CS6652 Amphion, CS6652 Datasheet - Page 2

• Manufacturer Part Number: CS6652
• Description: 2-stream Video Decoder
• Manufacturer: Amphion

Table 1 Defines MPEG-2 profiles and levels supported by the CS6652 & CS6654 MPEG-2 multistream video decoders.
The CS6652/CS6654 cores accept video elementary streams as
input from conditional access decryption, transport stream
demux, or similar sources. These streams are input on a byte-
wide port with handshake flow control signals, allowing a
maximum overall average input bitrate of 300Mbits/sec. The
cores can operate in a default mode on input streams without
the intervention of a host processor. In this mode pictures will
be decoded from the video streams and output in correct
display order. The host processor has access to a full range of
information for each input stream and can control the
behavior
synchronization, pan-scan, letterbox conversion, and various
trick modes. The output from the cores is provided by highly
configurable display DMA (Direct Memory Access) engine.
This allows adjustable output video component sequencing
for each input stream and provides external logic with control
over the display of the picture. To meet the high bandwidth
requirements of the simultaneous decoding and display of up
to four 4:2:2P@ML elementary streams (or a single 4:2:2P@HL
elementary stream), a bank of two SDRAM chips is used.
These SDRAM chips are commodity 64Mbit PC133 SDRAMs
in 2Mx32 configuration.
2
Level
High
High 1440
Main
CS6652/54
Table 1: MPEG-2 Profiles and Levels Supported by CS6652/54 Cores
of
Samples/line
Lines/frame
Frames/sec
Max. luma samples rate
Samples/line
Lines/frame
Frames/sec
Max. luma samples rate
Samples/line
Lines/frame
Frames/sec
Max. luma samples rate
Multistream Mode
Single stream Mode
the
CS6652/CS6654 MPEG-2 MULTISTREAM VIDEO DECODERS
decoder
Multi-stream MPEG-2 Video Decoders
to
Profile
permit
720x
576x
30
10368000
audio/video
Simple
1920x
1088x
60
62668800
1440x
1088x
60
47001600
720x
576x
30
10368000
Main
1920x
1088x
60
62668800
720x
608x
30
11059200
4:2:2