Control Functions
PSI BOX PLUS+ Reference
END=.
Set The End Of Output Method.
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Purpose.
Sets or changes the End Of Sequence terminator for
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OUTPUTS from the PSI BOX.
This command is used to inform the PSI BOX of when to
set the EOI line true when writing data to the IEEE device.
The PSI BOX can be instructed never to set EOI true, or
EOI can be set true when a particular character, in the range 00-
255, is the last byte to be sent from the PSI BOX. The PSI
BOX can be instructed to compare all 8 bits of the character
written or just the 7 least significant bits.
Alternatively, using EOS=ON the EOI signal can be set
when the last byte in the current string is output, this is the
default condition.
Format.
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a) END=
;EOI never sent true during an IEEE bus
write. Equivalent to END=OFF.
b) END= character
;EOI sent true only when the PSI BOX
sends the character specified as the last
byte in the output sequence.
An 8 bit comparison is made.
c) END= character,8
;EOI sent true only when the PSI BOX
sends the character specified as the last
byte in the output sequence.
An 8 bit comparison is made.
d) END= character,7
;EOI sent true only when the PSI BOX
sends the character specified as the last
byte in the output sequence.
Only the bottom 7 bits of the data byte
output by the PSI BOX is compared to
the END character.
Params.
None, One or Two.
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Chapter 8
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