Related Manuals for Octagon Systems XBLOK 2 MB SRAM
Summary of Contents for Octagon Systems XBLOK 2 MB SRAM
- Page 1 X–SRAM–2M Reference Manual 2 MB SRAM XBLOK ™ Document #6968, rev. A05 CONTACT INFORMATION Front Desk: 303–430–1500 Technical Support: 303–426–4521 FastHelp@octagonsystems.com www.octagonsystems.com...
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Page 2: Technical Support
Disclaimer Copyright 2005—Octagon Systems Corporation. All rights reserved. However, any part of this document may be reproduced, provided that Octagon Systems Corporation is cited as the source. The contents of this manual and the specifications herein may change without notice. -
Page 3: Using Cmos Circuitry In Industrial Control
IMPORTANT! Please read the following section before installing your product: Octagon’s products are designed to be high in performance while consuming very little power. In order to maintain this advantage, CMOS circuitry is used. CMOS chips have specific needs and some special requirements that the user must be aware of. - Page 4 Under rated power supply: The board may fail to boot due to an under rated power supply. It is important that a quality power supply be used with Octagon Systems cards that has sufficient current capacity, line and load regulation, hold up time, current limiting, and minimum ripple.
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Page 5: Table Of Contents
Table of Contents Technical Support........................2 Revision History ........................2 Using CMOS circuitry in industrial control................3 Table of Contents.........................5 List of Figures ..........................6 List of Tables..........................6 Chapter 1: Overview ........................7 Description ..........................7 XBLOK form factor........................7 Power requirements ........................ 8 Rugged environmental operation ................... -
Page 6: List Of Figures
List of Figures Figure 2–1 X–SRAM–2M component diagram..............11 Figure 2–2 X–SRAM–2M dimensions – inches (thousandths) and millimeters ....11 Figure 2–3 Typical XBLOK module stack ................12 List of Tables Table 2–1 X–SRAM–2M base address switch settings ............9 Table 3–1 X–SRAM–2M register descriptions..............14 Table A–1 X–SRAM–2M base address switch settings ............16 Table A–2... -
Page 7: Chapter 1: Overview
Chapter 1: Overview Description The XBLOK 2 MB SRAM Expansion Card (Model X–SRAM–2M) provides 2 MB of battery-backed SRAM. The X–SRAM–2M allows full-speed reading and writing of data in critical applications where flash, hard drive or other mass storage devices are too slow. -
Page 8: Power Requirements
Power requirements The X–SRAM–2M operates on +5V, drawn from the PC/104 connector. It draws up to 9.65 mA when operating from +5V. The Lithium battery provides backup power for power failures. Rugged environmental operation Operating temperature –40° to 85°C Nonoperating temperature –55°... -
Page 9: Chapter 2: Installation
Chapter 2: Installation The X–SRAM–2M connects directly to a PC/104 connector. Before installing it on a PC/104 stack, set the base address switches and connect the battery (see following sections). WARNING! The X–SRAM–2M card contains static-sensitive CMOS components. The card is most susceptible to damage when it is plugged into another card. -
Page 10: Connecting The At Battery
Connecting the AT battery Connect the AT battery to connector J4. The connectors are keyed to ensure that it is connected properly. The battery life is dependent upon the amount it is used. If the battery is constantly on (no external power), it will last approximately 1 ½ years; if external power is always available the life is approximately 12 years. -
Page 11: Component Locations And Dimensions
Component locations and dimensions 2–1 X–SRAM–2M 2–2 X– Figure shows the component diagram. Figures shows the SRAM–2M dimensions, in inches and millimeters. Figure 2–1 X–SRAM–2M component diagram Figure 2–2 X–SRAM–2M dimensions – inches (thousandths) and millimeters... -
Page 12: Hardware Installation
Hardware installation The PC/104 and PC/104-Plus connectors allow you to interface expansion modules to form a highly-integrated control system. The X–SRAM–2M plugs into any card that meets the PC/104 form factor (see figure 2–1). An XBLOK card using the PC/104-Plus connector can be installed on the same level as the X–SRAM–2M. -
Page 13: Chapter 3: Using Sram
READ operations. The register descriptions are shown in the table below. OS driver support The Octagon Systems Products, Manuals, and Catalog CD contains drivers for DOS and Linux. Refer to the readme.txt file on the CD. Power The X–SRAM–2M operates on +5V, drawn from the PC/104 connector. -
Page 14: Power-Monitoring Bits
Table 3–1 X–SRAM–2M register descriptions I/O Address Direction Description Write low byte of MEM_READ_PTR Write 2 byte of MEM_ READ _PTR Write high byte of MEM_ READ _PTR Read to enable MEM_ READ _PTR Write low byte of MEM_WRITE_PTR Write 2 byte of MEM_WRITE_PTR Write high byte of MEM_WRITE_PTR Write “Don’t Care”, to enable MEM_WRITE_PTR... - Page 15 o 184 5A o 185 00 o 186 00 2. Write any value to enable the Memory Write Pointer. o 187 27 3. Write the data to be stored in the register location specified by the Memory Write Pointer (in this example, in location 00005A). o 188 AB 4.
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Page 16: Appendix A: Technical Specifications
Appendix A: Technical specifications Power requirements 5V +/-5%, 9.65 mA maximum. Power drawn from PC/104 connector. On-board Lithium battery provides standby power. Mounting connector Connects to PC/104 8-bit bus width SRAM 2 MB battery-backed SRAM Environmental specifications –40° to 85° C operating –55°... -
Page 17: Connector Pinouts
Connector pinouts Table A–2 J2 – PC/104 connector Some signals on the X–SRAM–2M are not or do not match the PC/104 specification. In those instances, the signals are shown below in gray boxes. The PC/104 specified signal is listed first, and the X–SRAM–2M signal follows. J2 –... -
Page 18: Warranty
Warranty Octagon Systems Corporation (Octagon), warrants that its standard hardware products will be free from defects in materials and workmanship under normal use and service for the current established warranty period. Octagon’s obligation under this warranty shall not arise until Buyer returns the defective product, freight prepaid to Octagon’s facility or another specified... -
Page 19: Returns
3. Tech Support will forward this information to the RMA Administrator who will contact the customer to issue the RMA number. 4. The customer must carefully package the product in an antistatic container. Failure to package in antistatic packaging will VOID all warranties. Then package in a safe container for shipping.
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