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Identifying Athena CPU2 Boards

Article Number: I001
Article Type: Info
Modified: November 6, 1998

SUMMARY

In a system where there may be both old and new Athena CPUs, this procedure can be used to identify the board type without removing the board.

MORE INFORMATION

Using the Post Log

In an operational system, the post log will contain information that can be used to identify the specific hardware installed into an Athena chassis. This includes the CPU type, the SBUS type and Adapter types, among various other pieces of information.

The post log can be viewed to identify the CPU type by way of viewing the CPU's signature reported to the OS. The following information presents the specific data that can be used to identify the CPU type. If further information is required, please contact Develcon Support Services.

Post Log Data

The data contained in the post log will present various hardware information. The data that may be used to identify the CPU type is listed below:

        Athena 68030 POST Record
        
        Board 1 POST Information (CPU Slot OS #0)
        POST Version: 1003
        
        Section 1 Version: 0000
        Section 2 Version: 1015
        
        DIP settings: 00 CPU reset cause :Powered Down

The following two lines indicates the presence of a CPU2. A CPU1 does not use the Dallas Signature Chip.

        Dallas Signature Chip
        Family Code: 1 Signature: $26 76 CE 00 00 CRC-8: $00

        Memory Sizes
        ============
        Device      Size    (Hex)   Test Result
        ---------- ------ --------- -----------
        Programme: 2048kB $ 200000  Passed
        Global:    4096kB $ 400000  Passed
        NVRAM:     2048kB $ 200000  Never tested.
        SBUS:      Not reported.    Passed
        
        SBus Module Information
        =======================
        Boot status: Master
        Speed: 24 Mhz
        Redundancy: Enabled

The following line indicates the type of SBUS. $05 indicates an SBUS2, and $04 indicates and SBUS1.

        Identifier: $05 (This line identifies type of Sbus.)
        Revision: $02 
        
        IF0 Present IF1 Present
        IBus Present Signature $11 (Four port IUSC adapter)
        

REFERENCES

Please consult the Athena Product Specification (A.20000) for additional details of these two CPU types. §

Copyright © 1998 Develcon Electronics Ltd.  All Rights Reserved.