Renesas H8SX user manual Hardware Design, Signal TPU Channel Requirements Suggested

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Direct Drive LCD Design Guide

3.2 Hardware Design

Below is a block diagram of a LCD system which uses Flash and SRAM for respectively storing and buffering the images to be displayed.

The following table describes the TPU channels and pins used for direct drive. Note that the TPU synchronization capability is used to create a common time base between the HDEN, HSYNC and VSYNC pins.

Signal	TPU Channel Requirements	Suggested
Signal	TPU Channel Requirements	Channel
DOTCLK	Output using PWM 1 Mode	1, 2, 4 or 5
DOTPER	TGR to set period of DOTCLK	same as DOTCLK
HDEN	Output using PWM 2 Mode	1, 2, 4 or 5
HDEN2	TGR for PWM 2 Mode	same as HDEN
HSYNC	Output using PWM 1 Mode	0 or 3
VSYNC	Output using PWM 1 Mode	same as HSYNC
HPER	TGR to set horizontal period	same as HSYNC

Figure 9 Block Diagram

Note 1: Dot Clock Logic

Note 2: Touch Screen

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Contents Rev .60 September Index Driver ConfigurationWebsite and Support Revision Record Capabilities IntroductionDirect Drive LCD Overview PhilosophyDriver Configuration LCD Direct Drive Configuration MacrosMacro Name Description Units Demo Location Framecs Panelrotate Frame Buffer ConfigurationRAM Frame Raster Data Dot Clock Hardware Connections Driver Mode SelectionSramdd SdramddDriver Mode Configuration LCD Panel ConfigurationVLINESxx and HDOTxx LCD Platform Configuration XxxxTPUPIN XxxxTPUCHANNELHSync Typical LCD Panel ConnectionsLCD panel interface ClockData Enable RGB Red Green Blue DataTouch Screen Hardware Design Signal TPU Channel Requirements SuggestedLCD API Data Types LCD API Definition Standard RedefinesProperties LCDInitLCDBacklight LCDSetFrameRate LCDGetFrameRate LCDSetActiveRaster LCDGetActiveFrame LCDSetRasterOffset Region LCDSetLineSourceRev Date Description Summary Revision RecordRenesas Technology Corp., All rights reserved

H8S, H8SX specifications

Renesas H8S and H8SX microcontrollers are part of Renesas Electronics' H-series of 16-bit microcontrollers, widely known for their rich functionality, exceptional performance, and versatility in embedded applications. These microcontrollers are ideal for a variety of applications ranging from automotive systems to industrial automation and consumer electronics.

The key feature of the H8S series is its high-performance CPU architecture, which includes efficient instruction execution, allowing for faster processing of tasks. The H8S series operates at clock speeds typically up to 24 MHz, providing ample processing power for complex applications. The H8SX series builds upon the H8S foundation with enhanced performance capabilities, including advanced instruction sets and support for higher clock frequencies, which can reach up to 40 MHz.

One of the standout characteristics of the H8S and H8SX microcontrollers is their rich peripheral set. They offer multiple I/O ports, timers, ADCs (Analog-to-Digital Converters), and communication interfaces such as SPI, I2C, and UART. The built-in ADCs allow for accurate analog signal processing, making these microcontrollers suitable for measuring temperature, pressure, and other sensor inputs in real time.

Moreover, the H8SX series provides additional features like improved flash memory capacity, enabling more complex applications to be developed and more extensive firmware to be stored. With the integration of a high-performance interrupt controller, the H8SX models can manage multiple interrupt sources efficiently, allowing for real-time response to events.

The H8S and H8SX microcontrollers also support a variety of development environments and programming languages, making them accessible for developers with varying skill levels. They are compatible with both C and assembly language programming, along with a range of development tools and IDEs (Integrated Development Environments).

In terms of power consumption, these microcontrollers are designed to be energy-efficient, making them ideal for battery-operated devices. With features such as low-power modes that allow the device to enter sleep modes when inactive, the H8S and H8SX microcontrollers help extend the battery life of applications.

In summary, Renesas H8S and H8SX microcontrollers stand out due to their performance, extensive peripheral functionality, versatility, and energy efficiency. Their rich feature set and compatibility with a variety of development tools make them a desirable choice for developers looking to create innovative embedded solutions across multiple industries.