dial because ATS01 sets the number of
seconds before dialing. Set S07[6] (BD) for blind dial.
6.3.1. Automatic Tone/Pulse Dialing
The Si2400 can be set up to try DTMF dialing and
automatically revert to pulse dialing if it determines that
the line is not DTMF-capable. This feature is best
explained by the following example:
If it is desired that the telephone number 12345 be
dialed, it is normally accomplished through either the
ATDT12345 or the ATDP12345 command. In the force
pulse dialing mode of operation, the following string
should be issued instead:
ATDT1,p12345
If the result code returned is “t,”, it indicates that the
dialing was accomplished using DTMF dialing. If the
result code returned is “tt,”, it indicates that the dialing
was accomplished using pulse dialing.
In the above example, the Si2400 dials the first digit “1”
using DTMF dialing. The “,” is used to pause in order to
ensure that the central office has had time to accept the
DTMF digit “1”. When the Si2400 processes the “p”
command, it attempts to detect a dial tone. If a dial tone
is detected, the DTMF digit “1” was not effective, hence
the line does not support DTMF dialing. Conversely, if
the dial tone is not detected, the DTMF digit “1” was
effective, and the line does support DTMF dialing. The
character after the “p” may or may not be dialed,
depending on whether the DTMF digit “1” was effective
or not. If the “1” was effective (DTMF mode), the
character after the “p” is skipped. The next DTMF digit
to be dialed is “2”. Subsequent digits are all DTMF. If the
“1” was not effective, the first character after the “p” (the
“1”) is pulse dialed, and subsequent digits are all pulse
dialed.
E
Command Mode Echo
Tells the Si2400 whether or not to echo characters sent
from the terminal.
EO
Does not echo characters sent from the terminal.
E1
Echo characters sent from the terminal.
H
Hangup
Hang up and go into command mode (go offline).
I
Chip Identification
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VE-24W-IX-F4 | CONVERTER MOD DC/DC 5.5V 75W |
| VE-24W-IX-F3 | CONVERTER MOD DC/DC 5.5V 75W |
| VE-24W-IX-F2 | CONVERTER MOD DC/DC 5.5V 75W |
| VE-240-IX-F4 | CONVERTER MOD DC/DC 5V 75W |
| VE-240-IX-F3 | CONVERTER MOD DC/DC 5V 75W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI2400-KSR | 功能描述:電信線路管理 IC 2400b/s System Side RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| SI2400URT-EVB | 功能描述:開發(fā)板和工具包 - 無線 SI2400 RoHS:否 制造商:Arduino 產(chǎn)品:Evaluation Boards 工具用于評估:AT32UC3L 核心:AVR32 頻率: 接口類型:USB 工作電源電壓:5 V |
| SI2401 | 制造商:SILABS 制造商全稱:SILABS 功能描述:V.22BIS ISOMODEM㈢ WITH LOW-COST DAA |
| SI2401-C-FS | 制造商:Silicon Laboratories Inc 功能描述: |
| SI2401DC-EVB | 功能描述:子卡和OEM板 SI2401 Daughter Card RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
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