About the Battery | Motorola MVME162 guide

Functional Description	1

Caution

For proper operation of the SRAM, some jumper combination must be installed on the Backup Power Source Select Header (J20). If one of the jumpers is used to select the battery, the battery must be installed on the MVME162. The SRAM may malfunction if inputs to the DS1210S are left unconnected.

The SRAM is controlled by the MCchip, and the access time is programmable. Refer to the MCchip description in the MVME162 Embedded Controller Programmer’s Reference Guide for more detail.

About the Battery

The power source for the onboard SRAM is a RAYOVAC FB1225 battery with two BR1225 type lithium cells which is socketed for easy removal and replacement. A small capacitor is provided to allow the battery to be quickly replaced without data loss.

The lifetime of the battery is very dependent on the ambient temperature of the board and the power-on duty cycle. The lithium battery supplied on the MVME162 should provide at least two years of backup time with the board powered off and with an ambient temperature of 40° C. If the power-on duty cycle is 50% (the board is powered on half of the time), the battery lifetime is four years. At lower ambient temperatures the backup time is greatly extended and may approach the shelf life of the battery.

When a board is stored, the battery should be disconnected to prolong battery life. This is especially important at high ambient temperatures. The MVME162 is shipped with the batteries disconnected (i.e., with VMEbus +5V standby voltage selected as both primary and secondary power source). If you intend to use the battery as a power source, whether primary or secondary, it is necessary to reconfigure the jumpers on J20 before installing the module. Refer to SRAM Backup Power Source Select Header J20 in Chapter 2 for available jumper configurations.

The power leads from the battery are exposed on the solder side of the board, therefore the board should not be placed on a conductive surface or stored in a conductive bag unless the battery is removed.

MVME162IG/D2

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Motorola MVME162 manual About the Battery

Contents

MVME162IG/D2 MVME162 Restricted Rights Legend Preface Page Safety Summary Safety Depends On You Page Overview Introduction Document Title Motorola Publication Number Related Documentation Introduction MVME162 Embedded Controller Installation Guide Requirements Features MVME162 Specifications SpecificationsCharacteristics Specifications Special Considerations for Elevated Temperature Operation Manual Terminology MVME162 Block Diagram Block Diagram Functional Description Front Panel Switches and Indicators MC68xx040 Cache Data Bus StructureMC68040 or MC68LC040 MPU No-VMEbus-Interface Option Dram Options Memory OptionsSram Options About the Battery Eprom and Flash Battery Backed Up RAM and Clock MVME162 Serial Port VMEbus Interface and VMEchip2Interfaces Serial Communications Interface MVME162 Serial Port Optional LAN Ethernet Interface IndustryPack IP Interfaces Scsi Termination Optional Scsi Interface Local Resources Programmable Tick TimersWatchdog Timer Local Bus Timeout Local Bus Arbitration Priority ConnectorsMemory Maps Local Bus Arbiter Normal Address Range Local Bus Memory MapLocal Bus Memory Map MVME162 Embedded Controller Installation Guide Address Range Device Port Width Size Local Bus I/O Devices Memory Map MVME162 Embedded Controller Installation Guide VMEbus Memory Map VMEbus Accesses to the Local BusVMEbus Short I/O Memory Map Board Level Hardware Description Hardware Preparation Unpacking Instructions SIM Selection Hardware Preparation Serial Interface Module Part Numbers Configuration Part Number Model Standard System Controller Select Header J1 Installation of New SIM J12 Clock Select Header J12 for Serial Port Eprom Size Select Header J21 Sram Battery Backup Source Select Header J20 J22 General Purpose Readable Jumpers Header J22 IP Installation on the MVME162 Installation Instructions MVME162 Module Installation System Considerations MVME162 Embedded Controller Installation Guide MVME162 EIA-232-D Connection Diagram, MVME712M Sheet 1 MVME162 EIA-232-D Connection Diagram, MVME712M Sheet 2 MVME162 EIA-232-D Connection Diagram, MVME712M Sheet 3 MVME162 EIA-232-D Connection Diagram, MVME712M Sheet 4 MVME162 EIA-232-D Connection Diagram, MVME712M Sheet 5 MVME162 EIA-232-D Connection Diagram, MVME712M Sheet 6 SIM07 MVME162 EIA-530 Connection Diagram Sheet 1 Hardware Preparation and Installation MVME162 EIA-530 Connection Diagram Sheet 2 MVME162 EIA-232-D Connection Diagram, MVME712A/AM/-12/-13 Sheet 1 MVME162 EIA-23-D Connection Diagram, MVME712A/AM/-12/-13 Sheet 2 MVME162 EIA-232-D Connection Diagram, MVME712A/AM/-12/-13 Sheet 3 MVME162 EIA-232-D Connection Diagram, MVME712A/AM/-12/-13 Sheet 4 Hardware Preparation and Installation Description of 162Bug Overview of M68000 Firmware MVME162 Embedded Controller Installation Guide 162Bug Implementation Installation and Startup Debugger General Information Bit J22 Pins Description Ote Autoboot ROMboot Restarting the System Network Boot Abort ResetBreak SYSFAIL* Assertion/Negation Memory RequirementsMPU Clock Speed Calculation Terminal Input/Output Control DEL Blocks Versus Sectors Disk I/O Support IOP Physical I/O to Disk Disk I/O via 162Bug CommandsDevice Probe Function IOI Input/Output Inquiry IOC I/O Control BO Bootstrap Operating SystemBH Bootstrap and Halt Disk I/O via 162Bug System Calls Default 162Bug Controller and Device Parameters UDP/IP Protocol Modules Disk I/O Error CodesNetwork I/O Support Intel 82596 LAN Coprocessor Ethernet Driver RARP/ARP Protocol Modules Bootp Protocol ModuleNetwork Boot Control Module Network I/O Error Codes Multiprocessor Control Register Mpcr Method Multiprocessor Support Mpar Gcsr Method Diagnostic Facilities Manufacturing Test Process Debugger Entering Debugger Command Lines Italic strings Syntactic Variables Data Type Base Identifier Examples Expression as a ParameterString Numeric Value Literal Hexadecimal Address Formats Address as a ParameterExpression Result In Hex Format Example Description Debugger Address Parameter Formats Relative addresses are limited to 1MB 5 digits, regardless Offset RegistersRange of the closest offset register 162BugMD 1327CDI Port Numbers Calling System Utilities from User Programs Entering and Debugging ProgramsPreserving the Debugger Operating Environment Hardware Functions 162Bug Vector Table and Workspace Exception Vectors Used by 162Bug Exception Vectors Used by 162BugVector Exception 162Bug Facility Offset Using 162Bug Target Vector Table Creating a New Vector Table Buildx MOVEC.L VBR,A0 162Bug Generalized Exception Handler 162BugMD A7&30 Integer Data Types Floating Point SupportFloating Point Data Types Double Precision Real Single Precision RealExtended Precision Real Scientific Notation Packed Decimal Real Debugger Commands 162Bug Debugger Command Set 162Bug Debugger Command Set Norb Cnfg IM Configure Board Information Block Configure and Environment Commands ENV D Set Environment to Bug/Operating System ENV Parameter and Options Default Meaning of Default Table A-1. ENV Command Parameters Ffdffffc Nvram Memory Requirements section Base Address of Dynamic Memory Slave Ending Address #1 Master Starting Address #1 Master Starting Address #3 Table A-1. ENV Command Parameters Bits Register Address Configuring the IndustryPacks FFFBC016 First Second Controller Type Disk/Tape Controller Modules SupportedAddress Controller LUN Address Device LUN Device Type Disk/Tape Controller Default ConfigurationsCisc Embedded Controllers -- 7 Devices MVME320 -- 4 Devices MVME327A -- 9 Devices MVME323 -- 4 Devices MVME350 -- 1 Device MVME328 -- 14 Devices IOT Command Parameters for Supported Floppy Types Disk/Tape Controller Data Controller Interface Type Network Controller Modules SupportedAddress Type Network Controller Data Numerics Symbols IN-2 IN-3 IN-4 IN-5 IN-6 Scsi LED Sysfail