Abstract: Disclosed is a method and apparatus of a code read only memory (ROM) data capable of protecting code ROM data is easily read and plagiarized in field in case of testing a code ROM built-in a microcontrol unit (MCU) The apparatus for protecting data outputted from a code ROM has: a first encryptor for encrypting data outputted from the code ROM; a second encryptor for generating a read enable signal through an encryption process; and an output unit for dumping out the encrypted data outputted from the first encryptor in response to the read enable signal outputted from the second encryptor.

Abstract: In a memory within a micro controller, a method for addressing a page for inputting and outputting the page data on a bus. The method includes steps of producing a first control signal activated at a data update mode in which a read or write operation is executed, and determining in response to the first control signal whether the read or write operation is executed for the same page or a different page.

Abstract: The present invention relates to a micro controller development system (MDS) capable of helping a development of hardware and related software of a micro control unit (MCU).

Abstract: A method for generating a register transfer level code, comprising the steps of: generating the generalized register transfer level code without considering process conditions; separating all logic gates into either a combinational logic circuit or a sequential logic circuit; transforming the register transfer level code of the separated combinational logic circuits and sequential logic circuits into each equivalent register transfer level code; and simplifying the combinational logic circuits and the sequential logic circuits into one simple code.

Abstract: Disclosed is a microcontroller, comprising: a clock input pin, wherein an input signal from the external circuit is inputted; a clock generator for generating a clock signal by receiving a signal from the clock input pin; a clock output pin for receiving an output signal of the clock generating means and outputting the output signal; a first switch for transmitting an internal signal of a microcontroller to the clock output pin for using the clock output pin is in a system mode; and a second switch, which is enabled when the clock generating means is operated in the clock generation mode and disabled when the microcontroller is operated in the system mode.

Abstract: In a memory within a micro controller, a method for addressing a page for inputting and outputting the page data on a bus. The method includes steps of producing a first control signal activated at a data update mode in which a read or write operation is executed, and determining in response to the first control signal whether the read or write operation is executed for the same page or a different page.

Abstract: A method for generating a register transfer level code, comprising the steps of: generating the generalized register transfer level code without considering process conditions; separating all logic gates into either a combinational logic circuit or a sequential logic circuit; transforming the register transfer level code of the separated combinational logic circuits and sequential logic circuits into each equivalent register transfer level code; and simplifying the combinational logic circuits and the sequential logic circuits into one simple code.

Abstract: Disclosed is a method and apparatus of a code read only memory (ROM) data capable of protecting code ROM data is easily read and plagiarized in field in case of testing a code ROM built-in a microcontrol unit (MCU) The apparatus for protecting data outputted from a code ROM has: a first encryptor for encrypting data outputted from the code ROM; a second encryptor for generating a read enable signal through an encryption process; and an output unit for dumping out the encrypted data outputted from the first encryptor in response to the read enable signal outputted from the second encryptor.

Abstract: The present invention relates to a micro controller development system (MDS) capable of helping a development of hardware and related software of a micro control unit (MCU).

Abstract: An apparatus is provided for effectively supporting a microprocessor development system by using a single chip without designing an evaluation chip. The apparatus includes a microprocessor control unit (MCU) chip for communicating data and control signals with respect to a target board through a multiplicity of ports, and for providing RAM addresses, a special function register (SFR) address and data. The apparatus also includes an input/output block for receiving the addresses and the data through the ports, for providing the received data to the target board, and for controlling data to be inputted in the MCU chip.

Abstract: A chip verification method by comparing internal state traces of chips having various functions, which is capable of reducing the overall chip designing and verifying time and attaining a more exact verification.

Abstract: An analog-to-digital converter is provided. The analog-to-digital converter capable of increasing the processing speed of the converter by using a number of SAR registers.

Abstract: To provide a branch prediction apparatus and its method that accesses BTB using IP of an instruction whose interval between the branch instruction is the smallest, on the basis of a branch instruction's fetch among the instructions that can be fetched prior to one cycle, and also that fetches the branch target after N cycle, after BTB accessing, storing the information of the cycle interval N1 between the branch access instruction and branch instruction inside BTB entry.