The challenge facing designers is providing several serial interfaces for the physical-layer devices while performing OSI Layer 2 protocol processing, in a timely manner, to achieve the required data rates. The combination of a complex board layout to accommodate separate communication peripherals, the interconnect logic required for multiple serial interfaces, and the processor power necessary to process the data link layer of the OSI model, make this a particularly difficult endeavor. On the other side of the dual port RAM is a microprocessor for data link layer and maintenance processing, as well as the SIU, which consists of a versatile programmable memory controller, reset circuitry, PLL, and timers. Select the specific family member which satisfies your data rate requirements and enjoy the benefits of a flexible, cost-effective design. In ATM mode, the local bus is used to store connection tables for active ATM connections.
Additional ports remain available for system management functions.
Network security protocols involve processing sophisticated, compute-intensive algorithms, which can reduce system performance by monopolizing the host processor. The MPC180 Security Processor is easily integrated into systems already using Motorola's processors, and utilizes existing system memory, resulting in significant savings of both board space and system cost. OEM customers leveraging the Smart Networks platform. Contact your local Motorola representative or request applications assistance .