flash0: Memory.MappedMemory @ sysbus 0x0000_0000
    size: 0x40000

dwt: Miscellaneous.DWT @ sysbus 0xE000_1000
    frequency: 72_000_000

sram0: Memory.MappedMemory @ sysbus 0x2000_0000
    size: 0x8000

nvic0: IRQControllers.NVIC @ {
    sysbus new Bus.BusPointRegistration { address: 0xE000_E000; cpu: cpu0 }
}
    -> cpu0@0
    systickFrequency: 48_000_000

cpu0: CPU.CortexM @ sysbus
    cpuType: "cortex-m0+"
    nvic: nvic0
    init:
        PerformanceInMips 48

rtc: Timers.SAMD21_RTC @ sysbus 0x4000_1400
    IRQ -> nvic0@3

gpio_a: GPIOPort.SAMD21_GPIO @ sysbus 0x4100_4400

gpio_b: GPIOPort.SAMD21_GPIO @ sysbus 0x4100_4480

usart0: UART.SAMD5_UART @ sysbus 0x4200_0800
    -> nvic0@9

tc4: Timers.SAMD21_Timer @ sysbus 0x4200_3000
    baseFrequency: 48_000_000
    IRQ -> nvic0@19

tc6: Timers.SAMD21_Timer @ sysbus 0x4200_3800
    baseFrequency: 48_000_000
    IRQ -> nvic0@21

gclk: Memory.ArrayMemory @ sysbus 0x40000C00
    size: 0x20

usart1: UART.SAMD5_UART @ sysbus 0x4200_0C00
    -> nvic0@10

usart2: UART.SAMD5_UART @ sysbus 0x4200_1400
    -> nvic0@12

sysbus:
    init:
        Tag <0x40000000 0x08> "Peripheral Access Controller 0"
        Tag <0x40000400 0x80> "Power Manager"
        Tag <0x40000800 0x80> "System Control"
        Tag <0x4000080C 0x4> "System Control: Power and Clocks Status" 0x0000FFFF
        Tag <0x40000C00 0x10> "Generic Clock Generator"
        Tag <0x40001000 0x10> "Watchdog Timer"
        Tag <0x40001400 0x40> "Real-Time Counter"
        Tag <0x40001800 0x40> "External Interrupt Controller"
        Tag <0x41002000 0x2000> "Device Service Unit"
        Tag <0x41004000 0x80> "Non-Volatile Memory Controller"
        Tag <0x41004400 0x200> "Port Module"
        Tag <0x41004800 0x80> "Direct Memory Access Controller"
        Tag <0x41005000 0x1000> "Universal Serial Bus"
        Tag <0x41006000 0x1000> "Cortex-M0+ Micro-Trace Buffer"
        Tag <0x42000400 0x80> "Event System Interface"
        Tag <0x42000800 0x40> "Serial Communication Interface 0"
        Tag <0x42002000 0x090> "Timer Counter Control 0"
        Tag <0x42002C00 0x040> "Basic Timer Counter 3"
        Tag <0x42004000 0x80> "Analog Digital Converter"
        Tag <0x42004400 0x40> "Analog Comparators"
        Tag <0x42004800 0x10> "Digital Analog Converter"
        Tag <0x42005000 0x40> "Inter-IC Sound Interface"