import { ESPLoader } from "../esploader.js";
/**
 * Represents a chip ROM with basic registers field and abstract functions.
 */
export declare abstract class ROM {
    /**
     * Read ESP32 eFuse.
     * @param {ESPLoader} loader - Loader class to communicate with chip.
     * @param {number} offset - Offset to start erase.
     * @returns {number} The eFuse number.
     */
    protected readEfuse?(loader: ESPLoader, offset: number): Promise<number>;
    /**
     * Get the package version number.
     * @param {ESPLoader} loader - Loader class to communicate with chip.
     * @returns {number} The package version number.
     */
    protected getPkgVersion?(loader: ESPLoader): Promise<number>;
    /**
     * Get the chip revision number.
     * @param {ESPLoader} loader - Loader class to communicate with chip.
     * @returns {number} The chip revision number.
     */
    protected getChipRevision?(loader: ESPLoader): Promise<number>;
    /**
     * Get the chip description.
     * @param {ESPLoader} loader - Loader class to communicate with chip.
     * @returns {string} The chip description as string.
     */
    abstract getChipDescription(loader: ESPLoader): Promise<string>;
    /**
     * Get the chip features.
     * @param {ESPLoader} loader - Loader class to communicate with chip.
     * @returns {string} The chip features as string.
     */
    abstract getChipFeatures(loader: ESPLoader): Promise<string[]>;
    /**
     * Get the crystal frequency for the chip.
     * @param {ESPLoader} loader - Loader class to communicate with chip.
     * @returns {string} The crystal frequency as number.
     */
    abstract getCrystalFreq(loader: ESPLoader): Promise<number>;
    /**
     * Convert a number to hex string.
     * @param {number} d - Number to convert to hex string.
     * @returns {string} The hex string.
     */
    abstract _d2h(d: number): string;
    /**
     * Get the chip mac address.
     * @param {ESPLoader} loader - Loader class to communicate with chip.
     * @returns {string} The mac address string.
     */
    abstract readMac(loader: ESPLoader): Promise<string>;
    /**
     * Function to be executed after chip connection
     * @param {ESPLoader} loader - Loader class to communicate with chip.
     */
    postConnect?(loader: ESPLoader): Promise<void>;
    /**
     * Get the chip erase size.
     * @param {number} offset - Offset to start erase.
     * @param {number} size - Size to erase.
     * @returns {number} The erase size of the chip as number.
     */
    getEraseSize(offset: number, size: number): number;
    abstract FLASH_SIZES: {
        [key: string]: number;
    };
    abstract BOOTLOADER_FLASH_OFFSET: number;
    abstract CHIP_NAME: string;
    abstract FLASH_WRITE_SIZE: number;
    abstract SPI_MOSI_DLEN_OFFS: number;
    abstract SPI_MISO_DLEN_OFFS: number;
    abstract SPI_REG_BASE: number;
    abstract SPI_USR_OFFS: number;
    abstract SPI_USR1_OFFS: number;
    abstract SPI_USR2_OFFS: number;
    abstract SPI_W0_OFFS: number;
    abstract UART_CLKDIV_MASK: number;
    abstract UART_CLKDIV_REG: number;
    abstract UART_DATE_REG_ADDR: number;
}