ZR36057
ENHANCED PCI BUS MULTIMEDIA CONTROLLER
DATA SHEET
FEATURES
Glueless interface to PCI bus (PCI spec. 2.1 compliant).
Video output: 15- and 16-bit RGB pixel formats, as well as
24-bit (packed and unpacked), and YUV 4:2:2.
Minimum interface to JPEG decoders (e.g. ZR36050 &
ZR36016), MPEG1 decoders (e.g., ZR36110), video digitiz-
ers (e.g., SAA7110, SAA7111) and video encoders (e.g.,
SAA7188, MD207).
Hardware support for non-contiguous JPEG code buffers.
Graceful recovery from extreme bus latencies both on video
and code transfers.
Bi-directional DMA transfer of compressed data up to 11M
bytes/sec.
Choice of emulated interlaced video display, or single field
display, to eliminate motion artifacts.
DMA transfer of video and overlay information.
Support for fast still image compression and decompression.
Smooth image down-scaler (up to 5-tap horizontal filter).
On-chip pixel accurate masking.
Hardware support for simple, cost effective frame grabbing.
2
I C bus master port.
Plug & Play support.
208-pin PQFP package.
YUV-to-RGB converter with quantization noise reduction by
error diffusion.
Accompanying software includes Video For Windows (VFW)
drivers for Windows 3.1 and Windows 95.
APPLICATIONS
High quality video and audio capture/playback and editing
boards for PCI systems.
PCI motherboards with multimedia capability.
JPEG/MPEG1 solutions for PowerPC and Macintosh PCI
systems.
Multimedia/Graphics subsystems using a secondary PCI
bus.
Video Decoder
Video Encoder
Audio Control
Audio FIFO
Strip Buffer
32kB SRAM
ZR36016
Graphics
Sub-System
Audio Codec
ZR36057
ZR36050
Audio Core
JPEG Core
PCI Bus
Figure 1. Block Diagram of a Typical Motion JPEG System for PCI
ZORAN Corporation
2041 Mission College Blvd
Santa Clara, CA 95054
(408) 986-1314
FAX (408) 986-1240
August 1996