User Guide • PC3-ALLEGRO • CompactPCI
®
PlusIO CPU Board • Intel® i7-3xxx Processor
Backplane Connectors
CompactPCI
J1
J1
A
B
C
D
E
25
5V
REQ64#
2)
ENUM#
1)
3.3V
5V
24
AD1
5V
V(I/O)
AD0
ACK64#
2)
23
3.3V
AD4
AD3
5V
AD2
22
AD7
GND
3.3V
AD6
AD5
21
3.3V
AD9
AD8
GND/M66EN
7)
C/BE0#
20
AD12
GND
V(I/O)
AD11
AD10
19
3.3V
AD15
AD14
GND
AD13
18
SERR#
1)
GND
3.3V
PAR
C/BE1#
17
3.3V
IPMB SCL
3)
IPMB SDA
3)
GND
PERR#
1)
16
DEVSEL#
1)
GND
V(I/O)
STOP#
1)
LOCK#
1)
15
3.3V
FRAME#
1)
IRDY#
1)
BD_SEL#
6)
TRDY#
1)
14
KEY AREA
13
12
11
AD18
AD17
AD16
GND
C/BE2#
10
AD21
GND
3.3V
AD20
AD19
9
C/BE3#
GND
AD23
GND
AD22
8
AD26
GND
V(I/O)
AD25
AD24
7
AD30
AD29
AD28
GND
AD27
6
REQ#
1)
GND
3.3V
CLK
AD31
5
BRSVP1A5
4)
BRSVP1B5
4)
RST#
GND
GNT#
4
IPMB PWR
GND
V(I/O)
INTP
1)
INTS
1)
3
INTA#
1)
INTB#
1)
INTC#
1)
5V
INTD#
1)
2
TCK
4)
5V
TMS
4)
TDO
4)
TDI
4)
1
5V
-12V
5)
TRST#
4)
+12V
5V
1)
This pin is pulled up with 1k
S
to V(I/O).
2)
This pin is not used on PC3-ALLEGRO, but pulled up with 1k
S
to V(I/O).
3)
This pin is pulled up with 3.0k to J1 pin A4.
4)
This pin is not connected.
5)
This pin is connected to a decoupling capacitor only and not used on PC3-ALLEGRO.
6)
This pin is connected to power sequencing logic and should pulled low for normal operation.
7)
This pin can be pulled down on PC3-ALLEGRO to force 33 MHz operation on request. The PC3-ALLEGRO is capable to
operate with 66 MHz on the CPCI Bus by default
.
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