參數(shù)資料
型號(hào)： DS21349DK
英文描述： T1/J1 Line Interface Unit Design Kit
中文描述： T1/J1線路接口單元開發(fā)板
文件頁(yè)數(shù)： 5/14頁(yè)
文件大小： 501K
代理商： DS21349DK
DS2149DK/DS21349DK T1/J1 Line Interface Unit Design Kit
5 of 14
SYSTEM CONNECTOR
A 16-pin system connector at the top of the board gives access to the following signals: RPOS, TPOS, RNEG,
TNEG, RCLK_CON, TCLK, MCLK, V
DD
, GND, CS, SCLK, SDI, and RELAY_CONTROL. By using jumpers to
connect TCLK to RCLK_CON, TPOS to RPOS, and TNEG to RNEG, the system connector can also be used to
implement an external remote loopback. Additionally, the system connector can read and write to the device
without going through the on-board microcontroller. With this feature, you can quickly use this design kit as a
working prototype and begin writing firmware for your system.
Figure 3
shows a representation of the system
connector.
Figure 3. System Connector
POWER-SUPPLY CONNECTORS
Connect a 5.0V power supply across the red (VDD) and black (GND) banana jacks. The red PWR LED indicates
power is applied to the board. Select the appropriate voltage that needs to be applied to VDD from the power
switch below the PWR LED, depending if you are using a DS2149 (5V) or DS21349 (3.3V).
MICROCONTROLER AND SERIAL CONNECTOR
The DS2149DK/DS21349DK contains an on-board 8051 microcontroller with factory-installed firmware loaded into
the microcontroller’s EPROM. This firmware translates memory access requests from the RS-232 serial port into
register access to the DS2149 or DS21349 in software mode. DemoView, a software application created by Dallas
Semiconductor, allows easy read-write access for this device.
INSTALLING AND RUNNING THE SOFTWARE
DemoView is a general-purpose program that supports several Dallas Semiconductor design kits. To install the
DemoView software, run SETUP.EXE from the DemoView.ZIP file. (Download DemoView.ZIP from our website,
.)
button. Select the correct serial port in the Port Selection dialog box, then click OK. To configure DEMOVIEW to
相關(guān)PDF資料
PDF描述
DS2149DK T1/J1 Line Interface Unit Design Kit
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21349Q 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21349Q/T&R+ 制造商:Maxim Integrated Products 功能描述:FRAMER J1/T1 3.3V 28PLCC - Tape and Reel
DS21349Q/T&R 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21349Q+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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