The present invention discloses a
chip structure and a
chip function control method, wherein the
chip structure includes a programmable register circuit, a latch circuit, a core circuit, and a
multiplexer circuit. The programmable register circuit and the latch circuit are located in a first power domain. When the first power domain is activated, the latch circuit is driven to read a set value to generate a latch
signal. The core circuit and the
multiplexer circuit are located in a second power domain. The activation timing of the first power domain is earlier than the activation timing of the second power domain. When the second power domain is activated, the
multiplexer circuit receives the latch
signal and outputs a function
signal to the core circuit from the output end. The present invention can improve the efficiency and convenience of chip development, enhance the flexibility of chip function design, reduce the
power consumption of the battery power supply, and increase the service life of the chip.