The MN2WS0025 is a single-chip HDTV system LSI

intended for use in DTV and STB applications in the United

States, Japan, and Europe. This chip can be used to design

a very low-cost yet highly featured product. With the built-in

CableCARD™ interface, the MN2WS0025 directly sup-

ports U.S. Plug-and-Play/OpenCable™.

This chip provides the back-end processing necessary for

receiving digital HDTV broadcasts: transport stream decod-

ing (TS), MPEG video and audio decoding, peripheral func-

tions, and system processing. A standard system requires

just two 128-Mbit DDR-SDRAM chips.

The chip supports the U.S. terrestrial standard (ATSC), the

Plug-and-Play/OpenCable™ standard, the Japanese ter-

restrial standard (ISDB-T), both Japanese satellite stan-

dards (ISBD-S and DVB-S), and other digital broadcast

specifications from around the world. The MN2WS0025

also includes the CableCARD™ interface for the U.S.

OpenCable™ specifications and the interface for European

DVB specifications.

To enhance system efficiency, the MN2WS0025 has the fol-

lowing internal peripheral I/O interfaces:

An audio delay function is also built-in for synchronizing

audio and video when receiving analog broadcasts as part

of an integrated analog and digital system.

MN2WS0025 OVERVIEW

MN2WS0025 System Block Diagram

Transport

decoder

Remote

control

Smart

card x2

Smart

card

SD

card

Power

control

Font

processor

1394

interface

1394

LSI

Front end

NTSC

decoder

Video

capture

Audio

capture

NAND

flash

memory

Flash

memory

DDR-SDRAM

External

bus I/F

DDR-SDRAM I/F

Serial

port

x2

DMA

CPU

AV

decoder

I-cache: 8 KB

D-cache: 8 KB

Parallel

port

Cross

bus

switch

32

32

Primary

video

output

Secondary

video

output

Audio

output

SD