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PCL-848AB User's Manual
3.4.3. DEVICE
Purpose:
This command installs an IEEE-488 device driver in place of s the LPT1:, LPT2:,
LPT3:, COM1: and COM2: driver. The IEEE-488 devices then can be accessed using
the system commandst in MS-DOS.
Offset :
DEVICE%=57
Syntax:
CALL DEVCLR%(ADDR%,PORT%) —BASIC
CALL ABSOLUTE(ADDR%,PORT%,DEVCLR%)
—BASIC Compiler~
Parameter:
ADDR% -
The address of the device which is assigned to
LPTn: or COMn:. If ADDR% < 0 or ADDR% > 30, the replace-
ment of LPTn: or COMn: is disabled.
PORT% -
The port number which is to be replaced with the
IEEE-488 device.
1 : assigned to LPT1:
2 : assigned to LPT2:
3 : assigned to LPT3:
4 : assigned to COM1:
5 : assigned to COM2:
Bus Activity:
None.
Summary of Contents for PCL-848A/B
Page 1: ...PCL 848A B MULTIFUNCTION IEEE 488 INTERFACE CARD ...
Page 6: ...Figures Fig 2 2 Location of switches and jumpers 4 Fig 7 1 PCL 848A B Block Diagram 59 ...
Page 65: ...CHAPTER 7 TBEORY OP OPERATION 59 Fig 7 1 PCL 848A B Block Diagram ...
Page 76: ...70 PCL 848AB User s Manual ...
Page 78: ...72 PCL 848AB User s Manual Handshake Timing Sequence ...
