R61509V

Target Spec

Interface and Data Format

The R61509V supports system interface for making instruction and other settings, and external display interface for displaying a moving picture. The R61509V can select the optimum interface for the display (moving or still picture) in order to transfer data efficiently.

As external display interface, the R61509V supports RGB interface and VSYNC interface, which enables data rewrite operation without flickering the moving picture on display.

In RGB interface operation, the display operation is executed in synchronization with synchronous signals VSYNCX, HSYNCX, and DOTCLK. In synchronization with these signals, the R61509V writes display data according to data enable signal (ENABLE) via RGB data signal bus (DB17-0). The display data is stored in the R61509V’s GRAM so that data is transferred only when rewriting the frames of moving picture and the data transfer required for moving picture display can be minimized. The window address function specifies the RAM area to write data for moving picture display, which enables displaying a moving picture and RAM data in other than the moving picture area simultaneously. To access the R61509V’s internal RAM in high speed with low power consumption, use high-speed write function (HWM = 1) in RGB or VSYNC interface operation.

In VSYNC interface operation, the internal display operation is synchronized with the frame synchronization signal (VSYNCX). The VSYNC interface enables a moving picture display via system interface by writing the data to the GRAM at faster than the minimum calculated speed in synchronization with the falling edge of VSYNCX. In this case, there are restrictions in setting the frequency and the method to write data to the internal RAM.

The R61509V operates in either one of the following four modes according to the state of the display. The operation mode is set in the external display interface control register (R0Ch). When switching from one mode to another, make sure to follow the relevant sequence in setting instruction bits.

Table 56 Operation Modes

Operation Mode

RAM Access Setting (RM)

Display Operation Mode (DM)

Internal clock operation

System interface

Internal clock operation

(displaying still pictures)

(RM = 0)

(DM1-0 = 00)

RGB interface (1)

RGB interface

RGB interface

(displaying moving pictures)

(RM = 1)

(DM1-0 = 01)

RGB interface (2)

System interface

RGB interface

(rewriting still pictures while

(RM = 0)

(DM1-0 = 01)

displaying moving pictures)

 

 

VSYNC interface

System interface

VSYNC interface

(displaying moving pictures)

(RM = 0)

(DM1-0 = 10)

Notes: 1. Instructions are set only via system interface.

2.When RGB interface is used, instructions should be transferred via clock synchronous serial interface.

3.RGB and VSYNC interfaces cannot be used simultaneously.

4.Do not make changes to the RGB interface operation setting (RIM1-0) while RGB interface is in operation.

5.See the “External Display Interface” section for the sequences when switching from one mode to another.

Rev. 0.11 April 25, 2008, page 96 of 181

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Renesas R61509V manual Interface and Data Format, Operation Modes
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R61509V specifications

The Renesas R61509V is a versatile and advanced display controller designed to manage graphical user interfaces in various electronic devices. This controller is particularly popular among manufacturers of consumer electronics due to its rich feature set and efficient performance. The R61509V is known for its compatibility with a range of display technologies including LCD and OLED, making it a go-to choice for diverse applications in automotive, industrial, medical, and consumer sectors.

One of the standout features of the R61509V is its high-resolution support, allowing it to drive displays with resolutions up to 800x480 pixels. This capability ensures that users experience clear, vibrant visuals, enhancing the overall usability of devices. The controller supports 16-bit RGB output, enabling a broad color palette and ensuring that colors are rendered accurately and with richness.

The R61509V also incorporates advanced graphics capabilities, including a built-in graphics engine that supports various graphical elements. This engine allows for the overlay of graphics and images, creating smooth transitions and animations that enhance user interaction. Its ability to handle multiple layers makes it ideal for applications that require a complex user interface.

Additionally, the R61509V utilizes a serial peripheral interface (SPI) for communication, allowing for seamless integration with microcontrollers and processors. This feature simplifies the design process and reduces the overall system cost by minimizing the need for additional components. The controller is designed to operate with low power consumption, making it suitable for battery-powered devices where efficiency is critical.

In terms of software support, the R61509V is accompanied by a wide range of software development tools, including drivers and libraries that facilitate the development of applications. Its flexible programming architecture allows engineers to implement custom functionalities that enhance the user experience.

The R61509V is built on reliable, scalable technology, ensuring that it can adapt to various industry demands. With its combination of high-performance graphics, versatile display support, and low power usage, the Renesas R61509V is a compelling choice for manufacturers looking to create innovative and visually appealing products. Whether in automotive dashboards, medical devices, or user-centric consumer electronics, the R61509V enables captivating display solutions that meet modern technological requirements.
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