tinyriscv/rtl/perips/gpio/gpio.hjson

// Copyright lowRISC contributors.
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
// SPDX-License-Identifier: Apache-2.0
{ name: "gpio",
  clocking: [{clock: "clk_i", reset: "rst_ni"}],
  bus_interfaces: [
    { protocol: "tlul", direction: "device" }
  ],
  regwidth: "32",
  registers: [
    { name: "IO_MODE",
      desc: "gpio input/output mode register",
      swaccess: "rw",
      hwaccess: "hro",
      fields: [
        { bits: "31:0",
          desc: "gpio input or output mode, 2 bits for each gpio",
        }
      ]
    }
    { name: "INT_MODE",
      desc: "gpio interrupt mode register",
      swaccess: "rw",
      hwaccess: "hro",
      fields: [
        { bits: "31:0",
          desc: "gpio interrupt mode, 2 bits for each gpio",
        }
      ]
    }
    { name: "INT_PENDING",
      desc: "gpio interrupt pending register",
      swaccess: "rw",
      hwaccess: "hrw",
      fields: [
        { bits: "15:0",
          name: "GPIO_INT_PENDING",
          swaccess: "rw1c",
          desc: "gpio interrupt pending, 1 bits for each gpio",
        }
      ]
    }
    { name: "DATA",
      desc: "gpio data register",
      swaccess: "rw",
      hwaccess: "hrw",
      fields: [
        { bits: "15:0",
          desc: "gpio input or output data, 1 bits for each gpio",
        }
      ]
    }
    { name: "FILTER",
      desc: "gpio input filter enable register",
      swaccess: "rw",
      hwaccess: "hro",
      fields: [
        { bits: "15:0",
          desc: "gpio input filter enable, 1 bits for each gpio",
        }
      ]
    }
  ]
}