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DS3154 Demo Kit
SYSTEM CONNECTOR
The 50-pin system connector at the top of the board gives access to the following DS3154 signals: STMCLK,
RCLKn, RPOSn/RDATn, RNEG/RLCVn, TCLKn, TPOSn/TDATn, and TNEGn. The system connector can be used
to connect the DS3154 to an external DS3/E3 framer or other data source/sink. By using jumpers to connect
TCLKn to RCLKn, TPOSn to RPOSn, and TNEGn to RNEGn, the system connector can also be used to implement
an external remote loopback. In addition, it can be used to wire DS3154 input pins like TPOSn and TNEGn low. To
wire a pin low, use a jumper to connect it to the neighboring GND pin on the upper row of the system connector.
MICROCONTROLLER, SWITCHES, AND LEDS
The DS87C520 microcontroller has factory-installed firmware in on-chip nonvolatile memory. This firmware
translates memory access requests from the RS-232 serial port into register accesses on the DS3154. Switches
SW1 through SW4 and LEDs DS7, DS11, DS19, and DS20 are connected to four general-purpose I/O pins on the
microcontroller. When the microcontroller starts up it turns on DS20 and leaves DS7, DS11, and DS19 off to
indicate that the controller is working correctly. Otherwise, these switches and LEDs are not used by the
DS3154DK firmware.
POWER-SUPPLY CONNECTORS
Connect a 3.3V power supply across the red J12 (DK V DD ) and black J13 (GND) banana jacks. Connect a separate
supply to the red J14 (3154 V DD ) and black J13 (GND). Jumpers (JMP11–JMP14) are provided to measure the
device’s current and can be used instead of J14. The supplies (V DD and V3_3) have been separated from what is
shown in the schematic (page 4, Section D-3) because switching power-supply noise is affecting generated jitter on
the DS3154. The supplies should not be wired together for any jitter peformance measurements.
CONNECTING TO A COMPUTER
Connect a standard DB-9 serial cable between the serial port on the DS3154DK and an available serial port on the
?
through cable rather than a null-modem cable. Null-modem cables prevent proper operation.
INSTALLING AND RUNNING THE SOFTWARE
ChipView is a general-purpose program that supports a number of Dallas Semiconductor demo kits. To install the
ChipView software, run SETUP.EXE from the disk included in the DS3154DK box or from the zip file downloadable
on our website at www.maxim-ic.com/DS3154DK .
After installation, run the ChipView program with the DS3154DK board powered up and connected to the PC. If the
default installation options were used, one easy way to run ChipView is to click the Start button on the Windows
toolbar and select Programs ? ChipView ? ChipView. In the opening screen, click the Register View button. (The
Demo and Terminal buttons are not supported for the DS3154DK.) Select the correct serial port in the Port
Selection dialog box, then click OK.
Next, the Definition File Assignment window appears. This window has subwindows to select definition files for up
to four separate boards on other Dallas evaluation platforms. Because ChipView is communicating with the
DS3154DK, only one subwindow is active. In the active subwindow, select the DS3154.DEF definition file from the
list shown, or browse to find it in another directory. Press the Continue button.
After selecting the definition file, the main part of the ChipView window displays the DS3154’s register map. The
registers in LIU1 are displayed in the left column followed by registers for the other LIUs in subsequent columns. 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 ChipView window. Bits that are logic 0 are displayed in white, while bits that
are logic 1 are displayed in green.
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相关代理商/技术参数
DS3154N
功能描述:网络控制器与处理器 IC Quad DS3/E3/STS-1 Line Interface Unit 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
DS3154N#
功能描述:网络控制器与处理器 IC Quad DS3/E3/STS-1 Line Interface Unit 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
DS3154N+
功能描述:网络控制器与处理器 IC Quad DS3/E3/STS-1 Line Interface Unit 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
DS3154NA2
功能描述:网络控制器与处理器 IC Quad DS3/E3/STS-1 Line Interface Unit 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
DS3154NB1
制造商:Maxim Integrated Products 功能描述:DS3154B QUAD DS3/E3 LIU IND - Rail/Tube 制造商:Maxim Integrated Products 功能描述:DS3/E3/STS-1 LIUS
DS3154NCA2
制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
DS315AL
制造商:Hubbell Wiring Device-Kellems 功能描述:SWITCH, DECO SER, 3W, 15A 120/277V, AL
DS315BK
制造商:Hubbell Wiring Device-Kellems 功能描述:SWITCH, DECO SER, 3W, 15A 120/277V, BK