Model 466-1 Adapter
64 CSR Accessed From The VMEbus
7.1.3 Interrupt Vector Register
This read/write register (address = I/O LO + 7
hex
), located on the VMEbus
adapter card, holds the interrupt vector transmitted to a VMEbus processor
when that processor acknowledges an interrupt from the VMEbus adapter
card. The interrupt vector is the response to an interrupt caused by the
VMEbus adapter card
or
to an interrupt passed from the SBus adapter card
through
the VMEbus adapter card (such as PT or PR Interrupts).
If the VMEbus adapter card sends an interrupt, it passes the contents of the
Interrupt Vector Register to the local VMEbus processor during the interrupt
acknowledge cycle.
The Interrupt Vector Register is preset to
FF
at power-on time and is read
from and written to by a VMEbus processor --
not
by a SBus processor.
Remote interrupt acknowledgment and remote vector passing are performed
with the IACK Read command.
Содержание 466-1
Страница 1: ...Model 466 1 Adapter Hardware Manual Connects a SBus Computer to a VMEbus System...
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Страница 52: ...Model 466 1 Adapter 42 VMEbus Adapter Card Configuration...
Страница 70: ...Model 466 1 Adapter 60 CSR Accessed From The SBus...
Страница 88: ...Model 466 1 Adapter 78 Common Problems And Solutions...
Страница 106: ...Model 466 1 Adapter 96 Jumper Configuration Worksheets...
Страница 107: ...Model 466 1 Adapter Jumper Configuration Worksheets 97 D 1 SBus Adapter Card Worksheet J1...
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Страница 110: ...Model 466 1 Adapter 100 Jumper Configuration Worksheets...