summary
This article refers to the address: http://
Fujitsu's new graphics system controller product is a single-chip solution that combines color display and video input and instrument control functions, and integrates the "FR81S" high-performance CPU core. This series of products can be applied to automotive dashboards. In addition to the MB91590 series that supports color LCD display, Fujitsu has also introduced the MB91570 series that supports segment LCD display.
Figure 1 shows an example of a system architecture.
To ensure that researchers successfully apply these products to their designs, Fujitsu offers a development environment kit that includes the latest line-up on-chip debugger (simulator) and the integrated development environment SOFTUNEV6. In addition, Fujitsu also provides StarterKit and sample programs, graphic design tools and graphics libraries to facilitate designers who do not have the GDC-related knowledge embedded in the product to visualize the display design.
The series integrates the world-class high-performance CPU core "FR81S", the unique Sprite graphics display controller (GDC), graphics display memory (VRAM), and video capture for external input images in a single chip. And communication functions such as CAN and LIN. The new product family reduces cost by reducing peripheral circuitry and reduces chip package size. In addition, since the number of external connection buses of the noise generation source is reduced, the noise removing component is reduced, and the system can achieve high performance at a lower cost.
Table 1 shows the main development tools, and Figure 2 shows the development environment examples.
Characteristics
2D graphics rendering engine integrated inside the graphics display controller
This series integrates many display functions for automotive dashboards, including internal video memory, line drawing, and area copying. It scales the captured image and performs a 90-degree rotation. Since it can expand and display string length encoded images, video data can be processed with less memory capacity. In addition, the video capture function accepts video signals in digital YUB/RGB format and includes an NTSC decoder to process the analog video content.
High-performance new 32-bit CPU core "FR81S"
The CPU core FR81S used in this product operates at a maximum internal operating frequency of 128MHz. The CAN embedded microcontroller provides world-class high-speed processing. In addition, this product also has a single-precision floating-point unit for filtering and high-speed image processing, and a memory protection unit that prevents external intrusion into the storage area.
Built-in NOR new flash architecture
The new product has a new NOR-type new flash architecture (NewFlasharchitecture) that improves the MCU processing power by utilizing the high-speed and low-power mode of the NOR flash memory to achieve high-speed reading of programs.
In the conceptual diagram shown in FIG. 3, the priority can be displayed for each sprite.
Special sprite
Figure 4 shows an overview of the functionality of a special Sprite. as the picture shows.
Line drawing: It can be used in the parking assist system, which is used to draw lines of the image of the reversing camera and display small images such as dots and lines.
Figure 5 shows an example of line drawing.
String length encoding: The video memory is reduced in length due to the length of the video data.
Figure 6 shows an example of reducing video memory capacity.
Provides optimal peripheral functionality for automotive dashboard systems
The product's built-in CR internal resonator, hardware monitor, and low-voltage detection circuitry minimizes the number of peripheral components required. This product is equipped with a variety of peripheral functions for the car dashboard system, including stepper motor controller, debug signal and sound generator for alarm, and UART supporting CAN and LIN. A buffer that can store 64 messages.
Low power function
In a low-power mode such as standby, the power supply in the non-operating circuit is turned off by the power gating technique, thereby achieving low power consumption (low leakage). This product is equipped with multiple built-in voltage regulators, eliminating the need for a color liquid crystal display. In low-power mode (accessory switch OFF), it is possible to perform a separate power-off only for the GDC circuit.
Figure 7 shows the functional block diagram (summary).
For products that use segmented liquid crystal display car dashboards
In order to achieve design resource sharing, Fujitsu has launched two "MB91570 Series" products for automotive dashboards with segment LCDs.
The GDC part is removed. The product has an LCD controller built in. The other peripheral resources are the same as the MB91590 series. Therefore, in addition to the graphics functions, the software resources of the two series can be shared, which can reduce development costs.
summary
For the needs of various automotive dashboards, Fujitsu will continue to expand its product lineup and introduce more and better products. I hope that users can continue to support Fujitsu as always.
Figure 8 shows the development roadmap for a 32-bit microcontroller for automotive dashboards.
FTTH Fiber Optic Splice Tray is designed to provide a place to store the fiber cables and splices and prevent them from becoming damaged or being misplaced. It is also called a splice enclosure or splice organizer. This device does not contain any technical functions, and the design is simple. Also, Fiber Optic Tray has a very low price for people to afford. However, the importance of fiber splice tray for protecting fibers is significant. And the skills needed for using a fiber splice tray is not as simple as you think.
Made by industrial high-quality ABS plastic, Fiber Optic Cable Tray is provided to place the fiber splice points and pre-terminated for fiber connectivity. The splice tray expands fiber splice capabilities as well as provides the splicing location for fiber optic cables. It can be put into the fiber distribution frame, fiber splice closure, optic terminal box, etc. Sijee offers different shapes of fiber splice tray with or without termination function. Fiber Optic Tray, Fusion Splice Box, Fiber Optic Cable Tray, Splice Tray Optic Fiber are available.
Applications:
Fiber splice trays are usually placed in the middle of a route where cables are required to be joined or at the termination and patch panel points at the end of the cable runs. Also, splices can be placed in a splice tray which is then placed inside a splice closure for OSP (outside plant) installations or a patch panel box for premises applications. As for indoor application, fiber splice trays are often integrated into patch panels to provide for connections to the fibers.
FTTH Fiber Optic Splice Tray
Fiber Optic Tray,Fusion Splice Box,Fiber Optic Cable Tray,Splice Tray Optic Fiber
Sijee Optical Communication Technology Co.,Ltd , https://www.sijee-optical.com