SAA7146AH NXP Semiconductors, SAA7146AH Datasheet - Page 3

• Manufacturer Part Number: SAA7146AH
• Manufacturer: NXP Semiconductors

Specifications of SAA7146AH

• Lead Free Status / Rohs Status: Compliant

Philips Semiconductors
1
1.1
1.2
2004 Aug 25
Full size, full speed video delivery to and from the frame
buffer or virtual system memory enables various
processing possibilities for any external PCI device
Full bandwidth PCI-bus master write and read (up to
132 Mbytes/s)
Virtual memory support (4 Mbytes per DMA channel)
Processing of maximum 4095 active samples per line
and maximum 4095 lines per frame
Vanity picture (mirror) for video phone and video
conferencing applications
Video flip (upside down picture)
Colour space conversion with gamma correction for
different kinds of displays
Chroma Key generation and utilization
Pixel dithering for low resolution video output formats
Brightness, contrast and saturation control
Video and Vertical Blanking Interval (VBI) synchronized
programming of internal registers with Register
Programming Sequencer (RPS), ability to control two
asynchronous data streams simultaneously
Memory Management Unit (MMU) supports virtual
demand paging memory management (Windows, Unix,
etc.)
Rectangular clipping of frame buffer areas minimizes
PCI-bus load
Random shape mask clipping protects selectable areas
of frame buffer
3
‘graceful’ recovery.
Time Slot List (TSL) processing for flexible control of
audio frames up to 256 bits on 2 asynchronous
bidirectional digital audio interfaces simultaneously
(4 DMA channels)
Video synchronous audio capture, e.g. for sound cards
Various synchronization modes to support I
other different audio and DSP data formats
Audio input level monitoring enables peak control via
software
Programmable bit clock generation for master and slave
applications.
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
FEATURES
128 Dword video FIFO with overflow detection and
Video processing
Audio processing
2
S-bus and
3
1.3
1.4
Scaling of video pictures down to randomly sized
windows (vertical down to 1 : 1024; horizontal down to
1 : 256)
High Performance Scaler (HPS) offers two-dimensional,
phase correct data processing for improved signal
quality of scaled video data, especially for compression
applications
Horizontal and vertical FIR filters with up to 65 taps
Horizontal upscaling (zoom) supports e.g. CCIR to
square pixel conversion
Additional Binary Ratio Scaler (BRS) supports CIF and
QCIF formats, especially for video phone and video
conferencing.
Dual D1 (8-bit, CCIR 656) video I/O interface
DMSD2 compatible (16-bit YUV) video input interface
Supports various packed (pixel dithering) and planar
video output formats
Data Expansion Bus Interface (DEBI) for interfacing with
e.g. MPEG or JPEG decoders with Intel (ISA like) and
Motorola (68000 like) protocol style, capability for
immediate and block mode (DMA) transfers with up to
23 Mbytes/s peak data rate
5 digital audio I/O ports
4 independent user configurable General Purpose I/O
Ports (GPI/O) for interrupt and status processing
PCI interface (release 2.1)
I
2
C-bus interface (bus master).
Scaling
Interfacing
Product specification
SAA7146A