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Sun Enterprise 6500/5500/4500 Systems Reference Manual • April 1998
B.6.3
PCI+ I/O Board
The PCI+ I/O board (
) has two PCI bus connectors:
■
Each connector can accommodate a PCI riser card
■
Each riser card accommodates one PCI short card
In addition, onboard devices on the PCI+ I/O board provide Fast Ethernet (10/100
Mbit) and Fast/Wide SCSI interfacing.
FIGURE B-9
PCI+ I/O Board
The board contains five subsystems: I/O (PCI Bus), Memory, Bus Interface, FireHose
Interface, and Clock Generation. Four of these subsystems: the I/O (PCI Bus),
Memory, Bus Interface and internal board interface subsystems include ASICs. The
Clock subsystem distributes and generate clocks for the ASICs and PCI Bus
Interfaces on the board
Ethernet
SCSI
PCI slot 0
PCI slot 1
PCI card
Summary of Contents for 5500
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Page 89: ...Chapter 4 I O Boards and Components 4 31 FIGURE 4 27 PCI Card Removal Catch mechanism ...
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