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MPC859P Datasheet(PDF) 6 Page - Motorola, Inc |
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MPC859P Datasheet(HTML) 6 Page - Motorola, Inc |
6 / 12 page 6 MPC859P/859T/859DSL PowerQUICC™ FamilyTechnical Summary MOTOROLA Embedded MPC8xx Core Embedded MPC8xx Core The MPC859P/859T/859DSL Family is comprised of three modules that each use the 32-bit internal bus: the MPC8xx core, the system integration unit (SIU), and the communication processor module (CPM). The MPC859P/859T/859DSL block diagram is shown in Figure 1. 1 The MPC859P has a 16 Kbyte Instruction Cache and a 8 Kbyte Data Cache. 2 The MPC859DSL does not contain SMC2 nor the Time Slot Assigner, and provides eight SDMA controllers. Figure 1. MPC859P/859T/859DSLBlock Diagram 1.2 Embedded MPC8xx Core The MPC859P/859T/859DSL Family integrates an embedded MPC8xx core with high-performance, low-power peripherals to extend the Motorola data communications family of embedded processors farther into high-end communications and networking products. The core is compliant with the UISA (user instruction set architecture) portion of the PowerPC architecture. It has an integer unit (IU) and a load/store unit (LSU) that execute all integer and load/store operations in hardware. The core supports integer operations on a 32-bit internal data path and 32-bit arithmetic hardware. The core interface to the internal and external buses is 32 bits. Bus System Interface Unit (SIU) Embedded Parallel I/O Memory Controller 4 Timers Interrupt Controllers 8-Kbyte Dual-Port RAM 10 Virtual Serial 2 and 2 Independent DMA Channels System Functions PCMCIA-ATA Interface 4-Kbyte 1 Instruction Cache 32-Entry ITLB Instruction MMU 4-Kbyte 1 Data Cache 32-Entry DTLB Data MMU Instruction Bus Load/Store Bus Unified 4 Baud Rate Generators Parallel Interface Port and UTOPIA Internal Bus Interface Unit External Bus Interface Unit Timers 32-Bit RISC Controller and Program ROM SCC1 Serial Interface I2C SPI SMC2 2 SMC1 Time Slot Assigner MPC8xx Processor Core DMAs FIFOs 10/100 MII Base-T Media Access Serial Interface I2C SPI Time Slot Assigner* Control Fast Ethernet Controller Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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