User Guide CC9-SAMBA •
CompactPCI®
Pentium M CPU Board
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Rear I/O Options
Optionally, the CC9-SAMBA can be used for rear I/O with respect to the following functions:
•
Analog Graphics
•
Gigabit Ethernet
•
Primary IDE
•
2 USB Ports
•
Keyboard, Mouse
•
COM1 (TTL Level)
The analog graphics and the gigabit ethernet signals are routed to multiplexers on the CC9-SAMBA.
These switches, controlled by BIOS, select either the front panel or the rear I/O connection. Keyboard
and mouse as well as the serial interface require the on-board SIO to be stuffed. The COM1 port does
not include the physical transceiver (TTL level only). This transceiver is located on the rear I/O module
CCR-RIO instead. Each of the above functions can be activated individually (by appropriate
stuffing/removing of resistor networks).
The CC9 CPU card by default is suitable for a 64-bit
CompactPCI
backplane. However, the J2/P2 pin
assignments of a 64-bit CPCI backplane differ substantially from a
CompactPCI
rear I/O backplane.
Hence
usage of the rear I/O features is available only as stuffing options on the CC9 CPU board, which
have to be ordered explicitly
.
The system in use must be equipped with a P2
CompactPCI
rear I/O backplane
. If the system is
provided with a P2
CompactPCI
64-bit backplane instead, several of the CC9 rear I/O signals will
collide with the 64-bit address/data lines on the backplane, with unpredictable results regarding the
rear I/O signal integrity.
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