CSA3 Descrambler
The CSA 3 descrambler IP core was designed for handled up to four different transport streams with even and odd keys for each TS. Handling of one 128-bit data word takes about 78 clock cycles (i.e. about 5 clock cycles per 1 byte).
Features
- Full support of DVB CSA 3 Descrambling specification
- Flow-through architecture
- Up to 4 different transport streams
- APB 3.0 interface for programming
- About 100 K cells
Benefits
- Easy to integrate with standard APB interface and simple flow-through data interface
- High performance – about 5 cycles per byte
- Handling up to 4 different transport streams, even and odd keys for each
Deliverables
- RTL Source code
- Verification environment
- SDC for synthesis and STA
- User Guide
- Integration manual
Applications
- DVB set-top-boxes with conditional access support and multiple tuners
- Personal video recorders
- Conditional Access Modules
- Broadcast equipment
Block Diagram of the CSA3 Descrambler IP Core

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