Xycom XVME-400 Manual page 19

XVME-400/40 I /490/49 1 Manual
October, 1989
2.4.2 Address Modifier Jumper (Jl or J7)
Each XVME-400/401/490/491
modifier codes it
will
XVME-401/491 (see Figures 2-1, 2-2, 2-3, and 2-4 for the jumper location). When this
jumper is in, the module will respond to supervisory short I/O bus cycles only. When this
jumper is out, the module will respond to both non-privileged and supervisory short I/O
bus cycles. Table 2-4 shows the relationship between this jumper and the address
modifiers.
Jumper
J1 (XVME-400/490), or
J7 (XVME-401/491)
In
Out
2.4.3 Interrupt Level Selection Jumpers (JAl-JA3)
The XVME-400/401/490/491 Module can either be configured to generate VMEbus
interrupts at levels 1-7 or the module interrupt capability can be completely disabled.
Table 2-5 shows how jumpers JAl-JA3 are used to determine the interrupt level status for
the XVME-400/40l/490/491 Module.
JA3
In
In
In
In
out
out
out
out
The module is shipped from the factory with jumpers
If the module is never required to generate interrupts, JAI, JA2, and
JA3 should be installed to ensure that a programming bug will not
generate a VMEbus interrupt.
Module has one jumper that determines which address
respond to. This jumper is Jl on the XVME-400/490 and J7 on the
Table 2-4. Addressing Options
Address Modifier to which the XVME-400/40l/490/491
Module will respond
(2DH) Supervisory only
(2DH) Supervisory or (29H) Non-privileged
Table 2-5. Interrupt Level Jumper Positions
JA2
JA1
In In
In out
In
out
out out
In In
In out
In
out
out out
Interrupt Level Selected
None, VMEbus Interrupter disabled
Level 1
Level 2
Level 3
Level 4
Level 5
Level 6
Level 7
JAl, JA2,
NOTE
2-8
and JA3 installed.