MBUFG_PS - 2025.2 English - Primitive: A Multi-Output high-fanout buffer for low-skew distribution of the PS Clock signals

Primitive: A Multi-Output high-fanout buffer for low-skew distribution of the PS Clock signals

PRIMITIVE_GROUP: CLOCK
PRIMITIVE_SUBGROUP: BUFFER

Introduction

A Multi-Output high-fanout buffer for low-skew distribution of the PS Clock signals.

Port Descriptions

Port	Direction	Width	Function
CLRB_LEAF	Input	1	Active low clear of BUFDIV_LEAF
I	Input	1	Clock buffer input.
O1	Output	1	I in PERFORMANCE MODE
O2	Output	1	I/2 in PERFORMANCE MODE
O3	Output	1	I/4 in PERFORMANCE MODE
O4	Output	1	I/8 in PERFORMANCE MODE

Design Entry Method

Instantiation	Yes
Inference	No
IP and IP Integrator Catalog	Recommended

Available Attributes

Attribute	Type	Allowed Values	Default	Description
MODE	STRING	"PERFORMANCE"	"PERFORMANCE"	Sets the mode of operation that determines the output clock generation. For PERFORMANCE MODE, the outputs are generated as follows: O1 = I O2 = I/2 O3 = I/4 O4 = I/8

VHDL Instantiation Template

Unless they already exist, copy the following two statements and paste them before the entity declaration.

Library UNISIM;
use UNISIM.vcomponents.all;


-- MBUFG_PS: A Multi-Output high-fanout buffer for low-skew distribution of the PS Clock signals
--           Versal Premium Series
-- Xilinx HDL Language Template, version 2025.2

MBUFG_PS_inst : MBUFG_PS
generic map (
   MODE => "PERFORMANCE"  -- Sets the mode of operation that determines the output clock generation. For PERFORMANCE MODE, the outputs are
                          -- generated as follows: O1 = I O2 = I/2 O3 = I/4 O4 = I/8 <br/>
)
port map (
   O1 => O1,               -- 1-bit output: Buffer
   O2 => O2,               -- 1-bit output: Buffer
   O3 => O3,               -- 1-bit output: Buffer
   O4 => O4,               -- 1-bit output: Buffer
   CLRB_LEAF => CLRB_LEAF, -- 1-bit input: Active low clear
   I => I                  -- 1-bit input: Clock buffer input
);

-- End of MBUFG_PS_inst instantiation

Verilog Instantiation Template


// MBUFG_PS: A Multi-Output high-fanout buffer for low-skew distribution of the PS Clock signals
//           Versal Premium Series
// Xilinx HDL Language Template, version 2025.2

MBUFG_PS #(
   .MODE("PERFORMANCE")  // Sets the mode of operation that determines the output clock generation. For PERFORMANCE MODE, the outputs are
                         // generated as follows: O1 = I O2 = I/2 O3 = I/4 O4 = I/8 <br/>
)
MBUFG_PS_inst (
   .O1(O1),               // 1-bit output: Buffer
   .O2(O2),               // 1-bit output: Buffer
   .O3(O3),               // 1-bit output: Buffer
   .O4(O4),               // 1-bit output: Buffer
   .CLRB_LEAF(CLRB_LEAF), // 1-bit input: Active low clear
   .I(I)                  // 1-bit input: Clock buffer input
);

// End of MBUFG_PS_inst instantiation

Related Information

Versal Adaptive SoC Clocking Resources Architecture Manual (AM003)

MBUFG_PS - 2025.2 English - Primitive: A Multi-Output high-fanout buffer for low-skew distribution of the PS Clock signals - UG1485