Pixel Control Bus Selector

Select signals from control signal bus used by Vision HDL Toolbox blocks

• Library:

• Vision HDL Toolbox / Utilities

• 

Description

The Pixel Control Bus Selector block selects signals from the pixelcontrol bus. See Pixel Control Bus.

The block is an implementation of the Simulink^® Bus Selector block. See Bus Selector (Simulink) for more information.

Ports

Input

Port_1 — Control signals accompanying pixel stream

pixelcontrol bus

The pixelcontrol bus contains five signals. The signals describe the validity of the pixel and its location in the frame. For more information, see Pixel Control Bus.

Data Types: bus

Output

Port_1 — First pixel in a horizontal line of a frame

scalar

First pixel in a horizontal line of a frame, returned as a Boolean scalar. This port returns the hStart signal from the input bus.

Data Types: Boolean

Port_2 — Last pixel in a horizontal line of a frame

scalar

Last pixel in a horizontal line of a frame, returned as a Boolean scalar. This port returns the hEnd signal from the input bus.

Data Types: Boolean

Port_3 — First pixel in the first (top) line of a frame

scalar

First pixel in the first (top) line of a frame, returned as a Boolean scalar. This port returns the vStart signal from the input bus.

Data Types: Boolean

Port_4 — Last pixel in the last (bottom) line of a frame

scalar

Last pixel in the last (bottom) line of a frame, returned as a Boolean scalar. This port returns the vEnd signal from the input bus.

Data Types: Boolean

Port_5 — Valid pixel indicator

scalar

Valid pixel indicator, returned as a Boolean scalar. This port returns the valid signal from the input bus.

Data Types: Boolean

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using Simulink® Coder™.

This block supports C/C++ code generation for Simulink accelerator and rapid accelerator modes and for DPI component generation.

HDL Code Generation

Generate Verilog and VHDL code for FPGA and ASIC designs using HDL Coder™.

HDL Coder™ provides additional configuration options that affect HDL implementation and synthesized logic.

To learn more about using buses for HDL code generation, see Buses (HDL Coder) and Use Bus Signals to Improve Readability of Model and Generate HDL Code (HDL Coder).

HDL Architecture

This block has a single, default HDL architecture.

HDL Block Properties

ConstrainedOutputPipeline	Number of registers to place at the outputs by moving existing delays within your design. Distributed pipelining does not redistribute these registers. The default is 0. For more details, see ConstrainedOutputPipeline (HDL Coder).
InputPipeline	Number of input pipeline stages to insert in the generated code. Distributed pipelining and constrained output pipelining can move these registers. The default is 0. For more details, see InputPipeline (HDL Coder).
OutputPipeline	Number of output pipeline stages to insert in the generated code. Distributed pipelining and constrained output pipelining can move these registers. The default is 0. For more details, see OutputPipeline (HDL Coder).