SOC_IRAM_LOW = 0x40020000
SOC_IRAM_HIGH = 0x40070000
SOC_DRAM_LOW = 0x3ffb0000
SOC_DRAM_HIGH = 0x40000000
SOC_RTC_DRAM_LOW = 0x3ff9e000
SOC_RTC_DRAM_HIGH = 0x3ffa0000
SOC_RTC_DATA_LOW = 0x50000000
SOC_RTC_DATA_HIGH = 0x50002000