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