- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄16381 > SI2400URT-EVB (Silicon Laboratories Inc)BOARD EVAL FOR SI2400 ISOMODEM PDF資料下載
參數(shù)資料
| 型號： | SI2400URT-EVB |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 20/94頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR SI2400 ISOMODEM |
| 標準包裝： | 1 |
| 系列： | ISOmodem® |
| 主要目的： | 電信，調制解調器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | SI2400 |
| 主要屬性： | 雙路 RJ-11 連接至電話線路，音頻連接器 |
| 次要屬性： | RS-232，TTL 串行和 USB 接口 |
| 已供物品： | 板，調制解調器，電源 |
| 相關產(chǎn)品： | SI2400-BS-ND - IC ISOMODEM SYSTEM-SIDE 16SOIC SI2400-FS-ND - IC ISOMODEM SYST-SIDE DAA 16SOIC 336-1093-ND - IC ISOMODEM SYSTEM-SIDE 16SOIC |
| 其它名稱： | 336-1166 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁當前第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁
Si2400
Rev. 1.3
27
checksum does not match, the Si2400 echoes “e” (error).
Additionally, if the Si2400 detects an abort (seven or more
contiguous ones), then it will echo an “A”.
When the “G”, “e”, or “A” (referred to as a frame result
word) is sent, the Si2400 raises the EOFR (end of frame
receive) pin (see Figure 10B). The GPIO1 pin must be
configured as EOFR by setting SE4[3] (GPE) =
1b. In
addition to using the EOFR pin to indicate that the byte is a
frame result word, if in 9-bit data mode (set S15[0] (NBE) =
1b), the ninth bit will be raised if the byte is a frame result
word. To program this mode, set S0C[3] (9BF) =
1b and
SE0[3] (ND) =
1b.
3. When the next frame of data is detected, EOFR is lowered
and the process repeats at step 1.
To summarize, the host will begin receiving data
asynchronously from the Si2400. When each byte is
received, the host should check the EOFR pin (or the
ninth bit). If the EOFR pin (or the ninth bit) is low, then
the data is valid frame data. If the EOFR pin (or the
ninth bit) is high, then the data is a frame result word.
5.15. Fast Connect
In modem applications that require fast connection
times, it is possible to reduce the length of the
handshake.
If the Si2400 is set up as an answering modem, the
answer tone transmitted by the Si2400 may be
shortened by setting S1E (TATL) = 0x00 and setting
S34 (TASL) to the desired answer tone length. For the
most robust operation, it is recommended that the
answer tone sent by the answering modem be at least
10 msec (S34 (TASL) = 0x06).
If the Si2400 is configured as an originating modem,
setting the No Answer Tone bit (S33[1] [NAT] = 1b)
forces the Si2400 to recognize a short answer tone,
thereby reducing the overall connection sequence.
Additional modem handshaking control can be adjusted
through
the
registers
shown
in
These
registers are most useful if the user has control of both
the originating and answer modems.
Figure 11. HDLC Timing
B. Fram e Receive
A. Fram e Transm it
TXD
RX D
Start
Stop
Start
Host begins frame N
Frame N
Start
Stop
Host finished sending frame N
Host begins frame N + 1
CTS
Frame N + 1
C RC Byte 2
Stop
Start
Stop
Receive Data
EO FR
(or bit 9)
Si2400 ready for byte 1 of frame N
Note: Figure not to scale.
(CTS used as normal flow control.)
Si2400 detects end of frame N.
Si2400 ready for byte 1
of frame N + 1.
CRC Byte 1
Frame Result W ord
相關PDF資料 |
PDF描述 |
|---|---|
| CM322522-1R8JL | INDUCTOR CHIP 1.8UH 3225 SMD |
| 496837-000 | CABLE TERMINATION RG/U 178,404 |
| VI-J72-EX | CONVERTER MOD DC/DC 15V 75W |
| 6374615-8 | C/A LC-SC DUP 62.5/125, 8M |
| VE-B12-EY-S | CONVERTER MOD DC/DC 15V 50W |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| SI2401-FS | 功能描述:電信線路管理 IC 2400b/s System Side 3rd Gen DAA Tech 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 |
| Si2401FS08-EVB | 功能描述:網(wǎng)絡開發(fā)工具 Si2401+Si3008 ISO modem Eval Board RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
發(fā)布緊急采購，3分鐘左右您將得到回復。