VME Address Map
The module responds to A24D16 instructions only, so use only
even byte addresses. The top 12 address bits are set by three
hex switches, so an individual module occupies 4kB of VME address
space. All address lines are decoded, and the available commands of
the current version of the module occupy the bottom 128 bytes of this
4kB space. The rest of this space is reserved.
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*********************** Write Action: ****************************
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Address Mnemonic Action Notes
Offset
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000 - 03E SCNSC Select Channel & Start Conversion
040 - 050 LDacNU Load DAC<N>, Update all N=0:8
052 - 054 Reserved
056 UpDax Update DACs 0-7
058 LCReg Load Control Register
05A - 05C Reserved
05E ClADax Clear All DACs
060 - 06E LDacN Load DAC<N>, No Update N=0:7
070 LDacN Load DAC_8, Update just DAC_8 N=8
072 - 076 Reserved
078 PwrOff Power Off
07A PwrOn Power On
07C Reserved
07E RstAll Reset All
080 - FFE Reserved
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*********************** Read Action: *****************************
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Address Mnemonic Action Notes
Offset
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000 RR Read Result
002 - 00E Reserved
010 RRICSC Read Res, Inc Channel, Start Conv
012 - 01E Reserved
020 RMxSel Read Mux Select bits Diagnostic
022 - 02E Reserved
030 RMxEns Read Mux Enables Diagnostic
032 - FFE Reserved
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The same information, but viewed from the
VME command standpoint is also available.
John Hill Last update 15 July 1997