ZiLOG System 8000 - Page 99

HRM
SIGNAL
NAME\
MNEMONIC
INT3\
IEI1
IE01
IEI2
IE02
IEI3
IE03
Zilog HRM
NUMBER FUNCTION
OF
LINES
Level-3 Interrupt:
This interrupt line has the
lowest priority in the system.
This line, when driven by a
slave, generates a non-vectored
int.errupt.
Level-1 Interrupt Enable In:
This signal works with Level-1
interrupt enable out to form
the NMI acknowledge daisy chain.
Level-1 Interrupt Enable Out:
Level-2 Interrupt Enable In:
This signal works with Level-2
interrupt enable out to form
the VI acknowledge daisy chain.
Level-2· Interrupt Enable Out:
Level-3 In terrupt .Enable In:
This signal works with Level-3
in~errupt ~nable out to form
the NVI acknowledge daisy chain.
Level-3 Interrupt Enable Out:
MMREQ\
MMAI\
4-6
1
Multimicro Request:
When this signal is active a
module can request the use of
a common resource. The MMREQ\
signal works with signals MMAI\
and MMAO\.
Multimicro Acknowledge In:
This signal works with signal
MMAO\ to form the resource-
request daisy chain.
Zilog
4-6