ddr2_mem_v4_dqs_iob.arc_v4_dqs_iob Architecture Reference

DDR2 data strobe IOBs. More...

Inheritance diagram for ddr2_mem_v4_dqs_iob.arc_v4_dqs_iob:

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Collaboration diagram for ddr2_mem_v4_dqs_iob.arc_v4_dqs_iob:

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List of all members.

Processes
PROCESS_163	( clk180 )
	FF enable.
PROCESS_164	( clk180 )
	FF enable.
Components
FD
	D-FF primitive.
IDELAY
	iDelay primitive
IDDR
	DDR input buffer.
ODDR
	DDR output buffer.
IOBUFDS
	bidirectional IO-Buffer
Signals
dqs_in	std_logic
dqs_out	std_logic
dqs_out_l	std_logic
dqs_delayed	std_logic
ctrl_dqs_en_r1	std_logic
vcc	std_logic
gnd	std_logic
clk180	std_logic
data1	std_logic
data2	std_logic
DQS_UNUSED	std_logic
Component Instantiations
idelay_dqs	IDELAY
	iDelay instance
iddr_dqs	IDDR
	DDR input buffer.
oddr_dqs	ODDR
	DDR output buffer.
oddr_dqs_l	ODDR
	DDR output buffer.
tri_state_dqs	FD
	FF.
iobuf_dqs	IOBUFDS
	IO-Buffer.

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Detailed Description

DDR2 data strobe IOBs.

This module places the data stobes in the IOBs.

Definition at line 74 of file ddr2_mem_v4_dqs_iob.vhd.

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Member Function Documentation

[Process]

PROCESS_163

( clk180 )

FF enable.

Definition at line 167 of file ddr2_mem_v4_dqs_iob.vhd.

  process(clk180)
  begin
    if clk180'event and clk180 = '1' then
      if (CTRL_DQS_RST = '1') then
        data1 <= '0';
      else
        data1 <= '1';
      end if;
    end if;
  end process;

[Process]

PROCESS_164

( clk180 )

FF enable.

Definition at line 179 of file ddr2_mem_v4_dqs_iob.vhd.

  process(clk180)
  begin
    if clk180'event and clk180 = '1' then
      if (CTRL_DQS_RST = '1') then
        data2 <= '1';
      else
        data2 <= '0';
      end if;
    end if;
  end process;

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Member Data Documentation

FD [Component]

D-FF primitive.

Definition at line 77 of file ddr2_mem_v4_dqs_iob.vhd.

IDDR [Component]

DDR input buffer.

Definition at line 102 of file ddr2_mem_v4_dqs_iob.vhd.

iddr_dqs IDDR [Component Instantiation]

DDR input buffer.

Definition at line 207 of file ddr2_mem_v4_dqs_iob.vhd.

IDELAY [Component]

iDelay primitive

Definition at line 86 of file ddr2_mem_v4_dqs_iob.vhd.

idelay_dqs IDELAY [Component Instantiation]

iDelay instance

Definition at line 191 of file ddr2_mem_v4_dqs_iob.vhd.

iobuf_dqs IOBUFDS [Component Instantiation]

IO-Buffer.

Definition at line 264 of file ddr2_mem_v4_dqs_iob.vhd.

IOBUFDS [Component]

bidirectional IO-Buffer

Definition at line 136 of file ddr2_mem_v4_dqs_iob.vhd.

ODDR [Component]

DDR output buffer.

Definition at line 119 of file ddr2_mem_v4_dqs_iob.vhd.

oddr_dqs ODDR [Component Instantiation]

DDR output buffer.

Definition at line 223 of file ddr2_mem_v4_dqs_iob.vhd.

oddr_dqs_l ODDR [Component Instantiation]

DDR output buffer.

Definition at line 240 of file ddr2_mem_v4_dqs_iob.vhd.

tri_state_dqs FD [Component Instantiation]

FF.

Definition at line 256 of file ddr2_mem_v4_dqs_iob.vhd.

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The documentation for this class was generated from the following file:

• ddr2_mem_v4_dqs_iob.vhd