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CP308
Functional Description
ID 1027-4487, Rev. 3.0
Page 2 - 17
P R E L I M I N A R Y
The CP308 supports up to seven peripheral slots through a CompactPCI backplane.
2.3.8.2
Board Functionality when Installed in Peripheral Slot (Passive Mode)
In a peripheral slot, the board receives power but does not communicate on the CompactPCI
bus; all CompactPCI signals are isolated.
2.3.8.3
Front/Rear I/O Configuration
The CP308 is available in two versions:
• CP308 front I/O version
• CP308 rear I/O version
Please ensure that the correct version is stated on the order. If the CP308 is ordered with front
I/O configuration, the board provides a 64-bit termination to the backplane via the CompactPCI
connector J2. If the CP308 is ordered with rear I/O configuration, various I/O interfaces and sig-
nals are available via the CompactPCI connector J2, such as USB, SATA, GbE, VGA, and
COM, as well as power and management signals.
2.3.8.4
Board Insertion/Replacement under Power
The following features are implemented on the CP308:
• Power ramping (hot plugging)
• ENUM signal handling (hot swapping of peripheral boards)
Power ramping on the CP308 provides the hot plug functionality on the power interface. The
PCI signal interface does not provide hot swap functionality. No microswitch, no blue LED and
no signal precharge are provided on the CP308.
The ENUM signal on the CP308 allows for hot swapping of peripheral boards with hot swap
capability when the CP308 is installed in the system controller slot.
2.3.8.5
Power Ramping
On the CP308 a special power controller is used to ramp up the onboard supply voltages. This
is done to avoid transients on the +3.3V and +5V power supplies from the system. When the
power supply is stable, the power controller generates an onboard reset to put the board into
a defined state.
2.3.8.6
ENUM# Interrupt
If the board is operated in the system controller slot, the ENUM signal is an input.
Note ...
The CP308 supports universal PCI V(I/O) signaling voltages with one common
resistor configuration. For both 5V and 3.3 V PCI signaling voltages, 2.7 k
Ω
pull-
up resistors are used.
Note ...
The CP308 itself is not hot swappable when inserted in a system controller slot.
When inserted in a peripheral slot, the CP308 is hot pluggable.
Содержание CP308
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Страница 155: ...ID 1027 4487 Rev 3 0 Page C 1 CP308 CP RIO3 04 Rear I O CUSTOMER SPECIFIC P R E L I M I N A R Y CP RIO3 04 Appendix 1 C ...