C
OMPACT
CHAMP-AV IV U
SER
’
S
M
ANUAL
C
URTISS
-W
RIGHT
C
ONTROLS
E
MBEDDED
C
OMPUTING
2-4
814256 V
ERSION
2 F
EBRUARY
2006
F
LASH
C
ONFIGURATION
P
ARAMETERS
The on-board Flash contains configuration parameters that are used to configure certain
features of the board. These parameters are explained in the CHAMPtools Software User’s
Manual. As explained in the CHAMPtools manual, the Software Update Utility or Boot Monitor
can be used to modify these parameters. For initial power-up of the board, there should be
no need to modify these parameters.
PMC/PMC-X M
ODULE
I
NSTALLATION
R
EQUIREMENTS
The Compact CHAMP-AV IV provides two PCI/PCI-X Mezzanine Card (PMC/PMC-X) sites: PMC
Site 1 and PMC site 2. PMC Site 1 is located between Nodes A and D while PMC Site 2 is
located between Nodes B and C. See Figure 1.8 on page 1-21 for an illustration of the
Compact CHAMP-AV IV board layout. Each PMC site can be independently configured at the
factory to support either 3.3V or 5V signaling on their PCI bus.
The PMC sites are designed to conform to the following specifications:
• PCI Local Bus Specification, PCI-SIG, Revision 2.3, March 29, 2002
• Draft Processor PMC Standard For Processor PCI Mezzanine Cards, VITA 32-2003, Rev.
1.0a; April 29, 2003
• IEEE Standard Physical and Environmental Layers for PCI Mezzanine Cards (PMC),
IEEE Std 1386.1-2001, June 14, 2001
• IEEE Standard for a Common Mezzanine Card (CMC) Family, IEEE Std 1386-2001, June
14, 2001
• PCI-X Auxiliary Standard for PMCs and Processor PMCs; VITA39-2002, Draft 0.9a; Sep-
tember 17, 2002.
• PCI-X Electrical and Mechanical Addendum to the PCI Local Bus Specifications,
PCI_SIG, Rev. 2.0, Nov. 4, 2002
• PCI-X Protocol Addendum to the PCI Local Bus Specification, PCI-SIG, Rev. 2.0, July
29, 2002
PMC Module
Voltage Types
A PMC can be a 3.3V board (uses 3.3V signaling), a 5V board (uses 5V signaling), or a
Universal board (auto selects and configures for the signaling level used by the PMC host).
Each PMC card is required to have a keying hole to indicate the type of PCI signaling it
utilizes. If the PMC’s PCI bus utilizes 3.3V PCI signaling, it should provide a 3.3V keying hole.
If the PMC’s PCI bus utilizes 5V PCI signaling, it should provide a 5V keying hole. If both
voltages can be supported, then both keying holes should be provided. Unfortunately, not
all PMCs conform to the PMC standard. Figure 2.1 shows the position of the keying holes on
a PMC.
When ordering the Compact CHAMP-AV IV board, the I/O signaling voltage must be specified
for each PMC site. Each PMC site can be factory configured to support 3.3 V or 5.0 V I/O
signaling voltage. When a PMC site is configured for 3.3 V operation, the PMC site will
operate properly with a 3.3 V PMC or a Universal PMC. When PMC site is configured for 5.0
V operation, the PMC site will operate properly with a 5.0 V PMC or a Universal PMC. Note
that the PMC specification requires all 5.0 V PCI buses to operate at a maximum frequency
of 33 MHz.
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