{
  "version": "kb-boards-0.1",
  "docs_commit": "ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d",
  "licence_note": "Facts summarised from Raspberry Pi documentation (CC BY-SA 4.0) and Raspberry Pi Ltd datasheets/pinctrl (BSD-3). Raw sources are cached under data/kb/raw (git-ignored), not redistributed.",
  "boards": [
    {
      "model": "Raspberry Pi Model B",
      "series": "Flagship single-board computer (SBC) series",
      "soc": "BCM2835",
      "gpio_header": "26-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L23",
      "gpio_family": "bcm2835",
      "in_scope": false,
      "scope_note": "Original 26-pin header (Model A/B); pin mapping differs from the 40-pin header."
    },
    {
      "model": "Raspberry Pi Model A",
      "series": "Flagship single-board computer (SBC) series",
      "soc": "BCM2835",
      "gpio_header": "26-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L41",
      "gpio_family": "bcm2835",
      "in_scope": false,
      "scope_note": "Original 26-pin header (Model A/B); pin mapping differs from the 40-pin header."
    },
    {
      "model": "Raspberry Pi Model B+",
      "series": "Flagship single-board computer (SBC) series",
      "soc": "BCM2835",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L54",
      "gpio_family": "bcm2835",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi Model A+",
      "series": "Flagship single-board computer (SBC) series",
      "soc": "BCM2835",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L67",
      "gpio_family": "bcm2835",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi 2 Model B",
      "series": "Flagship single-board computer (SBC) series",
      "soc": "BCM2836",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L83",
      "gpio_family": "bcm2835",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi 3 Model B",
      "series": "Flagship single-board computer (SBC) series",
      "soc": "BCM2837",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L100",
      "gpio_family": "bcm2835",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi 3 Model B+",
      "series": "Flagship single-board computer (SBC) series",
      "soc": "BCM2837B0",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L118",
      "gpio_family": "bcm2835",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi 3 Model A+",
      "series": "Flagship single-board computer (SBC) series",
      "soc": "BCM2837B0",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L133",
      "gpio_family": "bcm2835",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi 4 Model B",
      "series": "Flagship single-board computer (SBC) series",
      "soc": "BCM2711",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L147",
      "gpio_family": "bcm2711",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi 5",
      "series": "Flagship single-board computer (SBC) series",
      "soc": "BCM2712",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L173",
      "gpio_family": "rp1",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi 400",
      "series": "Keyboard computer (X00) series",
      "soc": "BCM2711",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L214",
      "gpio_family": "bcm2711",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi 500",
      "series": "Keyboard computer (X00) series",
      "soc": "BCM2712",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L227",
      "gpio_family": "rp1",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi 500+",
      "series": "Keyboard computer (X00) series",
      "soc": "BCM2712",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L240",
      "gpio_family": "rp1",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi Zero",
      "series": "Zero series",
      "soc": "BCM2835",
      "gpio_header": "40-pin GPIO header (unpopulated)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L273",
      "gpio_family": "bcm2835",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi Zero W",
      "series": "Zero series",
      "soc": "BCM2835",
      "gpio_header": "40-pin GPIO header (unpopulated)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L277",
      "gpio_family": "bcm2835",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi Zero WH",
      "series": "Zero series",
      "soc": "BCM2835",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L284",
      "gpio_family": "bcm2835",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi Zero 2 W",
      "series": "Zero series",
      "soc": "RP3A0",
      "gpio_header": "40-pin GPIO header (unpopulated)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L291",
      "gpio_family": "bcm2835",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi Zero 2 W with headers",
      "series": "Zero series",
      "soc": "RP3A0",
      "gpio_header": "40-pin GPIO header",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L298",
      "gpio_family": "bcm2835",
      "in_scope": true
    },
    {
      "model": "Raspberry Pi Compute Module 1",
      "series": "Compute Module series",
      "soc": "BCM2835",
      "gpio_header": "board connector (no 40-pin header; GPIO via carrier board)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L318",
      "gpio_family": "bcm2835",
      "in_scope": false,
      "scope_note": "GPIO exposed through the carrier board, not a fixed 40-pin header."
    },
    {
      "model": "Raspberry Pi Compute Module 3",
      "series": "Compute Module series",
      "soc": "BCM2837",
      "gpio_header": "board connector (no 40-pin header; GPIO via carrier board)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L323",
      "gpio_family": "bcm2835",
      "in_scope": false,
      "scope_note": "GPIO exposed through the carrier board, not a fixed 40-pin header."
    },
    {
      "model": "Raspberry Pi Compute Module 3+",
      "series": "Compute Module series",
      "soc": "BCM2837B0",
      "gpio_header": "board connector (no 40-pin header; GPIO via carrier board)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L331",
      "gpio_family": "bcm2835",
      "in_scope": false,
      "scope_note": "GPIO exposed through the carrier board, not a fixed 40-pin header."
    },
    {
      "model": "Raspberry Pi Compute Module 4S",
      "series": "Compute Module series",
      "soc": "BCM2711",
      "gpio_header": "board connector (no 40-pin header; GPIO via carrier board)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L343",
      "gpio_family": "bcm2711",
      "in_scope": false,
      "scope_note": "GPIO exposed through the carrier board, not a fixed 40-pin header."
    },
    {
      "model": "Raspberry Pi Compute Module 4",
      "series": "Compute Module series",
      "soc": "BCM2711",
      "gpio_header": "board connector (no 40-pin header; GPIO via carrier board)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L363",
      "gpio_family": "bcm2711",
      "in_scope": false,
      "scope_note": "GPIO exposed through the carrier board, not a fixed 40-pin header."
    },
    {
      "model": "Raspberry Pi Compute Module 5",
      "series": "Compute Module series",
      "soc": "BCM2712",
      "gpio_header": "board connector (no 40-pin header; GPIO via carrier board)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L389",
      "gpio_family": "rp1",
      "in_scope": false,
      "scope_note": "GPIO exposed through the carrier board, not a fixed 40-pin header."
    },
    {
      "model": "Raspberry Pi Pico",
      "series": "Pico microcontroller boards",
      "soc": "RP2040",
      "gpio_header": "two 20-pin GPIO headers (unpopulated)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L429",
      "gpio_family": "microcontroller",
      "in_scope": false,
      "scope_note": "Pico family: microcontroller (GP0-GP28, ADC); out of scope for this round."
    },
    {
      "model": "Raspberry Pi Pico H",
      "series": "Pico microcontroller boards",
      "soc": "RP2040",
      "gpio_header": "two 20-pin GPIO headers",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L433",
      "gpio_family": "microcontroller",
      "in_scope": false,
      "scope_note": "Pico family: microcontroller (GP0-GP28, ADC); out of scope for this round."
    },
    {
      "model": "Raspberry Pi Pico W",
      "series": "Pico microcontroller boards",
      "soc": "RP2040",
      "gpio_header": "two 20-pin GPIO headers (unpopulated)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L437",
      "gpio_family": "microcontroller",
      "in_scope": false,
      "scope_note": "Pico family: microcontroller (GP0-GP28, ADC); out of scope for this round."
    },
    {
      "model": "Raspberry Pi Pico WH",
      "series": "Pico microcontroller boards",
      "soc": "RP2040",
      "gpio_header": "two 20-pin GPIO headers",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L444",
      "gpio_family": "microcontroller",
      "in_scope": false,
      "scope_note": "Pico family: microcontroller (GP0-GP28, ADC); out of scope for this round."
    },
    {
      "model": "Raspberry Pi Pico 2",
      "series": "Pico microcontroller boards",
      "soc": "RP2350",
      "gpio_header": "two 20-pin GPIO headers (unpopulated)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L451",
      "gpio_family": "microcontroller",
      "in_scope": false,
      "scope_note": "Pico family: microcontroller (GP0-GP28, ADC); out of scope for this round."
    },
    {
      "model": "Raspberry Pi Pico 2 W",
      "series": "Pico microcontroller boards",
      "soc": "RP2350",
      "gpio_header": "two 20-pin GPIO headers (unpopulated)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L455",
      "gpio_family": "microcontroller",
      "in_scope": false,
      "scope_note": "Pico family: microcontroller (GP0-GP28, ADC); out of scope for this round."
    },
    {
      "model": "Raspberry Pi Pico 2 with headers",
      "series": "Pico microcontroller boards",
      "soc": "RP2350",
      "gpio_header": "two 20-pin GPIO headers (unpopulated)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L461",
      "gpio_family": "microcontroller",
      "in_scope": false,
      "scope_note": "Pico family: microcontroller (GP0-GP28, ADC); out of scope for this round."
    },
    {
      "model": "Raspberry Pi Pico 2 W with headers",
      "series": "Pico microcontroller boards",
      "soc": "RP2350",
      "gpio_header": "two 20-pin GPIO headers (unpopulated)",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/introduction.adoc#L465",
      "gpio_family": "microcontroller",
      "in_scope": false,
      "scope_note": "Pico family: microcontroller (GP0-GP28, ADC); out of scope for this round."
    }
  ],
  "gpio_families": {
    "bcm2835": {
      "alt_functions": {
        "0": [
          "I2C0_SDA",
          "SA5",
          "PCLK",
          "AVEOUT_VCLK",
          "AVEIN_VCLK",
          null
        ],
        "1": [
          "I2C0_SCL",
          "SA4",
          "DE",
          "AVEOUT_DSYNC",
          "AVEIN_DSYNC",
          null
        ],
        "2": [
          "I2C1_SDA",
          "SA3",
          "LCD_VSYNC",
          "AVEOUT_VSYNC",
          "AVEIN_VSYNC",
          null
        ],
        "3": [
          "I2C1_SCL",
          "SA2",
          "LCD_HSYNC",
          "AVEOUT_HSYNC",
          "AVEIN_HSYNC",
          null
        ],
        "4": [
          "GPCLK[0]",
          "SA1",
          "DPI_D[0]",
          "AVEOUT_VID0",
          "AVEIN_VID0",
          "ARM_TDI"
        ],
        "5": [
          "GPCLK[1]",
          "SA0",
          "DPI_D[1]",
          "AVEOUT_VID1",
          "AVEIN_VID1",
          "ARM_TDO"
        ],
        "6": [
          "GPCLK[2]",
          "SOE_N_SE",
          "DPI_D[2]",
          "AVEOUT_VID2",
          "AVEIN_VID2",
          "ARM_RTCK"
        ],
        "7": [
          "SPI0_CSn[1]",
          "SWE_N_SRW_N",
          "DPI_D[3]",
          "AVEOUT_VID3",
          "AVEIN_VID3",
          null
        ],
        "8": [
          "SPI0_CSn[0]",
          "SD0",
          "DPI_D[4]",
          "AVEOUT_VID4",
          "AVEIN_VID4",
          null
        ],
        "9": [
          "SPI0_MISO",
          "SD1",
          "DPI_D[5]",
          "AVEOUT_VID5",
          "AVEIN_VID5",
          null
        ],
        "10": [
          "SPI0_MOSI",
          "SD2",
          "DPI_D[6]",
          "AVEOUT_VID6",
          "AVEIN_VID6",
          null
        ],
        "11": [
          "SPI0_SCLK",
          "SD3",
          "DPI_D[7]",
          "AVEOUT_VID7",
          "AVEIN_VID7",
          null
        ],
        "12": [
          "PWM0",
          "SD4",
          "DPI_D[8]",
          "AVEOUT_VID8",
          "AVEIN_VID8",
          "ARM_TMS"
        ],
        "13": [
          "PWM1",
          "SD5",
          "DPI_D[9]",
          "AVEOUT_VID9",
          "AVEIN_VID9",
          "ARM_TCK"
        ],
        "14": [
          "UART0_TX",
          "SD6",
          "DPI_D[10]",
          "AVEOUT_VID10",
          "AVEIN_VID10",
          "UART1_TX"
        ],
        "15": [
          "UART0_RX",
          "SD7",
          "DPI_D[11]",
          "AVEOUT_VID11",
          "AVEIN_VID11",
          "UART1_RX"
        ],
        "16": [
          "FL0",
          "SD8",
          "DPI_D[12]",
          "UART0_CTS",
          "SPI1_CSn[2]",
          "UART1_CTS"
        ],
        "17": [
          "FL1",
          "SD9",
          "DPI_D[13]",
          "UART0_RTS",
          "SPI1_CSn[1]",
          "UART1_RTS"
        ],
        "18": [
          "PCM_CLK",
          "SD10",
          "DPI_D[14]",
          "I2CSL_SDA_MOSI",
          "SPI1_CSn[0]",
          "PWM0"
        ],
        "19": [
          "PCM_FS",
          "SD11",
          "DPI_D[15]",
          "I2CSL_SCL_SCLK",
          "SPI1_MISO",
          "PWM1"
        ],
        "20": [
          "PCM_DIN",
          "SD12",
          "DPI_D[16]",
          "I2CSL_MISO",
          "SPI1_MOSI",
          "GPCLK[0]"
        ],
        "21": [
          "PCM_DOUT",
          "SD13",
          "DPI_D[17]",
          "I2CSL_CE_N",
          "SPI1_SCLK",
          "GPCLK[1]"
        ],
        "22": [
          "SDIO0_CLK",
          "SD14",
          "DPI_D[18]",
          "SDIO1_CLK",
          "ARM_TRST",
          null
        ],
        "23": [
          "SDIO0_CMD",
          "SD15",
          "DPI_D[19]",
          "SDIO1_CMD",
          "ARM_RTCK",
          null
        ],
        "24": [
          "SDIO0_DAT[0]",
          "SD16",
          "DPI_D[20]",
          "SDIO1_DAT[0]",
          "ARM_TDO",
          null
        ],
        "25": [
          "SDIO0_DAT[1]",
          "SD17",
          "DPI_D[21]",
          "SDIO1_DAT[1]",
          "ARM_TCK",
          null
        ],
        "26": [
          "SDIO0_DAT[2]",
          "TE0",
          "DPI_D[22]",
          "SDIO1_DAT[2]",
          "ARM_TDI",
          null
        ],
        "27": [
          "SDIO0_DAT[3]",
          "TE1",
          "DPI_D[23]",
          "SDIO1_DAT[3]",
          "ARM_TMS",
          null
        ]
      },
      "alt_functions_source": "https://github.com/raspberrypi/utils/blob/ebc4a56bac3a896d5c14e56fe27dcd6cb36dd373/pinctrl/gpiochip_bcm2835.c#L49",
      "socs": [
        "BCM2835",
        "BCM2836",
        "BCM2837",
        "BCM2837B0",
        "RP3A0"
      ],
      "default_pull_after_reset": {
        "0": "UP",
        "1": "UP",
        "2": "UP",
        "3": "UP",
        "4": "UP",
        "5": "UP",
        "6": "UP",
        "7": "UP",
        "8": "UP",
        "9": "DOWN",
        "10": "DOWN",
        "11": "DOWN",
        "12": "DOWN",
        "13": "DOWN",
        "14": "DOWN",
        "15": "DOWN",
        "16": "DOWN",
        "17": "DOWN",
        "18": "DOWN",
        "19": "DOWN",
        "20": "DOWN",
        "21": "DOWN",
        "22": "DOWN",
        "23": "DOWN",
        "24": "DOWN",
        "25": "DOWN",
        "26": "DOWN",
        "27": "DOWN"
      },
      "default_pull_source": "BCM2835 ARM Peripherals §6.2 (https://www.raspberrypi.org/app/uploads/2012/02/BCM2835-ARM-Peripherals.pdf)",
      "drive_strength_ma": [
        2,
        4,
        6,
        8,
        10,
        12,
        14,
        16
      ],
      "drive_strength_default_ma": 8,
      "drive_strength_source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-pad-controls.adoc#L92",
      "input_low_max_v": 0.9,
      "input_high_min_v": 1.6,
      "pull_resistor_kohm": [
        50,
        65
      ],
      "voltage_source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-on-raspberry-pi.adoc#L87",
      "hardware_pwm_channels": {
        "PWM0[0]": [
          12,
          18
        ],
        "PWM0[1]": [
          13,
          19
        ]
      },
      "hardware_pwm_gpios": [
        12,
        13,
        18,
        19
      ]
    },
    "bcm2711": {
      "alt_functions": {
        "0": [
          "I2C0_SDA",
          "SA5",
          "PCLK",
          "SPI3_CSn[0]",
          "UART2_TX",
          "I2C6_SDA"
        ],
        "1": [
          "I2C0_SCL",
          "SA4",
          "DE",
          "SPI3_MISO",
          "UART2_RX",
          "I2C6_SCL"
        ],
        "2": [
          "I2C1_SDA",
          "SA3",
          "LCD_VSYNC",
          "SPI3_MOSI",
          "UART2_CTS",
          "I2C3_SDA"
        ],
        "3": [
          "I2C1_SCL",
          "SA2",
          "LCD_HSYNC",
          "SPI3_SCLK",
          "UART2_RTS",
          "I2C3_SCL"
        ],
        "4": [
          "GPCLK[0]",
          "SA1",
          "DPI_D[0]",
          "SPI4_CSn[0]",
          "UART3_TX",
          "I2C3_SDA"
        ],
        "5": [
          "GPCLK[1]",
          "SA0",
          "DPI_D[1]",
          "SPI4_MISO",
          "UART3_RX",
          "I2C3_SCL"
        ],
        "6": [
          "GPCLK[2]",
          "SOE_N_SE",
          "DPI_D[2]",
          "SPI4_MOSI",
          "UART3_CTS",
          "I2C4_SDA"
        ],
        "7": [
          "SPI0_CSn[1]",
          "SWE_N_SRW_N",
          "DPI_D[3]",
          "SPI4_SCLK",
          "UART3_RTS",
          "I2C4_SCL"
        ],
        "8": [
          "SPI0_CSn[0]",
          "SD0",
          "DPI_D[4]",
          "I2CSL_CE_N",
          "UART4_TX",
          "I2C4_SDA"
        ],
        "9": [
          "SPI0_MISO",
          "SD1",
          "DPI_D[5]",
          "I2CSL_SDI_MISO",
          "UART4_RX",
          "I2C4_SCL"
        ],
        "10": [
          "SPI0_MOSI",
          "SD2",
          "DPI_D[6]",
          "I2CSL_SDA_MOSI",
          "UART4_CTS",
          "I2C5_SDA"
        ],
        "11": [
          "SPI0_SCLK",
          "SD3",
          "DPI_D[7]",
          "I2CSL_SCL_SCLK",
          "UART4_RTS",
          "I2C5_SCL"
        ],
        "12": [
          "PWM0[0]",
          "SD4",
          "DPI_D[8]",
          "SPI5_CSn[0]",
          "UART5_TX",
          "I2C5_SDA"
        ],
        "13": [
          "PWM0[1]",
          "SD5",
          "DPI_D[9]",
          "SPI5_MISO",
          "UART5_RX",
          "I2C5_SCL"
        ],
        "14": [
          "UART0_TX",
          "SD6",
          "DPI_D[10]",
          "SPI5_MOSI",
          "UART5_CTS",
          "UART1_TX"
        ],
        "15": [
          "UART0_RX",
          "SD7",
          "DPI_D[11]",
          "SPI5_SCLK",
          "UART5_RTS",
          "UART1_RX"
        ],
        "16": [
          null,
          "SD8",
          "DPI_D[12]",
          "UART0_CTS",
          "SPI1_CSn[2]",
          "UART1_CTS"
        ],
        "17": [
          null,
          "SD9",
          "DPI_D[13]",
          "UART0_RTS",
          "SPI1_CSn[1]",
          "UART1_RTS"
        ],
        "18": [
          "PCM_CLK",
          "SD10",
          "DPI_D[14]",
          "SPI6_CSn[0]",
          "SPI1_CSn[0]",
          "PWM0[0]"
        ],
        "19": [
          "PCM_FS",
          "SD11",
          "DPI_D[15]",
          "SPI6_MISO",
          "SPI1_MISO",
          "PWM0[1]"
        ],
        "20": [
          "PCM_DIN",
          "SD12",
          "DPI_D[16]",
          "SPI6_MOSI",
          "SPI1_MOSI",
          "GPCLK[0]"
        ],
        "21": [
          "PCM_DOUT",
          "SD13",
          "DPI_D[17]",
          "SPI6_SCLK",
          "SPI1_SCLK",
          "GPCLK[1]"
        ],
        "22": [
          "SDIO0_CLK",
          "SD14",
          "DPI_D[18]",
          "SDIO1_CLK",
          "ARM_TRST",
          "I2C6_SDA"
        ],
        "23": [
          "SDIO0_CMD",
          "SD15",
          "DPI_D[19]",
          "SDIO1_CMD",
          "ARM_RTCK",
          "I2C6_SCL"
        ],
        "24": [
          "SDIO0_DAT[0]",
          "SD16",
          "DPI_D[20]",
          "SDIO1_DAT[0]",
          "ARM_TDO",
          "SPI3_CSn[1]"
        ],
        "25": [
          "SDIO0_DAT[1]",
          "SD17",
          "DPI_D[21]",
          "SDIO1_DAT[1]",
          "ARM_TCK",
          "SPI4_CSn[1]"
        ],
        "26": [
          "SDIO0_DAT[2]",
          null,
          "DPI_D[22]",
          "SDIO1_DAT[2]",
          "ARM_TDI",
          "SPI5_CSn[1]"
        ],
        "27": [
          "SDIO0_DAT[3]",
          null,
          "DPI_D[23]",
          "SDIO1_DAT[3]",
          "ARM_TMS",
          "SPI6_CSn[1]"
        ]
      },
      "alt_functions_source": "https://github.com/raspberrypi/utils/blob/ebc4a56bac3a896d5c14e56fe27dcd6cb36dd373/pinctrl/gpiochip_bcm2835.c#L107",
      "socs": [
        "BCM2711"
      ],
      "default_pull_after_reset": {
        "0": "UP",
        "1": "UP",
        "2": "UP",
        "3": "UP",
        "4": "UP",
        "5": "UP",
        "6": "UP",
        "7": "UP",
        "8": "UP",
        "9": "DOWN",
        "10": "DOWN",
        "11": "DOWN",
        "12": "DOWN",
        "13": "DOWN",
        "14": "DOWN",
        "15": "DOWN",
        "16": "DOWN",
        "17": "DOWN",
        "18": "DOWN",
        "19": "DOWN",
        "20": "DOWN",
        "21": "DOWN",
        "22": "DOWN",
        "23": "DOWN",
        "24": "DOWN",
        "25": "DOWN",
        "26": "DOWN",
        "27": "DOWN"
      },
      "default_pull_source": "Compute Module 4 datasheet, 'GPIO pins alternative function assignment' (https://pip.raspberrypi.com/documents/RP-008168-DS-cm4-datasheet.pdf)",
      "drive_strength_note": "Same 8 register settings as BCM2835, but on 4-series devices the current level is half the value shown; default 4 mA, maximum 8 mA.",
      "drive_strength_default_ma": 4,
      "drive_strength_max_ma": 8,
      "drive_strength_source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-pad-controls.adoc#L9",
      "input_low_max_v": 0.8,
      "input_high_min_v": 2.0,
      "pull_resistor_kohm": [
        33,
        73
      ],
      "voltage_source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-on-raspberry-pi.adoc#L177",
      "hardware_pwm_channels": {
        "PWM0[0]": [
          12,
          18
        ],
        "PWM0[1]": [
          13,
          19
        ]
      },
      "hardware_pwm_gpios": [
        12,
        13,
        18,
        19
      ]
    },
    "rp1": {
      "alt_functions": {
        "0": [
          "SPI0_SIO[3]",
          "DPI_PCLK",
          "UART1_TX",
          "I2C0_SDA",
          null,
          "SYS_RIO[0]",
          "PROC_RIO[0]",
          "PIO[0]",
          "SPI2_CSn[0]"
        ],
        "1": [
          "SPI0_SIO[2]",
          "DPI_DE",
          "UART1_RX",
          "I2C0_SCL",
          null,
          "SYS_RIO[1]",
          "PROC_RIO[1]",
          "PIO[1]",
          "SPI2_SIO[1]"
        ],
        "2": [
          "SPI0_CSn[3]",
          "DPI_VSYNC",
          "UART1_CTS",
          "I2C1_SDA",
          "UART0_IR_RX",
          "SYS_RIO[2]",
          "PROC_RIO[2]",
          "PIO[2]",
          "SPI2_SIO[0]"
        ],
        "3": [
          "SPI0_CSn[2]",
          "DPI_HSYNC",
          "UART1_RTS",
          "I2C1_SCL",
          "UART0_IR_TX",
          "SYS_RIO[3]",
          "PROC_RIO[3]",
          "PIO[3]",
          "SPI2_SCLK"
        ],
        "4": [
          "GPCLK[0]",
          "DPI_D[0]",
          "UART2_TX",
          "I2C2_SDA",
          "UART0_RI",
          "SYS_RIO[4]",
          "PROC_RIO[4]",
          "PIO[4]",
          "SPI3_CSn[0]"
        ],
        "5": [
          "GPCLK[1]",
          "DPI_D[1]",
          "UART2_RX",
          "I2C2_SCL",
          "UART0_DTR",
          "SYS_RIO[5]",
          "PROC_RIO[5]",
          "PIO[5]",
          "SPI3_SIO[1]"
        ],
        "6": [
          "GPCLK[2]",
          "DPI_D[2]",
          "UART2_CTS",
          "I2C3_SDA",
          "UART0_DCD",
          "SYS_RIO[6]",
          "PROC_RIO[6]",
          "PIO[6]",
          "SPI3_SIO[0]"
        ],
        "7": [
          "SPI0_CSn[1]",
          "DPI_D[3]",
          "UART2_RTS",
          "I2C3_SCL",
          "UART0_DSR",
          "SYS_RIO[7]",
          "PROC_RIO[7]",
          "PIO[7]",
          "SPI3_SCLK"
        ],
        "8": [
          "SPI0_CSn[0]",
          "DPI_D[4]",
          "UART3_TX",
          "I2C0_SDA",
          null,
          "SYS_RIO[8]",
          "PROC_RIO[8]",
          "PIO[8]",
          "SPI4_CSn[0]"
        ],
        "9": [
          "SPI0_SIO[1]",
          "DPI_D[5]",
          "UART3_RX",
          "I2C0_SCL",
          null,
          "SYS_RIO[9]",
          "PROC_RIO[9]",
          "PIO[9]",
          "SPI4_SIO[0]"
        ],
        "10": [
          "SPI0_SIO[0]",
          "DPI_D[6]",
          "UART3_CTS",
          "I2C1_SDA",
          null,
          "SYS_RIO[10]",
          "PROC_RIO[10]",
          "PIO[10]",
          "SPI4_SIO[1]"
        ],
        "11": [
          "SPI0_SCLK",
          "DPI_D[7]",
          "UART3_RTS",
          "I2C1_SCL",
          null,
          "SYS_RIO[11]",
          "PROC_RIO[11]",
          "PIO[11]",
          "SPI4_SCLK"
        ],
        "12": [
          "PWM0[0]",
          "DPI_D[8]",
          "UART4_TX",
          "I2C2_SDA",
          "AUDIO_OUT_L",
          "SYS_RIO[12]",
          "PROC_RIO[12]",
          "PIO[12]",
          "SPI5_CSn[0]"
        ],
        "13": [
          "PWM0[1]",
          "DPI_D[9]",
          "UART4_RX",
          "I2C2_SCL",
          "AUDIO_OUT_R",
          "SYS_RIO[13]",
          "PROC_RIO[13]",
          "PIO[13]",
          "SPI5_SIO[1]"
        ],
        "14": [
          "PWM0[2]",
          "DPI_D[10]",
          "UART4_CTS",
          "I2C3_SDA",
          "UART0_TX",
          "SYS_RIO[14]",
          "PROC_RIO[14]",
          "PIO[14]",
          "SPI5_SIO[0]"
        ],
        "15": [
          "PWM0[3]",
          "DPI_D[11]",
          "UART4_RTS",
          "I2C3_SCL",
          "UART0_RX",
          "SYS_RIO[15]",
          "PROC_RIO[15]",
          "PIO[15]",
          "SPI5_SCLK"
        ],
        "16": [
          "SPI1_CSn[2]",
          "DPI_D[12]",
          "MIPI0_DSI_TE",
          null,
          "UART0_CTS",
          "SYS_RIO[16]",
          "PROC_RIO[16]",
          "PIO[16]"
        ],
        "17": [
          "SPI1_CSn[1]",
          "DPI_D[13]",
          "MIPI1_DSI_TE",
          null,
          "UART0_RTS",
          "SYS_RIO[17]",
          "PROC_RIO[17]",
          "PIO[17]"
        ],
        "18": [
          "SPI1_CSn[0]",
          "DPI_D[14]",
          "I2S0_SCLK",
          "PWM0[2]",
          "I2S1_SCLK",
          "SYS_RIO[18]",
          "PROC_RIO[18]",
          "PIO[18]",
          "GPCLK[1]"
        ],
        "19": [
          "SPI1_SIO[1]",
          "DPI_D[15]",
          "I2S0_WS",
          "PWM0[3]",
          "I2S1_WS",
          "SYS_RIO[19]",
          "PROC_RIO[19]",
          "PIO[19]"
        ],
        "20": [
          "SPI1_SIO[0]",
          "DPI_D[16]",
          "I2S0_SDI[0]",
          "GPCLK[0]",
          "I2S1_SDI[0]",
          "SYS_RIO[20]",
          "PROC_RIO[20]",
          "PIO[20]"
        ],
        "21": [
          "SPI1_SCLK",
          "DPI_D[17]",
          "I2S0_SDO[0]",
          "GPCLK[1]",
          "I2S1_SDO[0]",
          "SYS_RIO[21]",
          "PROC_RIO[21]",
          "PIO[21]"
        ],
        "22": [
          "SDIO0_CLK",
          "DPI_D[18]",
          "I2S0_SDI[1]",
          "I2C3_SDA",
          "I2S1_SDI[1]",
          "SYS_RIO[22]",
          "PROC_RIO[22]",
          "PIO[22]"
        ],
        "23": [
          "SDIO0_CMD",
          "DPI_D[19]",
          "I2S0_SDO[1]",
          "I2C3_SCL",
          "I2S1_SDO[1]",
          "SYS_RIO[23]",
          "PROC_RIO[23]",
          "PIO[23]"
        ],
        "24": [
          "SDIO0_DAT[0]",
          "DPI_D[20]",
          "I2S0_SDI[2]",
          null,
          "I2S1_SDI[2]",
          "SYS_RIO[24]",
          "PROC_RIO[24]",
          "PIO[24]",
          "SPI2_CSn[1]"
        ],
        "25": [
          "SDIO0_DAT[1]",
          "DPI_D[21]",
          "I2S0_SDO[2]",
          "AUDIO_IN_CLK",
          "I2S1_SDO[2]",
          "SYS_RIO[25]",
          "PROC_RIO[25]",
          "PIO[25]",
          "SPI3_CSn[1]"
        ],
        "26": [
          "SDIO0_DAT[2]",
          "DPI_D[22]",
          "I2S0_SDI[3]",
          "AUDIO_IN_DAT0",
          "I2S1_SDI[3]",
          "SYS_RIO[26]",
          "PROC_RIO[26]",
          "PIO[26]",
          "SPI5_CSn[1]"
        ],
        "27": [
          "SDIO0_DAT[3]",
          "DPI_D[23]",
          "I2S0_SDO[3]",
          "AUDIO_IN_DAT1",
          "I2S1_SDO[3]",
          "SYS_RIO[27]",
          "PROC_RIO[27]",
          "PIO[27]",
          "SPI1_CSn[1]"
        ]
      },
      "alt_functions_source": "https://github.com/raspberrypi/utils/blob/ebc4a56bac3a896d5c14e56fe27dcd6cb36dd373/pinctrl/gpiochip_rp1.c#L83",
      "socs": [
        "BCM2712 + RP1"
      ],
      "default_pull_after_reset": null,
      "default_pull_note": "Not stated per pin (spec decision D-05); never used in labels.",
      "drive_strength_ma": [
        2,
        4,
        8,
        12
      ],
      "drive_strength_default_ma": 4,
      "drive_strength_source": "spec/rpi5_hardware_facts.json F-DRIVE-STRENGTH (RP1 datasheet §3.1.3)",
      "hardware_pwm_channels": {
        "PWM0[0]": [
          12
        ],
        "PWM0[1]": [
          13
        ],
        "PWM0[2]": [
          14,
          18
        ],
        "PWM0[3]": [
          15,
          19
        ]
      },
      "hardware_pwm_gpios": [
        12,
        13,
        14,
        15,
        18,
        19
      ]
    }
  },
  "common_40pin": {
    "gpio_output_levels": {
      "value": "high 3.3 V / low 0 V",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-on-raspberry-pi.adoc#L18"
    },
    "fixed_pull_up": {
      "value": [
        2,
        3
      ],
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-on-raspberry-pi.adoc#L22"
    },
    "reserved": {
      "value": [
        0,
        1
      ],
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-on-raspberry-pi.adoc#L14"
    },
    "power_on_state": {
      "value": "all GPIOs are inputs after power-on reset; default pulls applied",
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-on-raspberry-pi.adoc#L51"
    },
    "drive_is_not_current_limit": {
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-pad-controls.adoc#L17"
    },
    "short_circuit_fails": {
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-pad-controls.adoc#L26"
    },
    "safe_current_16ma": {
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-pad-controls.adoc#L46"
    },
    "supply_3v3_about_3ma_per_pin": {
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-pad-controls.adoc#L42"
    },
    "warnings": {
      "value": [
        "LEDs need current-limiting resistors",
        "do not use 5V for 3.3V components",
        "do not connect motors directly; use an H-bridge or motor controller"
      ],
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-on-raspberry-pi.adoc#L28"
    },
    "software_pwm_all_pins": {
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-on-raspberry-pi.adoc#L72"
    },
    "header_alt_summary": {
      "source": "https://github.com/raspberrypi/documentation/blob/ecd7a8129d4f2cb908d6cbd6ea5a994e0091285d/documentation/asciidoc/computers/raspberry-pi/gpio-on-raspberry-pi.adoc#L75"
    }
  },
  "verification": {
    "rp1_pinctrl_vs_frozen_spec": "252/252 cells equal after name normalisation",
    "bcm2711_pinctrl_vs_cm4_datasheet": "168/168 cells equal in substance (4 differ only as BSCSL vs I2CSL naming)",
    "bcm2835_pinctrl_vs_bcm2835_datasheet": "36/36 I2C/SPI/UART/PWM/GPCLK/PCM cells equal (datasheet ALT2 column empty in the 2012 edition; OCR artefacts corrected)"
  }
}