Difference between revisions of "SB1"

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== Applications ==
 
== Applications ==
The SB1 core is beig used in Broadcom's BCM1250 system on a chip.  The BCM1125 is similar but only contains a single SB1 core.  The BCM1450 core contain four SB1 cores making it the highest performance SOC using the SB1 core.
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The SB1 core is being used in Broadcom's [[BCM1250]] system on a chip.  The [[BCM1250|BCM1125]] is similar but only contains a single SB1 core.  The [[BCM1250|BCM1450]] core contain four SB1 cores making it the highest performance SOC using the SB1 core.
 
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== BCM1250 ==
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BCM1250 is a chip that integrates ''two'' 64-bit MIPS CPU cores, each scalable to 600 MHz - 1 GHz, a large cache memory, and integrated I/O. The BCM1250 includes an on-chip 512K L2 Cache and a DDR memory controller that supports up to 2 GB of memory. Overall, the processor can support up to 50 Gbps of peak memory bandwidth. Integrated I/O includes three 10/100/1000 Ethernet MACs configurable to two 16-bit or three 8-bit FIFO interfaces, a 32-bit 33/66 MHz PCI bridge, support for HyperTransport, a high-speed I/O bus for chip-to-chip interconnect, two serial interfaces, a generic bus for direct connection to boot flash, PCMCIA support and on-chip debug features. An evaluation board platform, called the [[Swarm|BCM91250A]], uses of all the interfaces on the BCM1250, and can be used with any ATX 2.0 compliant case and power supply. Off-the-shelf peripherals including PCI graphics adapters, USB keyboards and mice, and ATA hard disks can be added. The board supports VxWorks 5.4, Linux 2.4 running in 32-bit mode with SMP support, and NetBSD 1.5 running in 32-bit mode.
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Revision as of 07:40, 16 May 2005

General

The SB1 (SiByte-1) core is a highperformance implementation of the MIPS64 architecture. It features 32kB instruction cache, 32kB data cache, 2 integer pipelines, 2 load/store pipelines and 2 fp pipelines. An SB1 core can issue upto 4 instructions per cycle.

Applications

The SB1 core is being used in Broadcom's BCM1250 system on a chip. The BCM1125 is similar but only contains a single SB1 core. The BCM1450 core contain four SB1 cores making it the highest performance SOC using the SB1 core.