描述： ,The MPC850 is a versatile, one-chip integrated microprocessor and peripheral combination that can be used in a variety of controller applications. In addition, its lower cost implementation of the MPC860 provides an effective price/performance solution for Networking and Communications applications. The MPC850 is powered by a high-performance embedded MPC8xx core and includes extensive communications and system integration support, simplifying the development effort and decreasing time-to-market. An example of the integration that the MPC850 provides begins with the communications processor module (CPM) which offloads tasks from the embedded MPC8xx core providing increased performance and efficiency over more traditional CPU architectures. Furthermore, the CPM of the MPC850 supports up to seven serial channels, two serial communications controllers (SCCs), one I,2,C port, one universal serial bus channel (USB), including two serial management controllers (SMCs), and one serial peripheral interface (SPI)., View Product Image View Block Diagram,Features, , , 2-Kbyte Instruction Cache , , 1-Kbyte Data Cache , , Instruction and Data MMUs , , Up to 32-Bit Data Bus (Dynamic Bus Sizing for 8,16, and 32 Bits) , , 26 External Address Lines , , Complete Static Design (0-66 MHz Operation) , , Memory Controller (Eight Banks) , , General-Purpose Timers , , System Integration Unit (SIU) , , Interrupts , , Communications Processor Module (CPM) , , Four Baud Rate Generators , , Up to two SCCs (Serial Communication Controller with Ethernet Support) , , One USB Port , , Two SMCs (Serial Management Channels) , , One SPI (Serial Peripheral Interface) , , One I,2,C (Inter-Integrated Circuit) Port , , Time-Slot Assigner , , Parallel I/O Ports (supports UTOPIA) , , PCMCIA Interface , , Low Power Support , , Debug Interface , , 3.3 V Operation , , 3.3 V System Bus Operation , , 256-Pin Ball Grid Array (BGA) , ,