Summary of Contents for XJTAG XJLink2-CFM
- Page 1 XJTAG ® XJLink2-CFM Hardware User Guide Version 1 XJTAG-XCFM-Guide-22K-02.1 enquiries@xjtag.com www.xjtag.com...
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Page 2: Table Of Contents
Figure 5. Location of Mechanical Cable Anchor Points................11 Table 1. Options for Software-Configurable Pins on J8 ................4 Table 2. XJLink2-CFM J12 Main Connector Pinout ..................6 Table 3. Recommended Signal Routing When Using all 18 Signals ............6 Table 4. Interface Logic Voltage Characteristics ..................7 XJTAG-XCFM-Guide-22K-02.1... -
Page 3: Introduction
To test multiple PCBAs simultaneously, additional XJLink2-CFM boards can be fitted into spare slots on the MFAB. This guide describes the XJLink2-CFM and how to connect it plus any extender boards to the MFAB. 2. Description of the XJLink2-CFM The XJLink2-CFM has 18 interface pins that can be independently configured in software to provide different functions. -
Page 4: Routing The Signals
The XJLink2-CFM connects to the MFAB via connector J12. A PC running XJTAG software needs to be connected to the XJLink2-CFM’s micro-USB socket, J2. Table 1 shows the options available for each of the 18 software-configurable pins on connector J8. - Page 5 J9 connector interfaces to the MFAB’s direct signal pins via relays. Figure 3 and Figure 4 show a setup using one XJLink2-CFM with three expander boards to utilise all of its 18 signals. Sixteen of the configurable signals are routed to direct signal pins and the remaining 2 are routed to the multiplexed signal pins of slot 2.
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Page 6: Recommended Signal Routing
CFM is used with three extender boards and a multi-section ribbon cable that has 6 connectors. Sixteen of the XJLink2-CFM’s signals are routed to the direct pins on the Teradyne MFAB, and the remaining two signals are connected to multiplexed pins. The XJLink2-CFM is placed in slot 2, with extender boards in the remaining three positions. -
Page 7: Powering The Board
7 – 18 V, nominal 12 V Current 500 mA max. 6. Configuring XJLink2-CFM Interface Voltages The 18 interface pins on the XJLink2-CFM are divided into two banks of nine. Each bank can operate at a different voltage level. Bank 1 XJLink pins 1 – 9 Bank 2 XJLink pins 11 –... -
Page 8: Configuring Output Pin Characteristics
Configuring Output Pin Characteristics The drive strength and slew rate of any pin being used as an output from the XJLink2-CFM can be configured to maintain high speed, high quality signals. Slew rate – each output pin can be given one of three slew rates to control the signal’s rise and fall times. -
Page 9: Specification
XJLink2-CFM . User Guide www.xjtag.com 8. Specification USB Interface USB 2.0 (480 Mbps), compatible with USB 1.1 The board is not powered over USB (voltage sense only) JTAG Signals 10 kHz to 166 MHz in steps of 0.05 MHz Frequency Measurements...