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Signal Direction Description
is_eop Input dout port Avalon-ST endofpacket signal. This signal is
asserted when the downstream device is ending a frame.
is_ready Output dout port Avalon-ST ready signal. This signal is asserted
when the IP core function is able to receive data.
is_sop Input dout port Avalon-ST startofpacket signal. Assert this
signal when the downstream device is starting a new
frame.
is_valid Input dout port Avalon-ST valid signal. Assert this signal when
the downstream device produces data.
underflow Output Clocked video underflow signal. A signal corresponding to
the underflow sticky bit of the Status register synchron‐
ized to vid_clk. This signal is for information only and
no action is required if it is asserted.
Note: Present only if you turn on Use control port.
vcoclk_div Output A divided down version of vid_clk (vcoclk). Setting the
Vcoclk Divider register to be the number of samples in a
line produces a horizontal reference on this signal. A PLL
uses this horizontal reference to synchronize its output
clock.
sof Input Start of frame signal. A rising edge (0 to 1) indicates the
start of the video frame as configured by the SOF registers.
Connecting this signal to a CVI IP core allows the output
video to be synchronized to this signal.
sof_locked Output Start of frame locked signal. When asserted, the sof signal
is valid and can be used.
status_update_int Output control slave port Avalon-MM interrupt signal. When
asserted, the status registers of the IP core have been
updated and the master must read them to determine
what has occurred.
Note: Present only if you turn on Use control port.
vid_clk Input Clocked video clock. All the video output signals are
synchronous to this clock.
vid_data Output Clocked video data bus. This bus transfers video data into
the IP core.
vid_datavalid Output Clocked video data valid signal. Assert this signal when a
valid sample of video data is present on vid_data.
4-32
Clocked Video Interface Signals
UG-VIPSUITE
2015.05.04
Altera Corporation
Clocked Video Interface IP Cores
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- 101 Innovation Drive 1
- San Jose, CA 95134 1
- Contents 2
- Feature Support 7
- Release Information 9
- Device Family Support 10
- IP Core Mode Latency 11
- Interfaces 28
- Video Formats 29
- D0 D1vid_data 32
- Signal Name Description 33
- Avalon-ST Video Protocol 34
- Video Data Packets 38
- Symbol transmitted first 39
- Symbol transmitted last 39
- Plane for even rows 40
- Plane for odd rows 40
- Control Data Packets 42
- Parameters 43
- Description 43
- Type Width Height Interlacin 43
- Order Symbol Order Symbol 45
- Ancillary Data Packets 46
- Packet Propagation 46
- Parameter Name Value 47
- Signal Width Direction 47
- Packet Transfer Examples 48
- Parameter Value 50
- Avalon-MM Slave Interfaces 52
- Avalon-MM Master Interfaces 55
- Related Information 56
- Getting Started 57
- OpenCore Plus IP Evaluation 59
- Control Port 60
- Format Description 61
- Interrupts 64
- Generator Lock 68
- Underflow and Overflow 70
- Timing Constraints 71
- Handling Ancillary Packets 71
- Modules Description 75
- Address Register Description 100
- UG-VIPSUITE 105
- 2015.05.04 105
- 2D FIR Filter IP Core 106
- Coefficient Precision 107
- Parameter Value Description 108
- 2D FIR Filter Signals 109
- Signal Direction Description 110
- Video Mixing IP Cores 112
- Alpha Blending 113
- Video Mixing Signals 116
- 20 Input 3 enable 121
- Chroma Resampler IP Core 122
- 4:4:4 to 4:2:2 123
- 4:2:2 to 4:4:4 123
- Vertical Resampling (4:2:0) 124
- Chroma Resampler Signals 126
- Video Clipping IP Cores 127
- Video Clipping Signals 130
- Color Plane Sequencer IP Core 135
- Rearranging Color Patterns 136
- Splitting and Duplicating 137
- Subsampled Data 138
- Color Plane Sequencer Signals 139
- IP Cores Feature 141
- Input and Output Data Types 142
- Color Space Conversion 142
- Operands 145
- Control Synchronizer IP Core 153
- Control Synchronizer Signals 157
- Deinterlacing IP Cores 160
- Deinterlacing Methods 161
- Bob with Scanline Duplication 162
- Motion-Adaptive 162
- Sobel-Based HQ Mode 164
- Frame Buffering 165
- Types Description 166
- Frame Rate Conversion 167
- Altera Corporation 168
- Send Feedback 168
- Deinterlacing Signals 176
- Register Address 190
- (Decimal) 190
- Register Suggested 190
- Settings 190
- Comments 190
- Tuning Motion Shift 191
- Frame Reader IP Core 192
- Frame Reader Signals 194
- Frame Buffer IP Cores 198
- Double Buffering 199
- Triple Buffering 199
- Locked Frame Rate Conversion 200
- Color Format 201
- Frame Buffer Signals 206
- Gamma Corrector IP Core 214
- Gamma Corrector Signals 215
- Interlacer IP Core 218
- Interlacer Parameter Settings 219
- Interlacer Signals 219
- Interlacer Control Registers 221
- Scaler II IP Core 222
- Bilinear Algorithm 223
- Double-Buffering 226
- Scaler II Parameter Settings 230
- Scaler II Signals 233
- Scaler II Control Registers 235
- Video Switching IP Cores 237
- Mixer Layer Switching 238
- Video Switching Signals 239
- Test Pattern 243
- Trace System IP Core 253
- Trace System Signals 255
- Trace Within System Console 258
- TCL Shell Commands 259
- Command Arguments Function 260
- Packet Visualization 263
- Monitor Settings 264
- Subscribe 269
- Avalon-ST Video Class Library 270
- Class Description 272
- Running the Tests 275
- Video File Reader Test 278
- Example Test Environment 281
- Video Field Life Cycle 282
- Constrained Random Test 283
- Code for Scoreboards 285
- Code for to_grey Function 286
- Complete Class Reference 287
- Method Call Description 288
- Member Description 288
- Raw Video Data Format 299
- Y 410 / A 2R 10 G 10 B 10 301
- Additional Information 306
- Date Version Changes 307
- How to Contact Altera 310
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