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CS7808-CM Datasheet(PDF) 19 Page - Cirrus Logic

Part No. CS7808-CM
Description  MULTI PURPOSE AUDIO/VIDEO EMBEDDED PROCESSOR
Download  52 Pages
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Maker  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
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CS7808-CM Datasheet(HTML) 19 Page - Cirrus Logic

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CS7808
Built in PLLs generate all required clocks from
27 Mhz input clock
3.2.4
Memory Controller
Supports SDRAM, and SGRAM, from 2 Mbytes to
32 Mbytes
Supports multiple banks of FLASH and ROM up to
16 Mbytes
32-bit data bus for DRAM, 8 or 16-bit data bus for
ROM
3.2.5
Data Flow Engine
2432 bytes of internal memory
DMA to/from main RAM into local SRAM
Supports endian conversion and byte, short, long
data formats on DMA
Supports block transfers for graphics bit blits
3.2.6
Audio Interface
Supports PCM, I2S and IEC-958 outputs at up to
96 KHz output rate
8 output channels, 2 input channels
3.2.7
Video Input
NTSC/PAL video decoder input interface
Built in variable down scaling, handles CCIR 601 to
QCIF input formats
Video input image can be displayed in small win-
dow, or as main picture
3.2.8
External Interface
Serial I2C
® master and slave port
29 independent fully programmable bi-directional
I/O pins
8 edge or level detection interrupt pins
Hardware assisted support for infrared remote de-
vices, such as remote control, infrared keyboard,
mouse, printer, and more
Programmable parallel host master and slave inter-
face supports many formats including ATAPI, ISA,
and more
Serial interface supports AC-97 and other standard
MODEM CODEC protocols
3.2.9
Video Processor
Supports 24-bit 4:2:0 and 4:2:2 video modes and
16-bit true color graphics modes.
On screen display module supports 2-bit, 4-bit, or 8-
bit pixel modes, while supporting 3 separate regions
and 16 transparency overlay levels
Picture-in-picture module includes horizontal and
vertical downscaling with programmable output siz-
es, positions, and borders
Overlay mixer with RGB to YUV conversion and
output formatting
Supports 4:2:0, 4:2:2, YUV655, RGB565 and
RGB555 frame buffer inputs
Outputs 4:2:2 video in CCIR-601 or CCIR-656 for-
mat
High quality scaling using a vertical and a horizontal
16 taps polyphase programmable filter and sup-
ports any size image up to 768x576
Programmable sharpening and de-blocking filters
5 taps programmable adaptive anti-flicker filtering
for graphics source
Master or Slave video sync configuration
Multiple video plains overlay (main video / video in-
put / picture_in_picture / picture/on_screen / dis-
play/cursor)
Gamma correction
3.2.10
Cursor
4-bit color
16-level alpha blending


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