Renesas Electronics Corporation

Tetsuji Tsuda

Yuki Inoue

Masaru Hase

Katsushige Matsubara

Naohiro Nishikawa

Seiji Mochizuki

Yoshiyuki Ito

Ren Imaoka

Teruki Fukuyama

Takahiro Irita

Toshiyuki Kaya

Ryoji Hashimoto

Kimihiko Nakazawa

Yutaka Funabashi

Toshio Sunami

Saika Arai

A storage device stores a source code and a model created by referencing a source code. A processor generates a terminal generation setting file in which a terminal of a code block is written, by searching a terminal block included in the model read from the storage device and defining the terminal of the code block based on the terminal block obtained from a search result of the terminal block. Further, the processor writes, in the code block, a terminal linking code indicating a correspondence relationship between the terminal written in the terminal generation setting file and the source code. Furthermore, the processor compiles, using the terminal generation setting file, the code block in which the terminal linking code is written into a format executable in the model execution environment.

Support apparatus and design support method

A program is executed in an information processing device including a processor and a memory. The program allows the processor to execute a step of, on the basis of a simulation result of a model in the case where a series of blocks having an input block, one or more operation blocks, and an output block are allowed to operate at a predetermined clock frequency, deciding a new clock frequency of a target block that is allowed to operate at a clock frequency lower than the predetermined clock frequency, and a step of setting the conversion ratios of conversion blocks so as to execute a simulation of the model in which the target block is allowed to operate at the new clock frequency lower than the predetermined clock frequency and the remaining blocks are allowed to operate at the predetermined clock frequency.

Program, information processing device, and information processing method

An interference of control signals is caused by a deviation in the start timings of counting between counters of timer counter units of a first MCU and a second MCU. And thus, when a count value of the counter of the MCU of a parent reaches a predetermined value D, the MCU of the parent transmits a trigger signal to the MCU of a child. The MCU of the child obtains the time difference between the start timings of the counts of the counters of the parent and the child from the difference between the D and a count value E of the child at that time. A count period of the child until a maximum value of the count value is reached is adjusted by the time difference.

Semiconductor device, control device and control method

In a semiconductor device, a load of CPU required for arbitration when using a shared resource is reduced. The semiconductor device includes a CPU section and a hardware IP. In the CPU section, software modules are executed. The hardware IP includes a storage unit, an arbitration unit, and a calculation unit. The storage unit includes control receiving units that receive operation requests transmitted by the software modules, respectively. The calculation unit performs processing based on an operation request transmitted from the control receiving units. The arbitration unit controls information transmission between the control receiving units and the calculation unit so that the calculation unit receives only an operation request from any one of the control receiving units.

Semiconductor device and control method of semiconductor device

A semiconductor device includes a plurality of IP cores, a plurality of storage devices, a configuration information acquiring unit that acquires configuration information for specifying a timing when the IP core accesses the storage device, and an allocation determining unit that determines the storage device allocated to the IP core. The configuration information acquiring unit acquires configuration information regarding a first IP core and configuration information regarding a second IP core. The allocation determining unit determines, based on the configuration information, whether an access timing by the first IP core is the same as an access timing by the second IP core, and when it is determined that the access timings are the same, determines allocation in such a way that the storage device allocated to the first IP core becomes different from the storage device allocated to the second IP core.

Semiconductor device, allocation method, and display system

Disclosed is a semiconductor device capable of performing compression and decompression with increased appropriateness. The semiconductor device includes a computing module and a memory control module. The computing module includes a computing unit and a compression circuit. The computing unit performs arithmetic processing. The compression circuit compresses data indicative of the result of arithmetic processing. The memory control module includes an access circuit and a decompression circuit. The access circuit writes compressed data into a memory and reads written data from the memory. The decompression circuit decompresses data read from the memory and outputs the decompressed data to the computing module.

Semiconductor device, data processing system, and semiconductor device control method

A semiconductor device includes a central processing unit and a processor on one semiconductor substrate. The processor includes a buffer for storing a first register setting list and notifies the central processing unit of an access complete signal indicating completion of reading a second register setting list within a memory. The central processing unit changes the second register setting list within the memory based on the access complete signal and notifies the processor of an update request signal. The processor reads the second register setting list changed by the central processing unit into the buffer to update the first register setting list based on the update request information.

Semiconductor device

A processor system () includes: a first memory controller () that controls writing/reading data to/from a first memory (); a second memory controller () that controls writing/reading data to/from a second memory (); a first processor () that inputs and outputs the data from and to the first memory through a bus (); a second processor () that inputs and outputs processed data from and to the second memory through the bus; and a management unitthat deallocates an address range corresponding to the second memory from the first process and allocates the address range to the second processor.

System and method for allocating and deallocating an address range corresponding to a first and a second memory between processors

A semiconductor device includes a central processing unit and a processor on one semiconductor substrate. The processor includes a buffer for storing a register setting list and notifies the central processing unit of an access complete signal indicating completion of reading the register setting list. The central processing unit changes the register setting list within a memory based on the access complete signal and notifies the processor of an update request signal. The processor reads the register setting list changed by the central processing unit into the buffer based on the update request information.

System on a chip including a management unit for allocating and deallocating an address range

Semiconductor apparatus, processor system, and control method for deallocating and allocating an address range corresponding to a memory between different processors of the processor system

Growing community of inventors

Tokyo, Japan

Tetsuji Tsuda