Chip and method for acquiring debug data of chip

Embodiments of the present invention disclose a chip and a method for determining debug data of the chip. The method comprises: when determining that a chip is in a deadlock state, a chip master control module triggers an IO control module to control a DDR storage unit to perform self-refreshing by forcibly changing an IO level state of the DDR storage unit; the chip master control module controls the chip to be reset in a preset reset sequence according to a reset request command received by the IO control module; a DDR control and interface module configures an access channel of the DDR storage unit according to a pre-stored training parameter in a DDR training parameter saving module after reset, and sends a stop self-refreshing control instruction to the IO control module after configuration is completed; and the chip master control module calls the DDR control and interface module from a main data channel of the chip according to a preset debug policy to access the DDR storage unit by means of the IO con