Icsr Commands - Digital Equipment VAXstation I Service Manual

PROGRAMMIRG INFORMATION
Table 2·10: ICSR Commands
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l ICSR* I COMMAND I DESCRIPTION I
I <07:00> I
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00000000 RESET Sets the IMR (Interrupt Mask
Register) to all ones. Clears to
OOOlOxxx
OOOlOBBB
OOllOxxx
.00111B8B
OlOOOxxx
010018BB
OllOxxxx
OlllOxxx
01111888
lOOMMMMM
CLEAR IRR AND IMR
CLEAR ONE IRR AND
!MR BIT
SET !MR
SET ONE !MR BIT
CLEAR IRR
CLEAR ONE IRR BIT
CLEAR HIGHEST
PRIORITY ISR BIT
CLEAR ISR
CLEAR ONE ISR BIT
LOAD MODE BITS
M4:MO
zeros, the IRR (Interrupt
Response Register), ISR
(Interrupt Service Register), ACR
(Auto Clear Register), and Mode
Register. Response Memory and
byte count registers are not
affected.
Clears all bits in the IRR and
!MR.
Clears both the IRR bit and the
IMR bit specified in <02:00>.
Sets all IMR bits to ones.
Sets the IMR bit specified in
<02:00>.
Clears all IRR bits to zeros.
Clears the IRR bit specified in
<02:00>.
Clears the highest priority bit
set in th~ ISR.
Clears all ISR bits to zeros.
Clears the ISR bit specified in
<02:00>.
Sets the five low-order bits of
the Mode Register to the value in
<04:00>.
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