SOC (System on Chip) chip and control method thereof

Abstract

The invention discloses an SOC (System on Chip) chip and a control method thereof, which is applied to an LCD TV (Liquid Crystal Display Television) system. The SOC chip comprises a microprocessor, a read-only memory, a random access memory, a controller and a nonvolatile memory, wherein the controller controls the operation of the whole chip; the read-only memory stores a boot program; the random access memory stores intermediate data; the nonvolatile memory stores a main program and various application programs; and the controller controls storage of data in the nonvolatile memory. The random access memory comprises a main program space and an application program space, the main program space is used for storing the main program, and the application program space is used for storing the application programs. By adopting the SOC architecture of the invention, functions of a plurality of application programs can be realized by successively calling the application programs in the nonvolatile memory to the random access memory for operation, and the effect of complex system control functions can be realized with a smaller system internal random access memory space.

Description

technical field [0001] The invention relates to a control chip, in particular to a control chip of an LCD TV system and a control method thereof. Background technique [0002] In a general SOC (system on chip) system, due to the control area cost, the RAM (random access memory) space inside the system is relatively small, generally a few KB, and in the face of increasingly complex control system functions, the RAM space size is A few KB are far from meeting the needs of system control. [0003] figure 1 It is an SOC system in the prior art, which includes a microprocessor 1 , a read only memory 2 (ROM, readonly memory), and a random access memory 3 . The microprocessor 1 controls the operation of the entire system chip, and the ROM 2 is solidified with a boot program or some application programs. When the SOC chip system starts to work, the read-only memory uses the boot program to initialize the entire device and load some basic application programs into the random acces...

AI Technical Summary

Problems solved by technology

But this kind of SOC system chip with external flash memory 4 generally needs a larger system internal random access memory to run the operating system or application program, and still cannot execute multiple or multi-level operations only through the smaller random access memory of the system internal space. operation of the secondary application

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