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National Semiconductor Electronic Components Datasheet

CS1311 Datasheet

(CS1301 / CS1311) Media Coprocessor

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Preliminary
August 2002
Revision 2.2
Geode™ CS1301/CS1311 Multimedia Companion:
Media Coprocessor
General Description
The National Semiconductor® Geode™ CS1301 and
CS1311 multimedia companions act as coprocessors to
decode multimedia in National’s Geode single chip proces-
sor-based systems (i.e., SC1200/SC1201, SC2200, and
SC3200, hereafter referred to as SCx200). They provide a
multimedia experience for an Information Appliance (IA)
user that cannot typically be achieved on a PC.
By implementing a dedicated coprocessor to perform multi-
media tasks, a high quality video viewing experience can
be achieved. This high quality is achieved by having a
coprocessor architecture that is ideally suited for decoding
digital media. In addition, since the decoding is not occur-
ring on the SCx200, system events cannot interrupt the
coprocessor’s task of decoding media and thereby causing
stuttering of sound or interruptions in the video.
Lower power consumption can also be achieved using the
SCx200/CS1301 or SCx200/CS1311 solution. The
CS1301/CS1311 has an architecture specifically designed
for decoding media. The architecture is such that while
decoding media, power is not consumed by portions of the
system that are not used to decode media. Since the
SCx200 is not decoding the media locally, it is able to go
into a lower power state. When the CS1301/CS1311 is not
decoding media, it uses almost no power.
Additionally, since the architecture is designed for decoding
media, fewer CS1301/CS1311 cycles are required.
Internal Block Diagram
CCIR-656 Digital Video
YUV 4:2:2 up to 81 MHz
(40 Mpix/sec)
Stereo Digital Audio
8/16-bit data I2S DC,
up to 22 MHz AI_SCK
Huffman Decoder
Slice-At-A-Time
MPEG-1 & 2
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32-Bit Data
(up to 664 MB/sec)
Main Memory Interface
Video In
Video Out
Audio In
VLD
Coprocessor
Timers
Audio Out
S/PDIF Out
ACCESS.bus
Interface
CCIR-656 Digital Video
2/4/6/8 Ch. Digital Audio
16/32-Bit Data I2S DC,
up to 22 MHz AO_SCK
IEC958 up to 40 Mbit/sec
ACCESS.bus Interface
to EEPROM
VLIW 32K I$
CPU 16K D$
Image
Coprocessor
PCI Interface
Down and Up Scaling
YUV --> RGB
(50 Mpix/sec)
External Bus
PCI V2.1 (32 bits, 33 MHz)
National Semiconductor and Virtual System Architecture are registered trademarks of National Semiconductor Corporation.
Geode, MacPHYTER, WebPAD, and VSA are trademarks of National Semiconductor Corporation.
For a complete listing of National Semiconductor trademarks, please visit www.national.com/trademarks.
© 2002 National Semiconductor Corporation
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National Semiconductor Electronic Components Datasheet

CS1311 Datasheet

(CS1301 / CS1311) Media Coprocessor

No Preview Available !

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Features
General Features
VLD Coprocessor
s Physical
s Process 0.25-micron CMOS
s Packaged in a 292-terminal TEPBGA (Thermally
Enhanced Plastic Ball Grid Array)
s Parses MPEG-1 and MPEG-2 elementary bit streams
generating run-level pairs and filling macroblock
headers
Timers
s Power supply:
— CS1301: 2.5V Core; 3.3V I/O (5V tolerant)
— CS1311: 2.2V Core; 3.3V I/O (5V tolerant)
s Four 32-bit wide timers
Input/Output Support
s Consumption 1300 mA; 3.5W
s PCI Interface:
s Power-down 300 mA
— PCI 2.1 compliant
— Speed 33 MHz
s Case Temperature 0° to 85°C
— Bus width 32 bits
— Voltage drive and receive at 3.3V
Central Processing Unit
s Clock speed:
— CS1301: 180 MHz
s Audio In (AI):
— Two I2S compliant channels
— Sample size 8 or 16-bit samples per channel
— CS1311: 166 MHz
s Instruction length variable (2 to 23 bytes)
s Instruction set arithmetic and logical operations,
load/store operations, special multimedia and DSP
operations, IEEE compliant floating point operations
s Functional units 27, pipelined
s Audio Out (AO):
— Eight I2S compliant channels
— Sample size 16 or 32-bit samples per channel
s Video In (VI):
— Supported signals CCIR-601/656:
– 8-bit video (up to 40 Mpix/sec)
— Image sizes all sizes, subject to sample rate
Caches
s Data 16 KB, instructions 32 KB
— Provides programmable on-the-fly 2X horizontal
resolution subsampling
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s Video Out (VO):
Memory System
— Image sizes flexible, including CCIR-601; max.
4K x 4K pixels (subject to 80 MB/sec data rate)
s Speed 166 MHz SDRAM
s CPU/Memory programmable; 1:1, 5:4, 4:3, 3:2, and 2:1
speed ratios
— Outputs CCIR-601/656 8-bit video, PAL or NTSC
— Clock rates programmable (4-80 MHz), typical
27 MB/sec (13.5 Mpix/sec for NTSC, PAL;
40 Mpix/sec in YUV 4:2:2 mode)
s Memory size 512 KB to 64 MB (up to four banks)
— Features full 129-level alpha blending, GenLock
mode, frame synchronization chroma key,
s Recommended configurations:
programmable YUV color clipping
— 16 MB: Two 4M x 16 or two 2M x 32
— 32 MB: Four 2M x 32 or four 4M x 16
s S/PDIF Out:
— Number of channels up to 6
s Width 32-bit bus
— Sample size 16 or 24 bits per channel
s Max. bandwidth 664 MB/sec (at 166 MHz)
— IEC-958, output up to 40 Mbits/sec
s ACCESS.bus Interface:
Image Coprocessor
s Scaling programmable scale factor (0.2X to 10X) using
5-tap filters:
— Supported modes single master only
— Addressing 7-bit
— Rates up to 400 Kbps
— Horizontal or vertical scaling and filtering of individual
Y, U or V
— Horizontal scaling and filtering with color conversion
and overlay
— HYUV to RGB, RGB overlay and alpha blending, bit
mask blanking
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2
Revision 2.2


Part Number CS1311
Description (CS1301 / CS1311) Media Coprocessor
Maker National Semiconductor
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CS1311 Datasheet PDF






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