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- Communications_Processor_Module abstract "Communications Processor Module (CPM) is a component of Motorola 68000 family (QUICC) or Motorola/Freescale Semiconductor Power Architecture (PowerQUICC) microprocessors designed to provide features related to imaging and communications. A microprocessor can delegate most of the input/output processing (for example sending and receiving data via the serial interface) to the Communications Processor Module and the microprocessor does not have to perform those functions itself. Some input/output functions require quick response from the processor, for example due to precise timing requirements during data transmission. With CPM performing those operations, the main microprocessor is free to perform other tasks.The CPM features its own RISC microcontroller (Communication Processor), separate from the actual Central Processing Unit IP core. The RISC microcontroller communicates with the core using dual-ported RAM, special command, configuration and event registers as well as via interrupts.Motorola 68302 Integrated Multiprotocol Processor featured a RISC processor controlled either by a microcode in ROM or by downloadable firmware. Various forms of microcode where shipped for different applications, for example to support Signaling System 7 communications or Centronics parallel interface. Motorola 68360 QUICC was the first design to feature Communications Processor Module, offering microcode for SS7 and ISDN applications. Specifications of the microcontroller programming interface were generally not shipped to customers. It was possible to run 68360 in slave mode and to use only CPM part of the chip, for example in the M68360QUADS-040 board, where 68040 CPU (master) is coupled with 68360 CPM (slave), with CPU of 68360 processor being disabled.CPM was used later in the PowerQUICC series of Power Architecture based processors. Early designs, like MPC860, used virtually the same CPM as the previous 68360 QUICC processors.Typical features of the CPM include: Digital signal processing with multiply accumulate module (MAC), Communication interfaces with serial communication controllers (SCC), serial management controllers (SMC), Universal Serial Bus, I²C and Serial Peripheral Interface Bus attachment, Direct memory access (DMA) circuitry, interrupt controller, time-slot assigner and baud rate generators.↑ ↑ ↑ ↑ ↑".
- Communications_Processor_Module wikiPageExternalLink MC68360UM.pdf.
- Communications_Processor_Module wikiPageExternalLink MPC823UM.pdf.
- Communications_Processor_Module wikiPageID "34212377".
- Communications_Processor_Module wikiPageLength "3999".
- Communications_Processor_Module wikiPageOutDegree "36".
- Communications_Processor_Module wikiPageRevisionID "704136360".
- Communications_Processor_Module wikiPageWikiLink Category:Freescale_Semiconductor.
- Communications_Processor_Module wikiPageWikiLink Category:Motorola_microprocessors.
- Communications_Processor_Module wikiPageWikiLink Category:PowerPC_microprocessors.
- Communications_Processor_Module wikiPageWikiLink Central_processing_unit.
- Communications_Processor_Module wikiPageWikiLink Digital_signal_processing.
- Communications_Processor_Module wikiPageWikiLink Direct_memory_access.
- Communications_Processor_Module wikiPageWikiLink Dual-ported_RAM.
- Communications_Processor_Module wikiPageWikiLink Freescale_683XX.
- Communications_Processor_Module wikiPageWikiLink Freescale_Semiconductor.
- Communications_Processor_Module wikiPageWikiLink IEEE_1284.
- Communications_Processor_Module wikiPageWikiLink output.
- Communications_Processor_Module wikiPageWikiLink Integrated_Services_Digital_Network.
- Communications_Processor_Module wikiPageWikiLink Interrupt.
- Communications_Processor_Module wikiPageWikiLink I²C.
- Communications_Processor_Module wikiPageWikiLink Microcode.
- Communications_Processor_Module wikiPageWikiLink Motorola_68000_series.
- Communications_Processor_Module wikiPageWikiLink Motorola_68040.
- Communications_Processor_Module wikiPageWikiLink Multiply–accumulate_operation.
- Communications_Processor_Module wikiPageWikiLink PowerQUICC.
- Communications_Processor_Module wikiPageWikiLink Power_Architecture.
- Communications_Processor_Module wikiPageWikiLink Programmable_Interrupt_Controller.
- Communications_Processor_Module wikiPageWikiLink QUICC.
- Communications_Processor_Module wikiPageWikiLink Read-only_memory.
- Communications_Processor_Module wikiPageWikiLink Reduced_instruction_set_computing.
- Communications_Processor_Module wikiPageWikiLink Semiconductor_intellectual_property_core.
- Communications_Processor_Module wikiPageWikiLink Serial_Peripheral_Interface_Bus.
- Communications_Processor_Module wikiPageWikiLink Signalling_System_No._7.
- Communications_Processor_Module wikiPageWikiLink Symbol_rate.
- Communications_Processor_Module wikiPageWikiLink Synchronization_in_telecommunications.
- Communications_Processor_Module wikiPageWikiLink Time-division_multiplexing.
- Communications_Processor_Module wikiPageWikiLink USB.
- Communications_Processor_Module wikiPageWikiLink transmitter.
- Communications_Processor_Module wikiPageWikiLinkText "Communications Processor Module".
- Communications_Processor_Module wikiPageUsesTemplate Template:NXP_Semiconductors.
- Communications_Processor_Module wikiPageUsesTemplate Template:Power_Architecture.
- Communications_Processor_Module wikiPageUsesTemplate Template:Reflist.
- Communications_Processor_Module subject Category:Freescale_Semiconductor.
- Communications_Processor_Module subject Category:Motorola_microprocessors.
- Communications_Processor_Module subject Category:PowerPC_microprocessors.
- Communications_Processor_Module hypernym Component.
- Communications_Processor_Module type MilitaryUnit.
- Communications_Processor_Module comment "Communications Processor Module (CPM) is a component of Motorola 68000 family (QUICC) or Motorola/Freescale Semiconductor Power Architecture (PowerQUICC) microprocessors designed to provide features related to imaging and communications. A microprocessor can delegate most of the input/output processing (for example sending and receiving data via the serial interface) to the Communications Processor Module and the microprocessor does not have to perform those functions itself.".
- Communications_Processor_Module label "Communications Processor Module".
- Communications_Processor_Module sameAs Q5154108.
- Communications_Processor_Module sameAs m.0hzq949.
- Communications_Processor_Module sameAs Q5154108.
- Communications_Processor_Module wasDerivedFrom Communications_Processor_Module?oldid=704136360.
- Communications_Processor_Module isPrimaryTopicOf Communications_Processor_Module.