RFDC Bus Creator

Convert control signals into RF Data Converter real-time interface-compatible bus

Since R2022a

Add-On Required: This feature requires the SoC Blockset Support Package for Xilinx Devices add-on.

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Libraries:
SoC Blockset Support Package for Xilinx Devices / RFSoC / ZCU111
SoC Blockset Support Package for Xilinx Devices / RFSoC / ZCU208
SoC Blockset Support Package for Xilinx Devices / RFSoC / ZCU216

Description

The RFDC Bus Creator block combines a set of control signals into an RF Data Converter real-time interface-compatible bus. The block accepts control signals and outputs a bus.

Port configurations for this block vary based on your control type selection.

Parameter Configuration	Enabled Input Ports
Set Control type to NCO.	NCOFrequency
	NCOPhase
	NCOPhaseReset
	NCOUpdateEnable
Set Control type to Threshold.	PLEvent
	clearOverRange
Set Control type to Threshold and select Gen 3.	PLEvent
	clearOverRange
	clearOverVoltage
Set Control type to NCO and threshold.	NCOFrequency
	NCOPhase
	NCOPhaseReset
	NCOUpdateEnable
	PLEvent
	clearOverRange
Set Control type to NCO and threshold and select Gen 3.	NCOFrequency
	NCOPhase
	NCOPhaseReset
	NCOUpdateEnable
	PLEvent
	clearOverRange
	clearOverVoltage

Ports

Input

NCOFrequency — Frequency for NCO mixer

scalar

Frequency for the numerically controlled oscillator (NCO) mixer, specified as a scalar. The NCO frequency value ranges from –F_s/2 to F_s/2, where F_s is the sample rate in Hz.

The block calculates the RF Data Converter real-time interface-compatible NCO frequency as NCOFrequency x (2⁴⁸ / F_s).

Dependencies

To enable this port, set Control type to NCO or NCO and threshold.

Data Types: fixdt(1,48,0)

NCOPhase — Phase value for output of NCO mixer

scalar

Phase value for the output of the NCO mixer, specified as a scalar. The NCO phase value ranges from –180 to 180 degrees.

The block calculates the RF Data Converter real-time interface-compatible NCO phase as NCOPhase x (2¹⁸ / 360).

Dependencies

To enable this port, set Control type to NCO or NCO and threshold.

Data Types: fixdt(1,18,0)

NCOPhaseReset — Control signal that resets NCO phase offset

Boolean scalar

Control signal that resets the NCO phase offset, specified as a Boolean scalar.

Dependencies

To enable this port, set Control type to NCO or NCO and threshold.

Data Types: Boolean

NCOUpdateEnable — Control signal that determines which NCO frequency and phase bits to update

scalar

Control signal that determines which NCO frequency and phase bits to update, specified as a scalar. Set the bits in this signal to High to update the following bits of the frequency and phase value of the NCO.

• Bit 5 — Reset the phase offset to 0

• Bit 4 — NCOPhase[17:16]

• Bit 3 — NCOPhase[15:0]

• Bit 2 — NCOFrequency[47:32]

• Bit 1 — NCOFrequency[31:16]

• Bit 0 — NCOFrequency[15:0]

For example, if you set only the bit 1 and bit 0 of NCOUpdateEnable to High, only the NCO frequency gets an update in its value on an update event.

Dependencies

To enable this port, set Control type to NCO or NCO and threshold.

Data Types: fixdt(0,6,0)

PLEvent — Control signal that clears threshold status signal

Boolean scalar

Control signal that clears the threshold status signal, specified as a Boolean scalar.

Dependencies

To enable this port, set Control type to Threshold or NCO and threshold.

Data Types: Boolean

clearOverRange — Control signal that clears over range signal

Boolean scalar

Control signal that clears the over range signal, specified as a Boolean scalar.

Dependencies

To enable this port, set Control type to Threshold or NCO and threshold.

Data Types: Boolean

clearOverVoltage — Control signal that clears over voltage signal

Boolean scalar

Control signal that clears the over voltage signal, specified as a Boolean scalar.

Dependencies

To enable this port, set Control type to Threshold or NCO and threshold and select Gen 3.

Data Types: Boolean

Output

ctrlBus — Output control bus

bus

Output control bus, returned as a bus.

Data Types: DUT2RFDCRealTimeCtrlBusObj

Parameters

Control type — Control type selection

NCO (default) | Threshold | NCO and threshold

Specify the type of control.

• NCO — Connect DUT NCO control signals to the RF Data Converter block.

• Threshold — Connect DUT threshold control signals to the RF Data Converter block.

• NCO and threshold — Connect DUT NCO and threshold control signals to the RF Data Converter block.

The input ports of the block vary based on the type of Control type that you select. For more details, see Description.

Gen 3 — Option to add ports for Gen 3 devices

off (default) | on

Select this parameter to add ports for Gen 3 Zynq^® UltraScale+™ RFSoC devices.

Dependencies

To enable this parameter, set Control type to Threshold or NCO and threshold.

Extended Capabilities

HDL Code Generation

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

To automatically generate HDL code for your design, and execute on an SoC device, use the SoC Builder tool.

Version History

Introduced in R2022a