
14C. Driver488/SUB, Pascal III. COMMAND REFERENCES - 14. Command Summaries
III-274 Personal488 User’s Manual, Rev. 3.0
Defined Constants
Structure Definitions
type
IeeeStatusRec = record
SC :boolean;
CA :boolean;
Primaddr :integer;
Secaddr :integer;
SRQ :boolean;
addrChange :boolean;
talker :boolean;
listener :boolean;
triggered :boolean;
cleared :boolean;
transfer :boolean;
byteIn :boolean;
byteOut :boolean;
end;
type
termrec = packed record
EOI :boolean;
nChar :integer;
EightBits :boolean;
termChar :termsvals;
end;
Arm/Disarm Bit Mask ControlLine Bit Mask for Serial Bus
acError
$800
clDSR
$20
acSRQ
$400
clRI
$10
acPeripheral
$200
clDCD
$08
acController
$100
clCTS
$04
acTrigger
$080
clDTR
$02
acClear
$040
clRTS
$01
acTalk
$020
acListen
$010
Bus Commands
acIdle
$008
bcUNT
1
acByteIn
$004
bcUNL
2
acByteOut
$002
bcMTA
3
acChange
$001
bcMLA
4
bcTALK
5
bcLISTEN
6
Completion Status Bit Mask
ccCount
$0001
Miscellaneous Commands
ccBuffer
$0002
IN
1
ccTerm
$0004
OUT
2
ccEnd
$0008
ON
1
ccChange
$0010
OFF
0
ccStop
$0020
ALL
-1
ccDone
$4000
SAME
-2
ccError
$8000
WHILE_SRQ
-2
UNTIL_RSV
-3
TRUE
1
ControlLine Bit Mask for IEEE 488 Bus
FALSE
0
clEOI
$80
MAXHANDLES
50
clSRQ
$40
NOIEEEADRESS
-1
clNRFD
$20
NODEVICE
-1
clDAC
$10
NONODE
NULL
clDAV
$08
TERMIN
1
clATN
$04
TERMOUT
2
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