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Chapter 3. STD Bus Interface
25
STD BUS
INTERRUPT
SOURCE 1
INTERRUPT
SOURCE 2
INTERRUPT
SOURCE N
I
S
P
I
S
P
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ZT 8905
INTRQ*
INTRQ*
INTRQ*
INTRQ*
INTERRUPT
STATUS
PORT
STD Bus Polled Interrupt Structure
STD BUS
INTERRUPT
SOURCE 1
INTERRUPT
SOURCE 2
INTERRUPT
SOURCE 3
ZT 8905
INTRQ*
INTRQ1*
INTRQ2*
INTRQ*
INTERRUPT
STATUS
PORT
INTRQ1*
INTRQ2*
INTERRUPT
SOURCE 4
INTERRUPT
SOURCE 7
Frontplane
Interrupts
STD Bus Vectored Interrupt Structure
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