Dual-Core 64-bit MIPS® Processor with DDR2, GbE, PCI-X®
The BCM1255 device is an MIPS64 processor core-based system-on-achip (SOC) that offers industry-leading performance, high functional integration, and low-power levels required by next-generation computing, storage, and networking applications.
The BCM1255 is a chip multiprocessor (CMP) system consisting of two Broadcom SB-1 high-performance MIPS64 CPUs, a shared 512-KB L2 cache, a DDR memory controller, and integrated I/O. All major blocks of the processor are connected together via the ZBbus, a high-speed, split-transaction multiprocessor bus. The bus implements the standard MESI protocol to ensure coherency between the two CPUs, L2 cache, I/O agents, and memory. Four Gigabit-Ethernet MACs (10/100/1000) enable easy interfacing to LANs or control backplanes.
- Product Brief
BCM1255
- Two 64-bit MIPS® CPUs, scalable from 800 MHz - 1.2 GHz
- Fast on-chip multiprocessor bus connects the CPUs, L2 cache, memory controller, and I/O bridges
- Industry-leading 2.5 Dhrystone MIPS/MHz per CPU performance
- Low-power dissipation of 13W @ 1 GHz
- Product Brief
BCM1255
