HP 3336A - Page 63

Appendix A
To cause simultaneous action in all devices capable of responding:
BUS MANAGEMENT LINES
ATN IFC SRQ REN EOI oar sent on Data lines
T F x T x BS
—_ universal Group Execute Trigger
(101g)
To cause simultaneous action in selected devices:
First:
BUS MANAGEMENT LINES
ATN IFC SRQ REN EOI cease et on Data lines
T F xX TT X ? U + 6
L device #2 listen address
device #1 listen address
controller talk address
universal unlisten (077g)
Second:
BUS MANAGEMENT LINES
ATN ‘IFC SRQ REN EO! ——— sent on Data lines
BS
F F Xx T x |
universal Group Execute Trigger
(0108)
Figure 3-A-9. Trigger.
To send the REQUIRE SERVICE message:
BUS MANAGEMENT LINES
ATN IFC SRQ REN EOI
Xx Xx T X Xx
Figure
3-A-10.
Require
Service.
A-7