52
*PRE
Parallel Poll Enable
Syntax:
*PRE <mask>
Parameters:
<mask> is an integer in the range 0 to 255 inclusive. The value of this number
is written into the Parallel Poll Enable register.
Function:
This command sets the Parallel Poll Enable register bits. The Parallel Poll
Enable register is used in conjunction with the Status Byte to generate the IST
(Individual Status) message. See Appendix C for a detailed description of the
Event Status Register.
The Parallel Poll Enable Register is set to 0 at power-on.The Parallel Poll
Enable Register is an 8-bit, bit mapped register, with each bit signifying a
different condition. The bits and their significance are detailed below:
New Data Available
New Valid Data Available
Not Used
Not Used
Message Available Mask
Event Status Byte Mask
Master Summary Status Mask
Error Queue Mask
0
1
2
3
4
5
6
7
Parallel Poll Enable Register
Related Commands:
*IST, *PRE?, *STB?*PRE?
Parallel Poll Enable Query
Syntax:
*PRE?
Parameters:
None
Function:
This query returns the contents of the Parallel Poll Enable register. See the
*PRE command for a description of the Parallel Poll Enable register. See
Appendix C for a detailed description of the Event Status Register.
Returns:
<mask>
<mask> is of type <number> and represents an unsigned integer in the range 0
to 255.
Related Commands:
*IST, *PRE, *STB?
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