1oo2 security architecture with 32-bit processor

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The system consists of two subsystems, 1oo2 Safety-System and 1oo1 Com-System

Safety system

  • 2 x 32 bit IP cores
  • 2 power domains
  • Hardware comparator
  • Peripheral devices
    • Counter
    • PWM
    • 2 x SPI
    • I / O (64 inputs, 64 outputs)
  • 8 MiB SDRAM (ECC), 4 MiB Flash
  • Access to Com. system memory and peripheral devices

Com-System

  • 1x 32 bit IP core
  • Peripheral devices
    • 4 x UART (2 KiB Rx/Tx FIFO)
    • 2 x CAN
    • 2 x SPI
    • I2C
    • GPIO (16 inputs/outputs)
    • 2 x Fast Ethernet
  • 8 MiB SDRAM (ECC), 4 MiB Flash