![]() Arm's CSS N2 marks a new phase in custom silicon for infrastructure, expanding the Arm Neoverse portfolio and enabling partners to create tailored Arm-based solutions more quickly and efficiently. In an industry where processor development efforts can take up to three years of efforts, even with large development teams, this is compelling.ĭelivering processors to market is a complex undertaking. Several Arm processor vendors have already incorporated CSS N2-based silicon and are witnessing impressive results.Īrm told us that one partner saved over eighty engineering years of integration work, while spent only 13 months from kick-off to working silicon. By relieving the complexity of developing the compute subsystem, Arm’s customers can focus on specialized computing to meet data challenges while promoting sustainability and reducing power consumption. Analyst’s TakeĪrm CSS N2 will provide significant commercial and technical advantages for its partners. This allows partners to efficiently develop platform firmware, integrate OS and services, and optimize boot flows, security, and power management before final silicon tape-out. At the same time, the Manageability Control Processor (MCP) interfaces with an external BMC for management, RAS, event logging, and communication alerts.ĬSS N2 is SystemReady SR certified (SystemReady is Arm’s compliance certification program) and includes a reference firmware stack and virtual fixed platform model. The System Control Processor (SCP) manages system functions like clock control and power domains. The design supports on-die and externally attached accelerators, allowing for on-chip accelerators through Arm's NI-700 network-on-chip interconnect or off-chip acceleration via PCIe Gen5/CXL1.1 PHYs.Īrm Neoverse CSS N2 incorporates essential compute subsystem elements, including system control and management handled by embedded Cortex-M7 processors. Neoverse CSS N2 offers multi-core and multi-chip scaling capabilities, supporting up to 256 cores across two sockets and facilitating high-speed chip-to-chip links to cater to diverse cloud-to-edge use cases. ![]() ![]() CSS N2 is compatible with the latest memory and I/O technologies, supporting up to 8x 40b DDR5 or LPDDR5 channels per die, and up to 4x x16 PCIe/CXL combo PHYs and controllers, each with 4-way bifurcation down to 4x x4 lanes. ![]()
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