import { ESPLoader } from "../esploader.js";
import { ESP32H2ROM } from "./esp32h2.js";
export declare class ESP32H21ROM extends ESP32H2ROM {
    CHIP_NAME: string;
    IMAGE_CHIP_ID: number;
    USES_MAGIC_VALUE: boolean;
    UF2_FAMILY_ID: number;
    DR_REG_LP_WDT_BASE: number;
    RTC_CNTL_WDTCONFIG0_REG: number;
    RTC_CNTL_WDTWPROTECT_REG: number;
    RTC_CNTL_SWD_CONF_REG: number;
    RTC_CNTL_SWD_AUTO_FEED_EN: number;
    RTC_CNTL_SWD_WPROTECT_REG: number;
    RTC_CNTL_SWD_WKEY: number;
    EFUSE_BASE: number;
    EFUSE_BLOCK1_ADDR: number;
    MAC_EFUSE_REG: number;
    EFUSE_RD_REG_BASE: number;
    EFUSE_PURPOSE_KEY0_REG: number;
    EFUSE_PURPOSE_KEY0_SHIFT: number;
    EFUSE_PURPOSE_KEY1_REG: number;
    EFUSE_PURPOSE_KEY1_SHIFT: number;
    EFUSE_PURPOSE_KEY2_REG: number;
    EFUSE_PURPOSE_KEY2_SHIFT: number;
    EFUSE_PURPOSE_KEY3_REG: number;
    EFUSE_PURPOSE_KEY3_SHIFT: number;
    EFUSE_PURPOSE_KEY4_REG: number;
    EFUSE_PURPOSE_KEY4_SHIFT: number;
    EFUSE_PURPOSE_KEY5_REG: number;
    EFUSE_PURPOSE_KEY5_SHIFT: number;
    EFUSE_DIS_DOWNLOAD_MANUAL_ENCRYPT_REG: number;
    EFUSE_DIS_DOWNLOAD_MANUAL_ENCRYPT: number;
    EFUSE_SPI_BOOT_CRYPT_CNT_REG: number;
    EFUSE_SPI_BOOT_CRYPT_CNT_MASK: number;
    EFUSE_SECURE_BOOT_EN_REG: number;
    EFUSE_SECURE_BOOT_EN_MASK: number;
    KEY_PURPOSES: {
        [key: number]: string;
    };
    getPkgVersion(loader: ESPLoader): Promise<number>;
    getMinorChipVersion(loader: ESPLoader): Promise<number>;
    getMajorChipVersion(loader: ESPLoader): Promise<number>;
    getChipRevision(loader: ESPLoader): Promise<number>;
    getChipDescription(loader: ESPLoader): Promise<string>;
    getChipFeatures(loader: ESPLoader): Promise<string[]>;
    getCrystalFreq(loader: ESPLoader): Promise<number>;
    checkSpiConnection(loader: ESPLoader, spiConnection: number[]): void;
}