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  • Embedded single-issue, 32-bit MPC8xx core (implementing the PowerPC architecture) with thirty-two 32-bit general-purpose registers (GPRs)
    1. The core performs branch prediction with conditional prefetch, without conditional execution
    2. 4- or 8-Kbyte data cache and 4- or 16-Kbyte instruction cache
    3. MMUs with 32 entry TLB, fully associative instruction and data TLBs
    4. MMUs support multiple page sizes of 4, 16, and 512 Kbytes, and 8 Mbytes; 16 virtual address spaces and 16 protection groups
    5. Advanced on-chip-emulation debug mode


  • Up to 32-bit data bus (dynamic bus sizing for 8, 16, and 32 bits)
  • 32 Address lines
  • Operates at up to 80 MHz
  • Memory controller (eight banks)
    1. Contains complete dynamic RAM (DRAM) controller
    2. Each bank can be a chip select or RAS to support a DRAM bank
    3. Up to 15 wait states programmable per memory bank
    4. Glueless interface to DRAM, SIMMS, SRAM, EPROM, Flash EPROM, and other memory      devices.
    5. DRAM controller programmable to support most size and speed memory interfaces
    6. Four CAS lines, four WE lines, one OE line
    7. Boot chip-select available at reset (options for 8-, 16-, or 32-bit memory)
    8. Variable block sizes (32 Kbytes to 256 MBytes)
    9. electable write protection
    10. On-chip bus arbitration logic


  • Four 16-bit timers or two 32-bit General Purpose timers
  • Software watchdog and real-time clock
  • IEEE 1149.1 test access port (JTAG)
  • 10/100 Mbps Ethernet support, fully compliant with the IEEE 802.3u Standard
  • Communications processor module (CPM)
    1. RISC communications processor (CP)
    2. Up to 8Kbytes of dual-port RAM
    3. 16 serial DMA (SDMA) channels


  • Four baud-rate generators (BRGs)
  • Four serial communications controllers (SCCs)
  • One SPI (serial peripheral interface)
  • One I2C (inter-integrated circuit) port
  • Debug interface: Eight comparators: four operate on instruction address, two operate on    data address, and two operate on data

The CPU board is designed around the PowerPC processor MPC860T from Freescale semiconductor


The MPC860 Quad Integrated Communications Controller (PowerQUICC™) is a versatile one-chip integrated microprocessor and peripheral combination that can be used in a variety of controller applications. It particularly excels in both Communications and networking systems. The MPC860 is a derivative of Motorola’s MC68360 Quad Integrated Communications Controller (QUICC™), referred to here as the QUICC, which implements the PowerPC architecture. The CPU on the MPC860 is a 32-bit MPC8xx core implementation that incorporates memory management units (MMUs) and instruction and data caches and that implements the PowePC instruction set. The memory controller has been enhanced, enabling the MPC860 to support any type of memory, including high-performance memories and new types of DRAMs.


The MPC860T processor is mainly used in the RADAR Systems (Bharani and Rohini Radar)


MPC860T processor integrates the enhanced PowerPC core and advanced features such as SDRAM with 1GB, 128 MB of NOR flash, 8GB of NAND Flash, up to 1 GHz of clock speed, up to 16MB of NVRAM. The system provides the required interfaces to interface custom modules in the system. The system provides communication bus interfaces like asynchronous communication port on RS232 and two-gigabit Ethernet ports


Field Programmable Gate Array used is Defense-grade Virtex®-7Q device that offers the largest portfolio of high-performance, high reliability for systems in markets such as Intelligence, Surveillance and Reconnaissance (ISR), Electronic Warfare (EW), Commercial & Military Avionics


On-board it has 512Kx32 FLASH MODULE, In-System Programmable CPLD which has 36 macrocells with 800 usable gates, High performance 32K x 8 Static RAM, 16k Nonvolatile SRAM, HIGH-SPEED 64K x 8 DUAL-PORT STATIC RAM, In-System Programmable Configuration PROM