Multisystem Extension Interface
for PXI and CompactPCI
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Virtual Instrumentation via PC Control
GPIB
Te
mpe
ratu
re
Flo
w
Co
ntro
l Pa
ne
Pr
es
l
su
re
Alar
m
Co
nd
itio
ns
ST
OP
>1 MB/s
HS488 - 8 MB/s
Te
mpe
ratu
re
Flo
w
MXI, MXI-2
Co
ntro
l Pa
ne
Pr
es
l
su
re
Alar
m
Co
nd
itio
ns
ST
OP
>10 MB/s
Te
mpe
ratu
re
Flo
w
Pr
es
Co
ntro
l Pa
ne
su
re
l
Alar
m
Co
nd
itio
ns
ST
OP
MXI-3
~100 MB/s
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So What’s the Problem?
PCs are low on slots
Embedded computers cost more than PCs
7 CompactPCI slots aren’t enough
MXI-2 can’t extend PXI
Te
m
pe
ratu
re
Flo
w
Co
ntr
o
lP
Pre
ss
ure
Ala
rm
Co
n
dit
ion
s
ST
OP
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an
el
Standard PCI Expansion
PCI-to-PCI Bridging
Software Transparent!
CPU
Chip
Set
DRAM
ISA
S
l
o
t
1
S
l
o
t
2
…
Cache
PCI Bus #0
S
l
o
t
N
S
l
o
t
1
S
l
o
t
2
S
l
o
t
3
S
l
o
t
4
Primary
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PCI Bus #1
PCI-to-PCI
Bridge
S
l
o
t
1
S
l
o
t
2
S
l
o
t
3
S
l
o
t
4
Secondary
Standard PCI-PCI Bridge
PCI 0
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PCI 1
MXI-3 Implementation of PCI-PCI Bridge
d
a
t
a
data
buffers
PCI 0
Config
Regs
c
o
n
t
r
o
l
Tar
get
Ma
ster
p
a
c
k
e
t
i
z
e
r
PRIMARY
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parallel/
serial
transceiver
parallel
/serial
transceiver
p
a
c
k
e
t
i
z
e
r
data
buffers
d
a
t
a
PCI 1
Config
Regs
Ma
ster
Tar
get
SECONDARY
c
o
n
t
r
o
l
MXI-3 Architecture
PCI-to-PCI Bridge
PCI
Serial
I/F
CompactPCI
1.5 GHz
MXI-3
Serial
I/F
MXI-3
High Speed Serial Link
Primary
PCI 0
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Still Software Transparent!
Secondary
PCI 1
Configurations for MXI-3
Tem
pe
ratu
re
Flo
w
Con
trol
Pre
ss
Pan
el
ure
Ala
rm
Con
ditio
ns
ST
OP
PCI to PXI/CompactPCI
PXI/CPCI to PXI/CPCI
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Media Types and Distance
What’s This?
Copper
• small flexible, shielded cable
• up to 10 m distance
Fiber Optic
• two Fiber Optic Cables
• up to 200
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m distance!
MXI-3 Extension Kits and Boards
 PXI-PCI8330 Kit: Copper PC-to-PXI/CompactPCI Kit
• Includes PCI-8330, PXI-8330, and 2 m Copper cable
 PXI-PCI8335 Kit: Fiber optic PC-to-PXI/CompactPCI Kit
• Includes PCI-8335, PXI-8335, and 30 m fiber cable
 For other configurations, use board and cable-only kits:
•
•
•
•
•
•
PCI-8330: Copper Extension Board
PCI-8335: Fiber Optic Extension Board
PXI-8330: Copper Extension Module
PXI-8335: Fiber Optic Extension Module
2, 5, and 10 m Copper cables available separately
30 m Fiber Optic cable available separately
– Other Fiber Optic lengths available from Molex, Inc.
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MXI-3 Benefits Summary
More slots
Transparent
High speed
Short and
L O N G distances
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