CX25834 datasheet(2/4 Pages) CONEXANT

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PCl Video Decoder

Fusion 878A

digital

infotainment

products

General Features

Because Fusion 878A is fully compatible with the

current Bt878/879, upgrading to requirements like

PC 98/99 compliance is a minimal investment. Also,

customers can standardize with one PCI video

decoder to enable multiple conﬁgurations of TV

cards that address the broad spectrum of broadcast

requirements around the world. Because Fusion 878A

is based on the Bt878/879, customers can continue

to support their products using one software code

base, adding functionality by including additional

software modules.

Features

Bt878

Fusion 878A

All Bt848A Features

Mono Audio

DVCR

PC 99 Compliance

ATSC Digital TV

DVB

Transport Stream DMA

for Digital Television

The analog and digital audio paths have been modiﬁed

for increased bandwidth and functionality. The

asynchronous parallel port, which uses the analog

data path, has an increased raw data rate of 20 MBps.

Additionally, the I2S port has been modiﬁed to handle

data up to 40 Mbps. This added functionality makes

Fusion the ideal choice for ATSC, DVB, DBS, and digital

cable platforms on the PC.

Driver software is available to move transport packet

streams from a wide variety of digital demodulators

to host memory using the Fusion 878A DMA engine.

Therefore, building next-generation digital broadcast

solutions on the proven Bt878 platform is easy and

low risk since the software is incremental to existing

Fusion software.

PC 99 Compliance

ACPI and Power Management Interface

Fusion 878A supports ACPI and the Power

Management Interface 1.0 speciﬁcations, making

the Fusion 878A the product of choice for green PC

and notebook applications.

Vital Product Data

Vital Product Data (VPD) is required by PCI speciﬁcation

version 2.2. Through the Fusion 878A and the use

of an external EEPROM, manufacturers can store

information that identiﬁes the product down to the

serial number. The data is stored in ASCII format

and is accessible through the conﬁguration space

VPD interface registers. This feature provides board

manufacturers and PC OEMs the ability to more

accurately track their product as well as offer

improved or enhanced customer support.

Worldwide Video Support

The Fusion family supports all the features and

ﬂexibility of the Bt848A video solution, including

the integration of a NTSC/PAL/SECAM composite

and S-video decoder, high-quality scaler, and PCI bus

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