MN1959041 Commercial MPEG-4 Video Codec IC Datasheet

MN1959041 Commercial MPEG-4 Video Codec IC for W-CDMA Mobile Visual Terminals

Overview MN1959041 is an image-processing DSP that adopts a vector pipelined architecture. It provides an extensive set of features that allow it to implement the high-efficiency image and video encoding and decoding required for image
/ communication, recording, and playback. It implements encoding and decoding that conform to the H.263 and MPEG-4 Simple@L1 video encoding standards, and decoding that conforms to the MPEG-4 Simple@L3 video encoding standard. It includes dedicated special-purpose circuits for high-speed decoding of the MPEG-4 core profile.

• General-purpose DSP core (MP Main Processor) that can implement complex processing flexibly
• Provides an instruction set of 43 instructions, including both scalar and vector instructions.
• Provides interrupt control and task management functions that issue VCE/VIF/MIF (described later) start/stop in-life structions and DMA transfer instructions.
• Special-purpose arithmetic circuit (VCE Video Codec Engine) that implements a high-speed video codec
• Integer precision and half-pel precision motion detection circuit (MEF/MEH)
• Discrete cosine transformation/inverse discrete cosine transformation circuits (DCT/IDCT)
• Variable-length encoding and decoding circuits (VLC/VLD)
• Blocking noise elimination circuit (PNR) win typ tion
• Shape information decoding circuit (CAD)
• Pixel supplementing circuit (PADDING)
• Image synthesis circuit (COMPOSITE)
• Full complement of image signal input and output functions
• Video interface circuit (VIF) that supports both portrait and landscape orientation LCDs
• Support for CIF and QCIF 4:2:2 format video input from CMOS cameras
• P in P function that displays a subscreen in the lower right of the main screen
• Cursor and blue background display functions.
• Functions for picture quality adjustment and for combining video and graphics
• IIC (Inter IC) interface (Conforms to Version 2.0, standard and fast mode)
• Video signal format conversion function (YCbCr 4:2:2 → RGB can be stopped when not needed.)
• Graphics overlay function (Either post RGB conversion or post dithering can be selected.)
• Video signal adjustment functions outline enhancement, tint, color gain, brightness, contrast, and gamma adjust
• Dithering function for pseudo 24-bit color (2 × 2 matrix)
• Monochrome conversion function (Either monochrome or sepia can be specified.)
• Allows moving the display area (a 176-pixel × 220-line area placed anywhere within a 352-pixel x 288-line image)
• YCbCr 4:2:2 test image generation function (75% color bar, horizontal/vertical stripe, arbitrary brightness/color difference)
• Camera reset control function
• Large on-chip DRAM capacity
• On-chip 20 Mbit DRAM provided to reduce parts counts and achieve overall system cost reductions

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MN1959041 Commercial MPEG-4 Video Codec IC Datasheet file may be downloaded here without warranties.