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AT7913E Datasheet(PDF) 9 Page - ATMEL Corporation |
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AT7913E Datasheet(HTML) 9 Page - ATMEL Corporation |
9 / 26 page ATMEL AT7913E [DATASHEET] 7833G −AERO−04/12 9 2. Architecture The AT7913E SpaceWire Remote Terminal Controller (RTC) is a bridge between the SpaceWire network and the CAN bus. The AT7913E is based on a LEON2-FT SPARC v8 processor core together with a wide range of interfaces including : • Debug Support Unit • LEON2-FT Peripherals • Interrupt Controller • 32-bit Timer • UART Serial Links • 16-bit General Purpose Input Output • Memory Interface • On-Chip Memory • FIFO Interface • ADC/DAC Interface. • 32-bit Timers • 24-bit General Purpose Input Output • CAN Interface • SpaceWire Link Interface • JTAG Interface 2.1 LEON2-FT processor The SpaceWire-RTC ASIC includes the LEON2-FT Integer Unit (IU) and the MEIKO Floating Point Unit (FPU). The LEON2-FT IU implements the SPARC integer instruction set as defined in the SPARC Architecture Manual Version 8. The LEON2-FT IU has the following features: • 5-stage instruction pipeline • Separate instruction and data cache interface • Support for 8 register windows • Multiplier 16x16 • Radix-2 divider (non-restoring) To allow for software compatibility with existing devices such as the AT697E from Atmel, the AT7913E SpaceWire-RTC includes all standard LEON2-FT peripherals and the debug support unit. The programming model of the SpaceWire-RTC device is thus compatible with the existing devices, only requiring support for the additional functions and interfaces to be added to the existing software development tools and operating systems. The SpaceWire-RTC includes a LEON2-FT core with 4kbyte Instruction and Data caches. It also includes a MEIKO FPU (the same one as included in the Atmel AT697device). |
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Similar Description - AT7913E_14 |
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