Appendix C
Functional
Description
C-19
C.4.5
BCM5793
The Sun Blade 1500 workstation uses the BCM5793 Gigabit Ethernet controller from
Broadcom. The BCM5793 is a high-performance network interface operating at 10,
100, and 1000 Mbits/second link rates.
C.4.5.1
Key Features
The following are key features of the BCM5793:
■
Integrated 10BASE-T/100BASE-TX/1000BASE-T transceivers
■
Full-duplex support in Gb mode
■
10/100/1000 tri-speed MAC
■
64-bit/66MHz PCI 2.2 host interface
■
MII/GMII/TBI interfaces for external transceivers
■
96 KB on chip packet buffer
■
Dual high-speed RISC cores with 16-KB caches
■
Programmable, inline packet classification
■
TCP, IP, UDP checksum
■
TCP segmentation
■
CPU task off load
■
Adaptive interrupts
■
Priority queuing-802.lp Layer 2 priority encoding support for four priority queues
■
Virtual LANs-802.lq VLAN tagging support for up to 64 VLANs
■
Jumbo frames (9KB)
■
802.3 flow control
■
Link aggregation-802.3ad, GEC/FEC, smart load balancing (supports
heterogeneous teams)
■
300-pin HBGA package
■
3.3v I/O
C.4.5.2
BCM5793 Block Diagram
Summary of Contents for Sun Blade 1500
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