NEPTUNE¡¯s Advantages

NEPTUNE is the multiprocessor that supports the next-generation image codec standards called MPEG-4 part10 AVC or H.264. In particular, this chip supports the H.264 baseline level1.3 for video. As for audio, it is designed to enable programming in accordance with applications. Therefore, it is designed to apply both Korea terrestrial DMB(Digital Multimedia Broadcasting) and satellite DMB. This chip enables various audio decoding like AAC+/AAC/MP3/BSAC according to programs. The H.264 performance has been maximized with hardware implementation. In particular, it is embedded with ARM CPU to enable various S/W processing. It is also embedded with various peripherals to facilitate system integration. The H.264 standard video processing is capable of decoding 30 frames per second for CIF-class images, required by DMB specifications. It is designed to run as a whole in a low frequency of 20MHz by using the hardware-designed IDCT, VLD, Prediction and de-blocking filter. In addition, this chip includes the image filtering, OSD (On Screen Display), image format conversion, and image size conversion, necessary for various multimedia screen display. Therefore, it enables its own post processing without additional functions. ARM CPU used as a main processor can be used effectively for OS porting and loading various API & application programs.

 Features

Video Decoder
   1) Hardwired H.264 base line video decoder
   2) CIF 30frames/sec decoding 12.5 MHz
   3) ARM base optimal video processing architecture for video decoding
   4) Low power architecture for portable device application

Audio Decoder
   1) Teaklite DSP core based audio decoding hardware
   2) Fully programmable audio decoding for T-DMB/S-DMB
   3) Optimized architecture for audio decoding performance  API/software
   4) Application hardware driver for video / audio decoding
   5) MPEG-2 TS demux for DMB stream manipulation
   6) User interface for video post processing
   7) Providing various total solutions included optimized receiving module interface

Hardware accelerator for H.264 video decoding
   1) High speed VLD / Fast IDCT
   2) Parallel INTRA/INTER Prediction 
   3) Independent Deblocking Filter block

System peripherals
   1) High speed DMA access channel
   2) Error detection, error cancellation mode for error prone applications
   3) Programmable NAL decoding scheme
   4) many peripherals for system integration(Timer,UART,IIS,IIC,GPIO, USB)

Post processor
   1) Image display/clipping On / Off
   2) 2, 3/2, 1, 3/4, 1/2, 1/4 Image Size and Rotation Display
   3) Coefficient programmable 7 tap horizontal filtering on output filtering
   4) 3 tap vertical filtering
   5) OSD (On Screen Display) capability
   6) Digital LCD interface (RGB)
   7) Alpha blending capability

Performance
   1) max CIF 30 frames/sec video decoding
   2) system frequency : max 160MHz
   3) process technology : 0.18um CMOS 
   4) package : 256pin LFBGA 
                      1.2cm x 1.2cm, 0.65 ball ptch 
                      1.7cm x 1.7cm, 1.0 ball pitch
   5) operation voltage : 1.8V +/- 10%
   6) power dissipation : 200mW 


 Specifications

Video : H.264 base line decoder, MPEG4 codec
Audio : AAC version 1, MP3 encoding/decoding 
Low power design for handheld devices  
Hardware accelerator for video CODEC
Various pre/post processing capabilities for system application

 Applications

Various terrestrial/satellite DMB terminals
   1) Vehicle in-dash AV terminal
   2) Personal PMP terminal
   3) cellular phone