Product Overview
007-4653-001
67
Three PIC (PCI interface chip) ASICs are key components of the IX-brick architecture.
These ASICs support two 1200- or 800-MB/s Xtown2 XIO ports and six PCI-X buses (see
Figure 4-2). Each bus has two card slots in which you can install PCI cards. (Slot 1 of bus
1, however, seats the IO9 card.)
Figure 4-2
IX-brick Block Diagram
Bus 6 slot 2
Bus 6 slot 1
Bus 5 slot 2
Bus 5 slot 1
Bus 4 slot 2
Bus 4 slot 1
Bus 3 slot 2
Bus 3 slot 1
Bus 2 slot 2
Bus 2 slot 1
Bus 1 slot 2
Crosstown2 XIO port
Crosstown2 XIO port
PIC
ASIC
Port F
Port D (XIO)
PIC
ASIC
Port F
Port A
(XIO)
Port B
(XIO)
Port D (XIO)
Port C (XIO)
PIC
ASIC
Port F
Port D (XIO)
DVD-ROM
SCSI disk drives (2)
Bus 1 slot 1
Ethernet port
SCSI port
RTI ports
Serial ports
IO9 PCI card
Summary of Contents for Origin 3900
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Page 3: ...007 4653 001 iii Record of Revision Version Description 001 October 2003 Original Release ...
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