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Purpose:
This command executes a Parallel Poll Unconfigure. It directs a device to not
respond to a parallel poll. It can e be addressed to the interface bus or to a specific
device.
Offset:
PPOLLU%=30
Syntax:
CALL PPOLLU%(ADDR%)
CALL ABSOLUTE(ADDR%,PPOLLU%)
Parameter:
ADDR' - The address of the device to be unconfigured. If s 0 <= addr <= 30, the
specified device is uncon figured. Otherwise, all the devices are unconfig-
ured.
Bus Activity:
- If 0 <= addr <= 30
ATN is set true.
UNL is sent.
LAD is sent.
MTA is sent.
PPC is sent.
PPD is sent.
- If addr < 0 or addr > 30
ATN is set true.
PPU is sent.
CHAPTER 3 PROGRAMMING REFERENCE
----BASIC
----BASIC Compiler
31
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