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added IODELAY_GROUP for ODELAY,IDELAY,and IDELAYCTRL

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AngeloJacobo 2025-03-01 14:41:00 +08:00
parent 74f68760a4
commit 99eaa7d103
1 changed files with 8 additions and 1 deletions
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9
rtl/ddr3_phy.v
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@ -351,6 +351,7 @@ module ddr3_phy #(
//Delay the DQ //Delay the DQ
// Delay resolution: 1/(32 x 2 x F REF ) = 78.125ps // Delay resolution: 1/(32 x 2 x F REF ) = 78.125ps
(* IODELAY_GROUP="DDR3-GROUP" *)
ODELAYE2 #( ODELAYE2 #(
.DELAY_SRC("ODATAIN"), // Delay input (ODATAIN, CLKIN) .DELAY_SRC("ODATAIN"), // Delay input (ODATAIN, CLKIN)
.HIGH_PERFORMANCE_MODE("TRUE"), // Reduced jitter to 5ps ("TRUE"), Reduced power but high jitter 9ns ("FALSE") .HIGH_PERFORMANCE_MODE("TRUE"), // Reduced jitter to 5ps ("TRUE"), Reduced power but high jitter 9ns ("FALSE")
@ -493,6 +494,7 @@ module ddr3_phy #(
//odelay adds an insertion delay of 600ps to the actual delay setting: https://support.xilinx.com/s/article/42133?language=en_US //odelay adds an insertion delay of 600ps to the actual delay setting: https://support.xilinx.com/s/article/42133?language=en_US
//Delay the DQ //Delay the DQ
// Delay resolution: 1/(32 x 2 x F REF ) = 78.125ps // Delay resolution: 1/(32 x 2 x F REF ) = 78.125ps
(* IODELAY_GROUP="DDR3-GROUP" *)
ODELAYE2 #( ODELAYE2 #(
.DELAY_SRC("ODATAIN"), // Delay input (ODATAIN, CLKIN) .DELAY_SRC("ODATAIN"), // Delay input (ODATAIN, CLKIN)
.HIGH_PERFORMANCE_MODE("TRUE"), // Reduced jitter to 5ps ("TRUE"), Reduced power but high jitter 9ns ("FALSE") .HIGH_PERFORMANCE_MODE("TRUE"), // Reduced jitter to 5ps ("TRUE"), Reduced power but high jitter 9ns ("FALSE")
@ -621,6 +623,7 @@ module ddr3_phy #(
// IDELAYE2: Input Fixed or Variable Delay Element // IDELAYE2: Input Fixed or Variable Delay Element
// 7 Series // 7 Series
// Xilinx HDL Libraries Guide, version 13.4 // Xilinx HDL Libraries Guide, version 13.4
(* IODELAY_GROUP="DDR3-GROUP" *)
IDELAYE2 #( IDELAYE2 #(
.DELAY_SRC("IDATAIN"), // Delay input (IDATAIN, DATAIN) .DELAY_SRC("IDATAIN"), // Delay input (IDATAIN, DATAIN)
.HIGH_PERFORMANCE_MODE("TRUE"), //Reduced jitter ("TRUE"), Reduced power ("FALSE") .HIGH_PERFORMANCE_MODE("TRUE"), //Reduced jitter ("TRUE"), Reduced power ("FALSE")
@ -772,6 +775,7 @@ module ddr3_phy #(
//odelay adds an insertion delay of 600ps to the actual delay setting: https://support.xilinx.com/s/article/42133?language=en_US //odelay adds an insertion delay of 600ps to the actual delay setting: https://support.xilinx.com/s/article/42133?language=en_US
//Delay the DQ //Delay the DQ
// Delay resolution: 1/(32 x 2 x F REF ) = 78.125ps // Delay resolution: 1/(32 x 2 x F REF ) = 78.125ps
(* IODELAY_GROUP="DDR3-GROUP" *)
ODELAYE2 #( ODELAYE2 #(
.DELAY_SRC("ODATAIN"), // Delay input (ODATAIN, CLKIN) .DELAY_SRC("ODATAIN"), // Delay input (ODATAIN, CLKIN)
.HIGH_PERFORMANCE_MODE("TRUE"), // Reduced jitter to 5ps ("TRUE"), Reduced power but high jitter 9ns ("FALSE") .HIGH_PERFORMANCE_MODE("TRUE"), // Reduced jitter to 5ps ("TRUE"), Reduced power but high jitter 9ns ("FALSE")
@ -925,6 +929,7 @@ module ddr3_phy #(
// 7 Series // 7 Series
// Xilinx HDL Libraries Guide, version 13.4 // Xilinx HDL Libraries Guide, version 13.4
//Delay the DQ //Delay the DQ
(* IODELAY_GROUP="DDR3-GROUP" *)
ODELAYE2 #( ODELAYE2 #(
.DELAY_SRC("ODATAIN"), // Delay input (ODATAIN, CLKIN) .DELAY_SRC("ODATAIN"), // Delay input (ODATAIN, CLKIN)
.HIGH_PERFORMANCE_MODE("TRUE"), // Reduced jitter ("TRUE"), Reduced power ("FALSE") .HIGH_PERFORMANCE_MODE("TRUE"), // Reduced jitter ("TRUE"), Reduced power ("FALSE")
@ -1055,10 +1060,11 @@ module ddr3_phy #(
); // End of IOBUFDS_inst instantiation ); // End of IOBUFDS_inst instantiation
end end
// (* mark_debug = "true" *) wire[4:0] IDELAYE2_dqs_CNTVALUEOUT;
// IDELAYE2: Input Fixed or Variable Delay Element // IDELAYE2: Input Fixed or Variable Delay Element
// 7 Series // 7 Series
// Xilinx HDL Libraries Guide, version 13.4 // Xilinx HDL Libraries Guide, version 13.4
(* IODELAY_GROUP="DDR3-GROUP" *)
IDELAYE2 #( IDELAYE2 #(
.DELAY_SRC("IDATAIN"), // Delay input (IDATAIN, DATAIN) .DELAY_SRC("IDATAIN"), // Delay input (IDATAIN, DATAIN)
.HIGH_PERFORMANCE_MODE("TRUE"), //Reduced jitter ("TRUE"), Reduced power ("FALSE") .HIGH_PERFORMANCE_MODE("TRUE"), //Reduced jitter ("TRUE"), Reduced power ("FALSE")
@ -1298,6 +1304,7 @@ module ddr3_phy #(
// IDELAYCTRL: IDELAYE2/ODELAYE2 Tap Delay Value Control // IDELAYCTRL: IDELAYE2/ODELAYE2 Tap Delay Value Control
// 7 Series // 7 Series
// Xilinx HDL Libraries Guide, version 13.4 // Xilinx HDL Libraries Guide, version 13.4
(* IODELAY_GROUP="DDR3-GROUP" *)
IDELAYCTRL IDELAYCTRL_inst ( IDELAYCTRL IDELAYCTRL_inst (
.RDY(idelayctrl_rdy), // 1-bit output: Ready output .RDY(idelayctrl_rdy), // 1-bit output: Ready output
.REFCLK(i_ref_clk), // 1-bit input: Reference clock input.The frequency of REFCLK must be 200 MHz to guarantee the tap-delay value specified in the applicable data sheet. .REFCLK(i_ref_clk), // 1-bit input: Reference clock input.The frequency of REFCLK must be 200 MHz to guarantee the tap-delay value specified in the applicable data sheet.