User guide
Table Of Contents
- Contents
- 1. About This MegaCore Function Suite
- Release Information
- Device Family Support
- Features
- Design Example
- Performance and Resource Utilization
- 2D FIR Filter
- 2D Median Filter
- Alpha Blending Mixer
- Avalon-ST Video Monitor
- Chroma Resampler
- Clipper
- Clocked Video Input
- Clocked Video Output
- Color Plane Sequencer
- Color Space Converter
- Control Synchronizer
- Deinterlacer
- Deinterlacer II
- Frame Buffer
- Gamma Corrector
- Interlacer
- Scaler
- Scaler II
- Switch
- Test Pattern Generator
- Trace System
- 2. Getting Started with Altera IP Cores
- 3. Interfaces
- Interface Types
- Avalon-ST Video Protocol
- Avalon-MM Slave Interfaces
- Avalon-MM Master Interfaces
- Buffering of Non-Image Data Packets in Memory
- 4. 2D FIR Filter MegaCore Function
- 5. 2D Median Filter MegaCore Function
- 6. Alpha Blending MegaCore Function
- 7. Avalon-ST Video Monitor MegaCore Function
- 8. Chroma Resampler MegaCore Function
- 9. Clipper MegaCore Function
- 10. Clocked Video Input MegaCore Function
- 11. Clocked Video Output MegaCore Function
- 12. Color Plane Sequencer MegaCore Function
- 13. Color Space Converter MegaCore Function
- 14. Control Synchronizer MegaCore Function
- 15. Deinterlacer MegaCore Function
- Core Overview
- Functional Description
- Parameter Settings
- Signals
- Control Register Maps
- 16. Deinterlacer II MegaCore Function
- 17. Frame Reader MegaCore Function
- 18. Frame Buffer MegaCore Function
- 19. Gamma Corrector MegaCore Function
- 20. Interlacer MegaCore Function
- 21. Scaler MegaCore Function
- 22. Scaler II MegaCore Function
- 23. Switch MegaCore Function
- 24. Test Pattern Generator MegaCore Function
- 25. Trace System MegaCore Function
- A. Avalon-ST Video Verification IP Suite
- B. Choosing the Correct Deinterlacer
- Additional Information
Chapter 17: Frame Reader MegaCore Function 17–3
Parameter Settings
January 2013 Altera Corporation Video and Image Processing Suite
User Guide
Avalon-ST Video Protocol Parameters
The Avalon-ST Video parameters for the Frame Reader MegaCore function are listed
in Table 17–1.
Stall Behavior and Error Recovery
The Frame Reader MegaCore function stalls the output for several tens of cycles
before outputting each video data packet, and stalls the output where there is
contention for access to external memory. The Frame Reader MegaCore can be stalled
due to backpressure, without consequences and it does not require error recovery.
1 For more information about the stall behavior and error recovery, refer to “Stall
Behavior and Error Recovery” on page 1–3.
Latency
The Frame Reader MegaCore function does not have latency issue because the
MegaCore function is only an Avalon-ST Video source.
Parameter Settings
Table 17–2 lists the Frame Reader parameters.
Table 17–1. Frame Reader Avalon-ST Video Parameters
Parameter Value
Frame Width
Set via the Avalon-MM slave control port. Maximum value specified in
parameter editor.
Frame Height
Set via the Avalon-MM slave control port. Maximum value specified in
parameter editor.
Interlaced / Progressive Set via the Avalon-MM slave control port, all values supported.
Bits per Color Sample Specified in parameter editor.
Color Pattern
Up to four color planes in parallel, with up to three color planes in
sequence.
Table 17–2. Frame Reader Parameter Settings (Part 1 of 2)
Parameter Value Description
Bits per pixel per color plane 4–16, Default = 8 The number of bits used per pixel, per color plane
Number of color planes in parallel 1–4, Default = 3 The number color planes transmitted in parallel
Number of color planes in sequence 1–3, Default = 3
The maximum number of color planes transmitted in
sequence
Maximum image width
32–2600, Default =
640
The maximum width of images / video frames
Maximum image height
32–2600, Default =
480
The maximum height of images / video frames
Master port width 16–256, Default = 256 The width in bits of the master port
Read master FIFO depth 8–1024, Default = 64 The depth of the read master FIFO