参数资料
| 型号： | DS21349DK |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/14页 |
| 文件大小： | 0K |
| 描述： | KIT DESIGN FOR DS21349 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 电信，线路接口单元（LIU） |
| 已用 IC / 零件： | DS21349 |
| 已供物品： | 板 |
DS2149DK/DS21349DK T1/J1 Line Interface Unit Design Kit
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
RPOS
TPOS
RNEG
TNEG
RCLK
TCLK
MCLK
VDD
CS
SCLK
SDI
SDO
GND
GND
GND
RELAY_CONTROL
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,
www.maxim-ic.com/telecom .) After installation, run the DEMOVIEW.EXE program with the
DS2149DK/DS21349DK board powered up and connected to the PC. In the opening screen, click the REGVIEW
button. Select the correct serial port in the Port Selection dialog box, then click OK. To configure DEMOVIEW to
support the DS2149DK/DS21349DK, open the File pulldown menu and select Definition File. In the Choose
Definition File dialog box, select DS2149DK.DEF and click Open.
After selecting the definition file, the main part of the REGVIEW window displays the DS2149’s memory map. To
select a register, click on it in the register map. When a register is selected, the full name of the register and its bit
map are displayed at the bottom of the REGVIEW window. Bits that are logic 0 are displayed in white, while bits
that are logic 1 are displayed in green.
The DemoView software supports the following actions:
§ Toggle a bit. Select the register in the register map and then click the bit in the bit map.
§ Write a register. Select the register, click the Write button, and enter the value to be written.
§ Write all registers. Click the Write All button and enter the value to be written.
§ Read a register. Select the register in the register map and click the Read button.
§ Read all registers. Click the Read All button.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS21349Q | 功能描述:网络控制器与处理器 IC 3.3V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装: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:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS21349Q+ | 功能描述:网络控制器与处理器 IC 3.3V E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
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