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Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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RTL (GS rasterizer, EE core stub, platform bridge, LPDDR4B path), sim regression
(272 TBs), docs, and tooling. Copyrighted PS2 content (BIOS, game code, GS dumps,
and all dump-derived textures/traces) is excluded via .gitignore and stays local.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
thejayman77
2026-06-29 20:10:50 -04:00
commit ec82764bef
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qsys/qsys_top/altera_reset_controller_1924/sim/altera_reset_controller.sdc
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# (C) 2001-2026 Altera Corporation. All rights reserved.
# Your use of Altera Corporation's design tools, logic functions and other
# software and tools, and its AMPP partner logic functions, and any output
# files from any of the foregoing (including device programming or simulation
# files), and any associated documentation or information are expressly subject
# to the terms and conditions of the Altera Program License Subscription
# Agreement, Altera IP License Agreement, or other applicable
# license agreement, including, without limitation, that your use is for the
# sole purpose of programming logic devices manufactured by Altera and sold by
# Altera or its authorized distributors. Please refer to the applicable
# agreement for further details.
# +---------------------------------------------------
# | Cut the async clear paths
# +---------------------------------------------------
set aclr_counter 0
set clrn_counter 0
if { [expr ![info exists show_hpath_of_all_reset_controller_inst]] } {
set show_hpath_of_all_reset_controller_inst 0
}
if {[get_current_instance] == ""} {set hpath ""} else {set hpath "[get_current_instance]|*"}
if {$show_hpath_of_all_reset_controller_inst == 1} {
post_message -type info "Following instance found in the design - $hpath"
}
set aclr_collection [get_pins -compatibility_mode -nocase -nowarn ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain*|aclr]
set clrn_collection [get_pins -compatibility_mode -nocase -nowarn ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain*|clrn]
set num_sync_stage [get_registers -nocase -nowarn ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain[*]]
set num_sync_count [get_collection_size $num_sync_stage]
set aclr_counter [get_collection_size $aclr_collection]
set clrn_counter [get_collection_size $clrn_collection]
if {$aclr_counter == 0 && $clrn_counter == 0 && $num_sync_count > 0} {
set_max_delay -to [get_registers ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain[[expr $num_sync_count-1]]] 100
set_min_delay -to [get_registers ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain[[expr $num_sync_count-1]]] -100
}
if {$aclr_counter > 0} {
set_false_path -to [get_pins -compatibility_mode -nocase ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain*|aclr]
}
if {$clrn_counter > 0} {
set_false_path -to [get_pins -compatibility_mode -nocase ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain*|clrn]
}
qsys/qsys_top/altera_reset_controller_1924/sim/altera_reset_controller.v
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// (C) 2001-2026 Altera Corporation. All rights reserved.
// Your use of Altera Corporation's design tools, logic functions and other
// software and tools, and its AMPP partner logic functions, and any output
// files from any of the foregoing (including device programming or simulation
// files), and any associated documentation or information are expressly subject
// to the terms and conditions of the Altera Program License Subscription
// Agreement, Altera IP License Agreement, or other applicable
// license agreement, including, without limitation, that your use is for the
// sole purpose of programming logic devices manufactured by Altera and sold by
// Altera or its authorized distributors. Please refer to the applicable
// agreement for further details.
// (C) 2001-2013 Altera Corporation. All rights reserved.
// Your use of Altera Corporation's design tools, logic functions and other
// software and tools, and its AMPP partner logic functions, and any output
// files any of the foregoing (including device programming or simulation
// files), and any associated documentation or information are expressly subject
// to the terms and conditions of the Altera Program License Subscription
// Agreement, Altera MegaCore Function License Agreement, or other applicable
// license agreement, including, without limitation, that your use is for the
// sole purpose of programming logic devices manufactured by Altera and sold by
// Altera or its authorized distributors. Please refer to the applicable
// agreement for further details.
// $Id: //acds/rel/26.1/ip/iconnect/merlin/altera_reset_controller/altera_reset_controller.v#1 $
// $Revision: #1 $
// $Date: 2026/02/05 $
// --------------------------------------
// Reset controller
//
// Combines all the input resets and synchronizes
// the result to the clk.
// ACDS13.1 - Added reset request as part of reset sequencing
// --------------------------------------
`timescale 1 ns / 1 ns
module altera_reset_controller
#(
parameter NUM_RESET_INPUTS = 6,
parameter USE_RESET_REQUEST_IN0 = 0,
parameter USE_RESET_REQUEST_IN1 = 0,
parameter USE_RESET_REQUEST_IN2 = 0,
parameter USE_RESET_REQUEST_IN3 = 0,
parameter USE_RESET_REQUEST_IN4 = 0,
parameter USE_RESET_REQUEST_IN5 = 0,
parameter USE_RESET_REQUEST_IN6 = 0,
parameter USE_RESET_REQUEST_IN7 = 0,
parameter USE_RESET_REQUEST_IN8 = 0,
parameter USE_RESET_REQUEST_IN9 = 0,
parameter USE_RESET_REQUEST_IN10 = 0,
parameter USE_RESET_REQUEST_IN11 = 0,
parameter USE_RESET_REQUEST_IN12 = 0,
parameter USE_RESET_REQUEST_IN13 = 0,
parameter USE_RESET_REQUEST_IN14 = 0,
parameter USE_RESET_REQUEST_IN15 = 0,
parameter OUTPUT_RESET_SYNC_EDGES = "deassert",
parameter SYNC_DEPTH = 2,
parameter RESET_REQUEST_PRESENT = 0,
parameter RESET_REQ_WAIT_TIME = 3,
parameter MIN_RST_ASSERTION_TIME = 11,
parameter RESET_REQ_EARLY_DSRT_TIME = 4,
parameter ADAPT_RESET_REQUEST = 0
)
(
// --------------------------------------
// We support up to 16 reset inputs, for now
// --------------------------------------
input reset_in0,
input reset_in1,
input reset_in2,
input reset_in3,
input reset_in4,
input reset_in5,
input reset_in6,
input reset_in7,
input reset_in8,
input reset_in9,
input reset_in10,
input reset_in11,
input reset_in12,
input reset_in13,
input reset_in14,
input reset_in15,
input reset_req_in0,
input reset_req_in1,
input reset_req_in2,
input reset_req_in3,
input reset_req_in4,
input reset_req_in5,
input reset_req_in6,
input reset_req_in7,
input reset_req_in8,
input reset_req_in9,
input reset_req_in10,
input reset_req_in11,
input reset_req_in12,
input reset_req_in13,
input reset_req_in14,
input reset_req_in15,
input clk,
output reg reset_out,
output reg reset_req
);
// Always use async reset synchronizer if reset_req is used
localparam ASYNC_RESET = (OUTPUT_RESET_SYNC_EDGES == "deassert");
// --------------------------------------
// Local parameter to control the reset_req and reset_out timing when RESET_REQUEST_PRESENT==1
// --------------------------------------
localparam MIN_METASTABLE = 3;
localparam RSTREQ_ASRT_SYNC_TAP = MIN_METASTABLE + RESET_REQ_WAIT_TIME;
localparam LARGER = RESET_REQ_WAIT_TIME > RESET_REQ_EARLY_DSRT_TIME ? RESET_REQ_WAIT_TIME : RESET_REQ_EARLY_DSRT_TIME;
localparam ASSERTION_CHAIN_LENGTH = (MIN_METASTABLE > LARGER) ?
MIN_RST_ASSERTION_TIME + 1 :
(
(MIN_RST_ASSERTION_TIME > LARGER)?
MIN_RST_ASSERTION_TIME + (LARGER - MIN_METASTABLE + 1) + 1 :
MIN_RST_ASSERTION_TIME + RESET_REQ_EARLY_DSRT_TIME + RESET_REQ_WAIT_TIME - MIN_METASTABLE + 2
);
localparam RESET_REQ_DRST_TAP = RESET_REQ_EARLY_DSRT_TIME + 1;
// --------------------------------------
wire merged_reset;
wire merged_reset_req_in;
wire reset_out_pre;
reg reset_out_pre_reg;
wire reset_req_pre;
// Registers and Interconnect
(*preserve*) reg [RSTREQ_ASRT_SYNC_TAP: 0] altera_reset_synchronizer_int_chain;
reg [ASSERTION_CHAIN_LENGTH-1: 0] r_sync_rst_chain;
reg r_sync_rst;
reg r_early_rst;
// --------------------------------------
// "Or" all the input resets together
// --------------------------------------
assign merged_reset = (
reset_in0 |
reset_in1 |
reset_in2 |
reset_in3 |
reset_in4 |
reset_in5 |
reset_in6 |
reset_in7 |
reset_in8 |
reset_in9 |
reset_in10 |
reset_in11 |
reset_in12 |
reset_in13 |
reset_in14 |
reset_in15
);
assign merged_reset_req_in = (
( (USE_RESET_REQUEST_IN0 == 1) ? reset_req_in0 : 1'b0) |
( (USE_RESET_REQUEST_IN1 == 1) ? reset_req_in1 : 1'b0) |
( (USE_RESET_REQUEST_IN2 == 1) ? reset_req_in2 : 1'b0) |
( (USE_RESET_REQUEST_IN3 == 1) ? reset_req_in3 : 1'b0) |
( (USE_RESET_REQUEST_IN4 == 1) ? reset_req_in4 : 1'b0) |
( (USE_RESET_REQUEST_IN5 == 1) ? reset_req_in5 : 1'b0) |
( (USE_RESET_REQUEST_IN6 == 1) ? reset_req_in6 : 1'b0) |
( (USE_RESET_REQUEST_IN7 == 1) ? reset_req_in7 : 1'b0) |
( (USE_RESET_REQUEST_IN8 == 1) ? reset_req_in8 : 1'b0) |
( (USE_RESET_REQUEST_IN9 == 1) ? reset_req_in9 : 1'b0) |
( (USE_RESET_REQUEST_IN10 == 1) ? reset_req_in10 : 1'b0) |
( (USE_RESET_REQUEST_IN11 == 1) ? reset_req_in11 : 1'b0) |
( (USE_RESET_REQUEST_IN12 == 1) ? reset_req_in12 : 1'b0) |
( (USE_RESET_REQUEST_IN13 == 1) ? reset_req_in13 : 1'b0) |
( (USE_RESET_REQUEST_IN14 == 1) ? reset_req_in14 : 1'b0) |
( (USE_RESET_REQUEST_IN15 == 1) ? reset_req_in15 : 1'b0)
);
// --------------------------------------
// And if required, synchronize it to the required clock domain,
// with the correct synchronization type
// --------------------------------------
generate if (OUTPUT_RESET_SYNC_EDGES == "none" && (RESET_REQUEST_PRESENT==0)) begin
assign reset_out_pre = merged_reset;
assign reset_req_pre = merged_reset_req_in;
end else begin
altera_reset_synchronizer
#(
.DEPTH (SYNC_DEPTH),
.ASYNC_RESET(RESET_REQUEST_PRESENT? 1'b1 : ASYNC_RESET)
)
alt_rst_sync_uq1
(
.clk (clk),
.reset_in (merged_reset),
.reset_out (reset_out_pre)
);
altera_reset_synchronizer
#(
.DEPTH (SYNC_DEPTH),
.ASYNC_RESET(0)
)
alt_rst_req_sync_uq1
(
.clk (clk),
.reset_in (merged_reset_req_in),
.reset_out (reset_req_pre)
);
end
endgenerate
generate if ( ( (RESET_REQUEST_PRESENT == 0) && (ADAPT_RESET_REQUEST==0) )|
( (ADAPT_RESET_REQUEST == 1) && (OUTPUT_RESET_SYNC_EDGES != "deassert") ) ) begin
always @* begin
reset_out = reset_out_pre;
reset_req = reset_req_pre;
end
end else if ( (RESET_REQUEST_PRESENT == 0) && (ADAPT_RESET_REQUEST==1) ) begin
wire reset_out_pre2;
altera_reset_synchronizer
#(
.DEPTH (SYNC_DEPTH+1),
.ASYNC_RESET(0)
)
alt_rst_sync_uq2
(
.clk (clk),
.reset_in (reset_out_pre),
.reset_out (reset_out_pre2)
);
always @* begin
reset_out = reset_out_pre2;
reset_req = reset_req_pre;
end
end
else begin
// 3-FF Metastability Synchronizer
//synthesis translate_off
initial
begin
altera_reset_synchronizer_int_chain <= {RSTREQ_ASRT_SYNC_TAP{1'b1}};
end
// Synchronous reset pipe
initial
begin
r_sync_rst_chain <= {ASSERTION_CHAIN_LENGTH{1'b1}};
end
//synthesis translate_on
always @(posedge clk or posedge reset_out_pre)
begin
if (reset_out_pre)
reset_out_pre_reg <= 1'h1;
else
reset_out_pre_reg <= reset_out_pre;
end
always @(posedge clk)
begin
altera_reset_synchronizer_int_chain[RSTREQ_ASRT_SYNC_TAP:0] <=
{altera_reset_synchronizer_int_chain[RSTREQ_ASRT_SYNC_TAP-1:0], reset_out_pre_reg};
end
always @(posedge clk)
begin
if (altera_reset_synchronizer_int_chain[MIN_METASTABLE-1] == 1'b1)
begin
r_sync_rst_chain <= {ASSERTION_CHAIN_LENGTH{1'b1}};
end
else
begin
r_sync_rst_chain <= {1'b0, r_sync_rst_chain[ASSERTION_CHAIN_LENGTH-1:1]};
end
end
// Standard synchronous reset output. From 0-1, the transition lags the early output. For 1->0, the transition
// matches the early input.
if (OUTPUT_RESET_SYNC_EDGES != "deassert" ) begin
always @(posedge clk)
begin
case ({altera_reset_synchronizer_int_chain[RSTREQ_ASRT_SYNC_TAP], r_sync_rst_chain[1], r_sync_rst})
3'b000: r_sync_rst <= 1'b0; // Not reset
3'b001: r_sync_rst <= 1'b0;
3'b010: r_sync_rst <= 1'b0;
3'b011: r_sync_rst <= 1'b1;
3'b100: r_sync_rst <= 1'b1;
3'b101: r_sync_rst <= 1'b1;
3'b110: r_sync_rst <= 1'b1;
3'b111: r_sync_rst <= 1'b1; // In Reset
default: r_sync_rst <= 1'b1;
endcase
case ({r_sync_rst_chain[1], r_sync_rst_chain[RESET_REQ_DRST_TAP] | reset_req_pre})
2'b00: r_early_rst <= 1'b0; // Not reset
2'b01: r_early_rst <= 1'b1; // Coming out of reset
2'b10: r_early_rst <= 1'b0; // Spurious reset - should not be possible via synchronous design.
2'b11: r_early_rst <= 1'b1; // Held in reset
default: r_early_rst <= 1'b1;
endcase
end
end
else begin
always @(posedge clk)
begin
case ({altera_reset_synchronizer_int_chain[RSTREQ_ASRT_SYNC_TAP], r_sync_rst_chain[1], r_sync_rst})
3'b000: r_sync_rst <= 1'b0; // Not reset
3'b001: r_sync_rst <= 1'b0;
3'b010: r_sync_rst <= 1'b0;
3'b011: r_sync_rst <= 1'b1;
3'b100: r_sync_rst <= 1'b1;
3'b101: r_sync_rst <= 1'b1;
3'b110: r_sync_rst <= 1'b1;
3'b111: r_sync_rst <= 1'b1; // In Reset
default: r_sync_rst <= 1'b1;
endcase
end
always @(posedge clk or posedge reset_out_pre )
begin
if(reset_out_pre) begin
r_early_rst <= 1'b1;
end
else begin
case ({r_sync_rst_chain[1], r_sync_rst_chain[RESET_REQ_DRST_TAP] | reset_req_pre})
2'b00: r_early_rst <= 1'b0; // Not reset
2'b01: r_early_rst <= 1'b1; // Coming out of reset
2'b10: r_early_rst <= 1'b0; // Spurious reset - should not be possible via synchronous design.
2'b11: r_early_rst <= 1'b1; // Held in reset
default: r_early_rst <= 1'b1;
endcase
end
end
end
always @* begin
reset_out = r_sync_rst;
reset_req = r_early_rst;
end
end
endgenerate
endmodule
`ifdef QUESTA_INTEL_OEM
`pragma questa_oem_00 "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"
`endif
qsys/qsys_top/altera_reset_controller_1924/sim/altera_reset_synchronizer.v
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// (C) 2001-2026 Altera Corporation. All rights reserved.
// Your use of Altera Corporation's design tools, logic functions and other
// software and tools, and its AMPP partner logic functions, and any output
// files from any of the foregoing (including device programming or simulation
// files), and any associated documentation or information are expressly subject
// to the terms and conditions of the Altera Program License Subscription
// Agreement, Altera IP License Agreement, or other applicable
// license agreement, including, without limitation, that your use is for the
// sole purpose of programming logic devices manufactured by Altera and sold by
// Altera or its authorized distributors. Please refer to the applicable
// agreement for further details.
// $Id: //acds/rel/26.1/ip/iconnect/merlin/altera_reset_controller/altera_reset_synchronizer.v#1 $
// $Revision: #1 $
// $Date: 2026/02/05 $
// -----------------------------------------------
// Reset Synchronizer
// -----------------------------------------------
`timescale 1 ns / 1 ns
module altera_reset_synchronizer
#(
parameter ASYNC_RESET = 1,
parameter DEPTH = 2
)
(
input reset_in /* synthesis ALTERA_ATTRIBUTE = "SUPPRESS_DA_RULE_INTERNAL=R101" */,
input clk,
output reset_out
);
// -----------------------------------------------
// Synchronizer register chain. We cannot reuse the
// standard synchronizer in this implementation
// because our timing constraints are different.
//
// Instead of cutting the timing path to the d-input
// on the first flop we need to cut the aclr input.
//
// We omit the "preserve" attribute on the final
// output register, so that the synthesis tool can
// duplicate it where needed.
// -----------------------------------------------
(*preserve*) reg [DEPTH-1:0] altera_reset_synchronizer_int_chain;
reg altera_reset_synchronizer_int_chain_out;
generate if (ASYNC_RESET) begin
// -----------------------------------------------
// Assert asynchronously, deassert synchronously.
// -----------------------------------------------
always @(posedge clk or posedge reset_in) begin
if (reset_in) begin
altera_reset_synchronizer_int_chain <= {DEPTH{1'b1}};
altera_reset_synchronizer_int_chain_out <= 1'b1;
end
else begin
altera_reset_synchronizer_int_chain[DEPTH-2:0] <= altera_reset_synchronizer_int_chain[DEPTH-1:1];
altera_reset_synchronizer_int_chain[DEPTH-1] <= 0;
altera_reset_synchronizer_int_chain_out <= altera_reset_synchronizer_int_chain[0];
end
end
assign reset_out = altera_reset_synchronizer_int_chain_out;
end else begin
// -----------------------------------------------
// Assert synchronously, deassert synchronously.
// -----------------------------------------------
always @(posedge clk) begin
altera_reset_synchronizer_int_chain[DEPTH-2:0] <= altera_reset_synchronizer_int_chain[DEPTH-1:1];
altera_reset_synchronizer_int_chain[DEPTH-1] <= reset_in;
altera_reset_synchronizer_int_chain_out <= altera_reset_synchronizer_int_chain[0];
end
assign reset_out = altera_reset_synchronizer_int_chain_out;
end
endgenerate
endmodule
`ifdef QUESTA_INTEL_OEM
`pragma questa_oem_00 "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"
`endif
qsys/qsys_top/altera_reset_controller_1924/synth/altera_reset_controller.sdc
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@@ -0,0 +1,44 @@
# (C) 2001-2026 Altera Corporation. All rights reserved.
# Your use of Altera Corporation's design tools, logic functions and other
# software and tools, and its AMPP partner logic functions, and any output
# files from any of the foregoing (including device programming or simulation
# files), and any associated documentation or information are expressly subject
# to the terms and conditions of the Altera Program License Subscription
# Agreement, Altera IP License Agreement, or other applicable
# license agreement, including, without limitation, that your use is for the
# sole purpose of programming logic devices manufactured by Altera and sold by
# Altera or its authorized distributors. Please refer to the applicable
# agreement for further details.
# +---------------------------------------------------
# | Cut the async clear paths
# +---------------------------------------------------
set aclr_counter 0
set clrn_counter 0
if { [expr ![info exists show_hpath_of_all_reset_controller_inst]] } {
set show_hpath_of_all_reset_controller_inst 0
}
if {[get_current_instance] == ""} {set hpath ""} else {set hpath "[get_current_instance]|*"}
if {$show_hpath_of_all_reset_controller_inst == 1} {
post_message -type info "Following instance found in the design - $hpath"
}
set aclr_collection [get_pins -compatibility_mode -nocase -nowarn ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain*|aclr]
set clrn_collection [get_pins -compatibility_mode -nocase -nowarn ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain*|clrn]
set num_sync_stage [get_registers -nocase -nowarn ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain[*]]
set num_sync_count [get_collection_size $num_sync_stage]
set aclr_counter [get_collection_size $aclr_collection]
set clrn_counter [get_collection_size $clrn_collection]
if {$aclr_counter == 0 && $clrn_counter == 0 && $num_sync_count > 0} {
set_max_delay -to [get_registers ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain[[expr $num_sync_count-1]]] 100
set_min_delay -to [get_registers ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain[[expr $num_sync_count-1]]] -100
}
if {$aclr_counter > 0} {
set_false_path -to [get_pins -compatibility_mode -nocase ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain*|aclr]
}
if {$clrn_counter > 0} {
set_false_path -to [get_pins -compatibility_mode -nocase ${hpath}alt_rst_sync_uq1|altera_reset_synchronizer_int_chain*|clrn]
}
qsys/qsys_top/altera_reset_controller_1924/synth/altera_reset_controller.v
+367
View File
@@ -0,0 +1,367 @@
// (C) 2001-2026 Altera Corporation. All rights reserved.
// Your use of Altera Corporation's design tools, logic functions and other
// software and tools, and its AMPP partner logic functions, and any output
// files from any of the foregoing (including device programming or simulation
// files), and any associated documentation or information are expressly subject
// to the terms and conditions of the Altera Program License Subscription
// Agreement, Altera IP License Agreement, or other applicable
// license agreement, including, without limitation, that your use is for the
// sole purpose of programming logic devices manufactured by Altera and sold by
// Altera or its authorized distributors. Please refer to the applicable
// agreement for further details.
// (C) 2001-2013 Altera Corporation. All rights reserved.
// Your use of Altera Corporation's design tools, logic functions and other
// software and tools, and its AMPP partner logic functions, and any output
// files any of the foregoing (including device programming or simulation
// files), and any associated documentation or information are expressly subject
// to the terms and conditions of the Altera Program License Subscription
// Agreement, Altera MegaCore Function License Agreement, or other applicable
// license agreement, including, without limitation, that your use is for the
// sole purpose of programming logic devices manufactured by Altera and sold by
// Altera or its authorized distributors. Please refer to the applicable
// agreement for further details.
// $Id: //acds/rel/26.1/ip/iconnect/merlin/altera_reset_controller/altera_reset_controller.v#1 $
// $Revision: #1 $
// $Date: 2026/02/05 $
// --------------------------------------
// Reset controller
//
// Combines all the input resets and synchronizes
// the result to the clk.
// ACDS13.1 - Added reset request as part of reset sequencing
// --------------------------------------
`timescale 1 ns / 1 ns
module altera_reset_controller
#(
parameter NUM_RESET_INPUTS = 6,
parameter USE_RESET_REQUEST_IN0 = 0,
parameter USE_RESET_REQUEST_IN1 = 0,
parameter USE_RESET_REQUEST_IN2 = 0,
parameter USE_RESET_REQUEST_IN3 = 0,
parameter USE_RESET_REQUEST_IN4 = 0,
parameter USE_RESET_REQUEST_IN5 = 0,
parameter USE_RESET_REQUEST_IN6 = 0,
parameter USE_RESET_REQUEST_IN7 = 0,
parameter USE_RESET_REQUEST_IN8 = 0,
parameter USE_RESET_REQUEST_IN9 = 0,
parameter USE_RESET_REQUEST_IN10 = 0,
parameter USE_RESET_REQUEST_IN11 = 0,
parameter USE_RESET_REQUEST_IN12 = 0,
parameter USE_RESET_REQUEST_IN13 = 0,
parameter USE_RESET_REQUEST_IN14 = 0,
parameter USE_RESET_REQUEST_IN15 = 0,
parameter OUTPUT_RESET_SYNC_EDGES = "deassert",
parameter SYNC_DEPTH = 2,
parameter RESET_REQUEST_PRESENT = 0,
parameter RESET_REQ_WAIT_TIME = 3,
parameter MIN_RST_ASSERTION_TIME = 11,
parameter RESET_REQ_EARLY_DSRT_TIME = 4,
parameter ADAPT_RESET_REQUEST = 0
)
(
// --------------------------------------
// We support up to 16 reset inputs, for now
// --------------------------------------
input reset_in0,
input reset_in1,
input reset_in2,
input reset_in3,
input reset_in4,
input reset_in5,
input reset_in6,
input reset_in7,
input reset_in8,
input reset_in9,
input reset_in10,
input reset_in11,
input reset_in12,
input reset_in13,
input reset_in14,
input reset_in15,
input reset_req_in0,
input reset_req_in1,
input reset_req_in2,
input reset_req_in3,
input reset_req_in4,
input reset_req_in5,
input reset_req_in6,
input reset_req_in7,
input reset_req_in8,
input reset_req_in9,
input reset_req_in10,
input reset_req_in11,
input reset_req_in12,
input reset_req_in13,
input reset_req_in14,
input reset_req_in15,
input clk,
output reg reset_out,
output reg reset_req
);
// Always use async reset synchronizer if reset_req is used
localparam ASYNC_RESET = (OUTPUT_RESET_SYNC_EDGES == "deassert");
// --------------------------------------
// Local parameter to control the reset_req and reset_out timing when RESET_REQUEST_PRESENT==1
// --------------------------------------
localparam MIN_METASTABLE = 3;
localparam RSTREQ_ASRT_SYNC_TAP = MIN_METASTABLE + RESET_REQ_WAIT_TIME;
localparam LARGER = RESET_REQ_WAIT_TIME > RESET_REQ_EARLY_DSRT_TIME ? RESET_REQ_WAIT_TIME : RESET_REQ_EARLY_DSRT_TIME;
localparam ASSERTION_CHAIN_LENGTH = (MIN_METASTABLE > LARGER) ?
MIN_RST_ASSERTION_TIME + 1 :
(
(MIN_RST_ASSERTION_TIME > LARGER)?
MIN_RST_ASSERTION_TIME + (LARGER - MIN_METASTABLE + 1) + 1 :
MIN_RST_ASSERTION_TIME + RESET_REQ_EARLY_DSRT_TIME + RESET_REQ_WAIT_TIME - MIN_METASTABLE + 2
);
localparam RESET_REQ_DRST_TAP = RESET_REQ_EARLY_DSRT_TIME + 1;
// --------------------------------------
wire merged_reset;
wire merged_reset_req_in;
wire reset_out_pre;
reg reset_out_pre_reg;
wire reset_req_pre;
// Registers and Interconnect
(*preserve*) reg [RSTREQ_ASRT_SYNC_TAP: 0] altera_reset_synchronizer_int_chain;
reg [ASSERTION_CHAIN_LENGTH-1: 0] r_sync_rst_chain;
reg r_sync_rst;
reg r_early_rst;
// --------------------------------------
// "Or" all the input resets together
// --------------------------------------
assign merged_reset = (
reset_in0 |
reset_in1 |
reset_in2 |
reset_in3 |
reset_in4 |
reset_in5 |
reset_in6 |
reset_in7 |
reset_in8 |
reset_in9 |
reset_in10 |
reset_in11 |
reset_in12 |
reset_in13 |
reset_in14 |
reset_in15
);
assign merged_reset_req_in = (
( (USE_RESET_REQUEST_IN0 == 1) ? reset_req_in0 : 1'b0) |
( (USE_RESET_REQUEST_IN1 == 1) ? reset_req_in1 : 1'b0) |
( (USE_RESET_REQUEST_IN2 == 1) ? reset_req_in2 : 1'b0) |
( (USE_RESET_REQUEST_IN3 == 1) ? reset_req_in3 : 1'b0) |
( (USE_RESET_REQUEST_IN4 == 1) ? reset_req_in4 : 1'b0) |
( (USE_RESET_REQUEST_IN5 == 1) ? reset_req_in5 : 1'b0) |
( (USE_RESET_REQUEST_IN6 == 1) ? reset_req_in6 : 1'b0) |
( (USE_RESET_REQUEST_IN7 == 1) ? reset_req_in7 : 1'b0) |
( (USE_RESET_REQUEST_IN8 == 1) ? reset_req_in8 : 1'b0) |
( (USE_RESET_REQUEST_IN9 == 1) ? reset_req_in9 : 1'b0) |
( (USE_RESET_REQUEST_IN10 == 1) ? reset_req_in10 : 1'b0) |
( (USE_RESET_REQUEST_IN11 == 1) ? reset_req_in11 : 1'b0) |
( (USE_RESET_REQUEST_IN12 == 1) ? reset_req_in12 : 1'b0) |
( (USE_RESET_REQUEST_IN13 == 1) ? reset_req_in13 : 1'b0) |
( (USE_RESET_REQUEST_IN14 == 1) ? reset_req_in14 : 1'b0) |
( (USE_RESET_REQUEST_IN15 == 1) ? reset_req_in15 : 1'b0)
);
// --------------------------------------
// And if required, synchronize it to the required clock domain,
// with the correct synchronization type
// --------------------------------------
generate if (OUTPUT_RESET_SYNC_EDGES == "none" && (RESET_REQUEST_PRESENT==0)) begin
assign reset_out_pre = merged_reset;
assign reset_req_pre = merged_reset_req_in;
end else begin
altera_reset_synchronizer
#(
.DEPTH (SYNC_DEPTH),
.ASYNC_RESET(RESET_REQUEST_PRESENT? 1'b1 : ASYNC_RESET)
)
alt_rst_sync_uq1
(
.clk (clk),
.reset_in (merged_reset),
.reset_out (reset_out_pre)
);
altera_reset_synchronizer
#(
.DEPTH (SYNC_DEPTH),
.ASYNC_RESET(0)
)
alt_rst_req_sync_uq1
(
.clk (clk),
.reset_in (merged_reset_req_in),
.reset_out (reset_req_pre)
);
end
endgenerate
generate if ( ( (RESET_REQUEST_PRESENT == 0) && (ADAPT_RESET_REQUEST==0) )|
( (ADAPT_RESET_REQUEST == 1) && (OUTPUT_RESET_SYNC_EDGES != "deassert") ) ) begin
always @* begin
reset_out = reset_out_pre;
reset_req = reset_req_pre;
end
end else if ( (RESET_REQUEST_PRESENT == 0) && (ADAPT_RESET_REQUEST==1) ) begin
wire reset_out_pre2;
altera_reset_synchronizer
#(
.DEPTH (SYNC_DEPTH+1),
.ASYNC_RESET(0)
)
alt_rst_sync_uq2
(
.clk (clk),
.reset_in (reset_out_pre),
.reset_out (reset_out_pre2)
);
always @* begin
reset_out = reset_out_pre2;
reset_req = reset_req_pre;
end
end
else begin
// 3-FF Metastability Synchronizer
//synthesis translate_off
initial
begin
altera_reset_synchronizer_int_chain <= {RSTREQ_ASRT_SYNC_TAP{1'b1}};
end
// Synchronous reset pipe
initial
begin
r_sync_rst_chain <= {ASSERTION_CHAIN_LENGTH{1'b1}};
end
//synthesis translate_on
always @(posedge clk or posedge reset_out_pre)
begin
if (reset_out_pre)
reset_out_pre_reg <= 1'h1;
else
reset_out_pre_reg <= reset_out_pre;
end
always @(posedge clk)
begin
altera_reset_synchronizer_int_chain[RSTREQ_ASRT_SYNC_TAP:0] <=
{altera_reset_synchronizer_int_chain[RSTREQ_ASRT_SYNC_TAP-1:0], reset_out_pre_reg};
end
always @(posedge clk)
begin
if (altera_reset_synchronizer_int_chain[MIN_METASTABLE-1] == 1'b1)
begin
r_sync_rst_chain <= {ASSERTION_CHAIN_LENGTH{1'b1}};
end
else
begin
r_sync_rst_chain <= {1'b0, r_sync_rst_chain[ASSERTION_CHAIN_LENGTH-1:1]};
end
end
// Standard synchronous reset output. From 0-1, the transition lags the early output. For 1->0, the transition
// matches the early input.
if (OUTPUT_RESET_SYNC_EDGES != "deassert" ) begin
always @(posedge clk)
begin
case ({altera_reset_synchronizer_int_chain[RSTREQ_ASRT_SYNC_TAP], r_sync_rst_chain[1], r_sync_rst})
3'b000: r_sync_rst <= 1'b0; // Not reset
3'b001: r_sync_rst <= 1'b0;
3'b010: r_sync_rst <= 1'b0;
3'b011: r_sync_rst <= 1'b1;
3'b100: r_sync_rst <= 1'b1;
3'b101: r_sync_rst <= 1'b1;
3'b110: r_sync_rst <= 1'b1;
3'b111: r_sync_rst <= 1'b1; // In Reset
default: r_sync_rst <= 1'b1;
endcase
case ({r_sync_rst_chain[1], r_sync_rst_chain[RESET_REQ_DRST_TAP] | reset_req_pre})
2'b00: r_early_rst <= 1'b0; // Not reset
2'b01: r_early_rst <= 1'b1; // Coming out of reset
2'b10: r_early_rst <= 1'b0; // Spurious reset - should not be possible via synchronous design.
2'b11: r_early_rst <= 1'b1; // Held in reset
default: r_early_rst <= 1'b1;
endcase
end
end
else begin
always @(posedge clk)
begin
case ({altera_reset_synchronizer_int_chain[RSTREQ_ASRT_SYNC_TAP], r_sync_rst_chain[1], r_sync_rst})
3'b000: r_sync_rst <= 1'b0; // Not reset
3'b001: r_sync_rst <= 1'b0;
3'b010: r_sync_rst <= 1'b0;
3'b011: r_sync_rst <= 1'b1;
3'b100: r_sync_rst <= 1'b1;
3'b101: r_sync_rst <= 1'b1;
3'b110: r_sync_rst <= 1'b1;
3'b111: r_sync_rst <= 1'b1; // In Reset
default: r_sync_rst <= 1'b1;
endcase
end
always @(posedge clk or posedge reset_out_pre )
begin
if(reset_out_pre) begin
r_early_rst <= 1'b1;
end
else begin
case ({r_sync_rst_chain[1], r_sync_rst_chain[RESET_REQ_DRST_TAP] | reset_req_pre})
2'b00: r_early_rst <= 1'b0; // Not reset
2'b01: r_early_rst <= 1'b1; // Coming out of reset
2'b10: r_early_rst <= 1'b0; // Spurious reset - should not be possible via synchronous design.
2'b11: r_early_rst <= 1'b1; // Held in reset
default: r_early_rst <= 1'b1;
endcase
end
end
end
always @* begin
reset_out = r_sync_rst;
reset_req = r_early_rst;
end
end
endgenerate
endmodule
`ifdef QUESTA_INTEL_OEM
`pragma questa_oem_00 "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"
`endif
qsys/qsys_top/altera_reset_controller_1924/synth/altera_reset_synchronizer.v
+89
View File
@@ -0,0 +1,89 @@
// (C) 2001-2026 Altera Corporation. All rights reserved.
// Your use of Altera Corporation's design tools, logic functions and other
// software and tools, and its AMPP partner logic functions, and any output
// files from any of the foregoing (including device programming or simulation
// files), and any associated documentation or information are expressly subject
// to the terms and conditions of the Altera Program License Subscription
// Agreement, Altera IP License Agreement, or other applicable
// license agreement, including, without limitation, that your use is for the
// sole purpose of programming logic devices manufactured by Altera and sold by
// Altera or its authorized distributors. Please refer to the applicable
// agreement for further details.
// $Id: //acds/rel/26.1/ip/iconnect/merlin/altera_reset_controller/altera_reset_synchronizer.v#1 $
// $Revision: #1 $
// $Date: 2026/02/05 $
// -----------------------------------------------
// Reset Synchronizer
// -----------------------------------------------
`timescale 1 ns / 1 ns
module altera_reset_synchronizer
#(
parameter ASYNC_RESET = 1,
parameter DEPTH = 2
)
(
input reset_in /* synthesis ALTERA_ATTRIBUTE = "SUPPRESS_DA_RULE_INTERNAL=R101" */,
input clk,
output reset_out
);
// -----------------------------------------------
// Synchronizer register chain. We cannot reuse the
// standard synchronizer in this implementation
// because our timing constraints are different.
//
// Instead of cutting the timing path to the d-input
// on the first flop we need to cut the aclr input.
//
// We omit the "preserve" attribute on the final
// output register, so that the synthesis tool can
// duplicate it where needed.
// -----------------------------------------------
(*preserve*) reg [DEPTH-1:0] altera_reset_synchronizer_int_chain;
reg altera_reset_synchronizer_int_chain_out;
generate if (ASYNC_RESET) begin
// -----------------------------------------------
// Assert asynchronously, deassert synchronously.
// -----------------------------------------------
always @(posedge clk or posedge reset_in) begin
if (reset_in) begin
altera_reset_synchronizer_int_chain <= {DEPTH{1'b1}};
altera_reset_synchronizer_int_chain_out <= 1'b1;
end
else begin
altera_reset_synchronizer_int_chain[DEPTH-2:0] <= altera_reset_synchronizer_int_chain[DEPTH-1:1];
altera_reset_synchronizer_int_chain[DEPTH-1] <= 0;
altera_reset_synchronizer_int_chain_out <= altera_reset_synchronizer_int_chain[0];
end
end
assign reset_out = altera_reset_synchronizer_int_chain_out;
end else begin
// -----------------------------------------------
// Assert synchronously, deassert synchronously.
// -----------------------------------------------
always @(posedge clk) begin
altera_reset_synchronizer_int_chain[DEPTH-2:0] <= altera_reset_synchronizer_int_chain[DEPTH-1:1];
altera_reset_synchronizer_int_chain[DEPTH-1] <= reset_in;
altera_reset_synchronizer_int_chain_out <= altera_reset_synchronizer_int_chain[0];
end
assign reset_out = altera_reset_synchronizer_int_chain_out;
end
endgenerate
endmodule
`ifdef QUESTA_INTEL_OEM
`pragma questa_oem_00 "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"
`endif