MN5572 Datasheet, PDF (1/28 Pages) Panasonic Semiconductor – Gray Scale Font Engine

LSIs for Gray Scale Font Engine
MN5572
Gray Scale Font Engine
I Overview
The MN5572 generates shaded gray-scale data from outline (path) data for figures and characters at high speeds. This
IC includes built-in input and output FIFO buffers for high-speed processing, and provides three interface circuits, a
32-bit local bus, a 16-bit local bus, and a PCI bus, so that it can be used in a wide range of application products.
Note) PCI bus is a registered trademark of the (US) Peripheral Component Interconnect Association.
I Features
• Gray levels: The number of gray levels can be set to any value between 2 and 128.
• Bit size: The bit size can be set arbitrarily.
• Generation processing speed: More than 20 000 frames/second (A single frame is 32 dots by 32 dots, when the Heisei
Gothic (Japanese) font is used as the sample data.)
• Interface specifications: Local bus (16 bits or 32 bits, 33 MHz), PCI bus (32 bits, 33 MHz)
• Operating frequency: 66 MHz (maximum)
• Operating supply voltage: 3.3 V ± 0.3 V (5 V inputs are also supported.)
I Applications
• High-quality character generation in STB, DTV, in-car navigation systems and other products.
I Block Diagrams
• Local Mode
RAM
MN5572
ROM
Local Bus
Bridge
CPU
• PCI Mode
Network ^MN5572 Graphics
PCI Bus
Host-PCI _{CPU Bus}
CPU
Bridge
Publication date: November 2001
SDF00008BEM
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