NI cDAQ-9138/9139 Letter of Volatility
Contents
1. or modify the contents of the memory during normal instrument operation System Accessible Does not allow the user to access or modify the memory during normal instrument operation However system accessible memory may be accessed or modified by background processes This can be something that is not deliberate by the user and can be a background driver implementation such as storing application information in RAM to increase speed of use Cycle Power The process of completely removing power from the device and its components This process includes a complete shutdown of the PC and or chassis containing the device a reboot is not sufficient for the completion of this process Volatile Memory Requires power to maintain the stored information When power is removed from this memory its contents are lost Non Volatile Retains its contents when power is removed This type of memory typically contains calibration or chip configuration information such as power up states EDITION DATE January 2015 Contact 866 275 6964 NI PART NUMBER 375065A 01 support ni com2. NATIONAL INSTRUMENTS Board Assembly Part Number s Letter of Volatility Under Normal Use Conditions NI cDAQ 9138 NI cDAQ 9139 Part Number Description 153374F 01L or later cDAQ 9138 RT 153374F 02L or later cDAQ 9139 RT 153374F 11L or later cDAQ 9138 WES7 153374F 12L or later cDAQ 9139 WES7 Manufacturer National Instruments Volatile Memory User Accessible Battery Type Size System Accessible Backup _ Purpose Method of Clearing DDR3 SDRAM 2GB Yes Yes No System memory Cycle power RTC RAM 256 bytes Yes Yes Yes Battery backed portion of RTC CMOS Reset button Controller SRAM 54 KB Yes Yes No Acquisition and Generation Data Cycle power Controller SRAM 49 KB No Yes No Configuration amp Control Cycle power Non Volatile Memory User Accessible Battery Type Size System Accessible Backup _ Purpose Method of Clearing System BIOS 8 MB No Yes No BIOS firmware BIOS update utility SPD Flash 2 MB No No No Describes DDR3 memory None available to user Ethernet Flash 1 MB No No No Ethernet control firmware None available to user Controller Flash 1 MB No Yes No Firmware None available to user Riser Card SSD 32 GB Yes Yes No Operating System and Storage Format drive Calibration constants that are stored in device EEPROMs include information for the device s full operating range Calibration constants do not maintain any unique data for specific configurations at which the device is used unles
3. s otherwise specified N Items are designated No for the following reason s a Hardware changes or a unique software tool from National Instruments are required to modify contents of the memory listed b Hardware modifying software tools are not distributed to customers for any personal access or customization also known as non normal use w The designation None Available to User indicates that the ability to clear this memory is not available to the user under normal operation The utilities required to clear the memory are not distributed by National Instruments to customers for normal use EDITION DATE January 2015 NI PART NUMBER 375065A 01 Contact 866 275 6964 support ni com Letter of Volatility Under Normal Use Conditions SCRA n NI cDAQ 9138 NI cDAQ 9139 Media Storage User Accessible Battery Type Size System Accessible Backup Purpose Method of Clearin NONE Clearing Notes RTC RAM The CMOS Reset Button is located between slots 5 and 6 See the User Manual for more information on the CMOS Reset Button BIOS Firmware You may use the appropriate version of the BIOS Update Utility to restore your BIOS to its original factory version EDITION DATE January 2015 Contact 866 275 6964 NI PART NUMBER 375065A 01 support ni com NATIONAL Letter of Volatility Under Normal Use Conditions INSTRUMENTS NI cDAQ 9138 NI cDAQ 9139 Terms and Definitions User Accessible Allows the user to directly write
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