.. This file gets included from other .rst files in this folder.
.. It contains target-specific snippets.
.. Comments and '---' lines act as delimiters.
..
.. This is necessary mainly because RST doesn't support substitutions
.. (defined in RST, not in Python) inside code blocks. If that is ever implemented,
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.. gpio-summary

{IDF_TARGET_NAME} 芯片具有 55 个物理 GPIO 管脚（GPIO0 ~ GPIO54）。

每个管脚都可用作一个通用 IO，或连接一个内部的外设信号。通过 GPIO 交换矩阵和 IO MUX，可配置外设模块的输入信号来源于任何的 IO 管脚，并且外设模块的输出信号也可连接到任意 IO 管脚。这些模块共同组成了芯片的 IO 控制。更多详细信息，请参阅 *{IDF_TARGET_NAME} 技术参考手册* > *IO MUX 和 GPIO 矩阵（GPIO、IO_MUX）* [`PDF <{IDF_TARGET_TRM_CN_URL}#iomuxgpio>`__]。

下表提供了各管脚的详细信息，部分 GPIO 具有特殊的使用限制，具体可参考表中的注释列。

.. list-table::
    :header-rows: 1
    :widths: 8 12 12 20

    * - GPIO
      - 模拟功能
      - LP GPIO
      - 注释

    * - GPIO0
      -
      - LP_GPIO0
      -

    * - GPIO1
      -
      - LP_GPIO1
      -

    * - GPIO2
      - TOUCH0
      - LP_GPIO2
      -

    * - GPIO3
      - TOUCH1
      - LP_GPIO3
      -

    * - GPIO4
      - TOUCH2
      - LP_GPIO4
      -

    * - GPIO5
      - TOUCH3
      - LP_GPIO5
      -

    * - GPIO6
      - TOUCH4
      - LP_GPIO6
      -

    * - GPIO7
      - TOUCH5
      - LP_GPIO7
      -

    * - GPIO8
      - TOUCH6
      - LP_GPIO8
      -

    * - GPIO9
      - TOUCH7
      - LP_GPIO9
      -

    * - GPIO10
      - TOUCH8
      - LP_GPIO10
      -

    * - GPIO11
      - TOUCH9
      - LP_GPIO11
      -

    * - GPIO12
      - TOUCH10
      - LP_GPIO12
      -

    * - GPIO13
      - TOUCH11
      - LP_GPIO13
      -

    * - GPIO14
      - TOUCH12
      - LP_GPIO14
      -

    * - GPIO15
      - TOUCH13
      - LP_GPIO15
      -

    * - GPIO16
      - ADC1_CH0
      -
      -

    * - GPIO17
      - ADC1_CH1
      -
      -

    * - GPIO18
      - ADC1_CH2
      -
      -

    * - GPIO19
      - ADC1_CH3
      -
      -

    * - GPIO20
      - ADC1_CH4
      -
      -

    * - GPIO21
      - ADC1_CH5
      -
      -

    * - GPIO22
      - ADC1_CH6
      -
      -

    * - GPIO23
      - ADC1_CH7
      -
      -

    * - GPIO24
      -
      -
      -

    * - GPIO25
      -
      -
      -

    * - GPIO26
      -
      -
      -

    * - GPIO27
      -
      -
      -

    * - GPIO28
      -
      -
      -

    * - GPIO29
      -
      -
      -

    * - GPIO30
      -
      -
      -

    * - GPIO31
      -
      -
      -

    * - GPIO32
      -
      -
      -

    * - GPIO33
      -
      -
      -

    * - GPIO34
      -
      -
      - Strapping 管脚

    * - GPIO35
      -
      -
      - Strapping 管脚

    * - GPIO36
      -
      -
      - Strapping 管脚

    * - GPIO37
      -
      -
      - Strapping 管脚

    * - GPIO38
      -
      -
      - Strapping 管脚

    * - GPIO39
      -
      -
      -

    * - GPIO40
      -
      -
      -

    * - GPIO41
      -
      -
      -

    * - GPIO42
      -
      -
      -

    * - GPIO43
      -
      -
      -

    * - GPIO44
      -
      -
      -

    * - GPIO45
      -
      -
      -

    * - GPIO46
      -
      -
      -

    * - GPIO47
      -
      -
      -

    * - GPIO48
      -
      -
      -

    * - GPIO49
      - ADC1_CH8
      -
      -

    * - GPIO50
      - ADC1_CH9
      -
      -

    * - GPIO51
      - ADC1_CH10，ANA_CMPR_CH0 外部参考电压
      -
      -

    * - GPIO52
      - ADC1_CH11，ANA_CMPR_CH0 同相输入
      -
      -

    * - GPIO53
      - ADC1_CH12，ANA_CMPR_CH1 外部参考电压
      -
      -

    * - GPIO54
      - ADC1_CH13，ANA_CMPR_CH1 同相输入
      -
      -

.. note::

    - Strapping 管脚：GPIO34, GPIO35、GPIO36、GPIO37 和 GPIO38 是 Strapping 管脚。更多信息请参考 `ESP32-P4 技术规格书 <{IDF_TARGET_DATASHEET_CN_URL}>`_。
    - USB-JTAG：GPIO24 和 GPIO25 默认用于 USB-JTAG。用做 GPIO 时驱动程序将禁用 USB-JTAG。

---