4-4
IQ80960RM/RN
Evaluation Board Manual
i960® RM/RN I/O Processor Overview
Figure 4-3.
i960
®
RM/RN I/O Processor Interrupt Controller Connections
XINT0#
XINT1#
XINT2#
XINT3#
XINT4#
XINT5#
XINT6#
XINT7#
NMI#
S_INTA#/XINT0#
m
u
x
S_INTB#/XINT1#
m
u
x
S_INTC#/XINT2#
m
u
x
S_INTD#/XINT3#
m
u
x
XINT4#
XINT5# (UART)
NMI# (N/C)
P
_
IN
T
A
# O
u
tput
DMA Channel 0 Error
80960 Outbound Doorbell 0
80960 Outbound Doorbell 1
80960 Outbound Doorbell 2
80960 Outbound Doorbell 3
I
2
C Bus Interface Unit Interrupt Pending
Messaging Unit Interrupt Pending
i960
®
RN/RM I/O Processor
Primary ATU Error
Secondary ATU Error
Secondary PCI Bridge Interface Error
Primary PCI Bridge Interface Error
NMI In
ter
rup
t
Lat
c
h
X
INT
7 In
ter
ru
p
t
Latc
h
P
_
INT
B
# O
u
tp
ut
P
_
IN
T
C
#
O
u
tput
P
_
IN
T
D
#
O
u
tput
X
INT
6 In
ter
rup
t
Latc
h
DMA Channel 1 Error
Primary ATU/Start BIST Interrupt Pending
DMA Channel 0 Interrupt Pending
DMA Channel 1 Interrupt Pending
DMA Channel 2 Interrupt Pending
DMA Channel 2 Error
Messaging Unit Error
Memory Controller Unit Error
i960 Core
Processor
(Loss of Fan)
S_INTD# Select bit
S_INTC# Select bit
S_INTB# Select bit
S_INTA# Select bit
Performance Monitor Unit Interrupt Pending
Application Accelerator Interrupt Pending
Bus Interface Unit Error
Application Accelerator Unit Error