test_512.v
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//**************************************************************************************************
// K9F1208U0M, 512Mbit(x8) 1st Generation NAND FLASH TIMING VECTOR FOR PROGRAM MODE TEST
// Programmed By NAND Flash Memory Product Planning Team, Samsung Semiconductor Co. LTD.
// NOTICE:
// - This test vector file provides simultaneous PROGRAM/ERASE capability up Max.four PAGES/BLOCKS.
// - And provides also COPY-BACK / PRELOAD functions.
// Rev. 1.1
//**************************************************************************************************
`timescale 1ns/1ps
`define PWRUP 5000 // Wait Time
`define TPROGRAM 200100 // Program Time
`define TERASE 2000100 // Erase Time
`define TREAD 12100 // Data Transfer form Cell to Register
`define TDBSY 1500 // Dummy Busy Time for Multi Plane Program
module nand_driver();
reg [7:0] io;
wire [7:0] i_o=io;
reg ceb, cle, ale, web, reb, wpb;
integer i;
km29u512 flash(.ceb(ceb), .cle(cle), .ale(ale),
.web(web), .reb(reb), .io(i_o),
.wpb(wpb), .rbb(rbb));
initial
begin
$dumpvars();
$dumpfile("test.dump");
end
initial
begin
ceb = 1;
cle = 0;
ale = 0;
web = 1;
reb = 1;
io = 8'hzz;
wpb = 1;
end
// timing for command latch
task cmd_latch;
input [7:0] cmd;
begin
#20
ceb = 0;
web = 1;
cle = 0;
ale = 0;
#10
cle = 1;
#1
web = 0;
io = cmd;
#26
web = 1;
#11
io = 8'hzz;
#6
cle = 0;
#10
ceb = 1;
end
endtask
// timing for address latch
task add_latch;
input [7:0] add;
begin
ceb = 0;
#20
cle = 0;
ale = 1;
#1
web = 0;
#5
io = add;
#22
web = 1;
#11
io = 8'hzz;
#6
ale = 0;
ceb = 0;
end
endtask
// timing for data latch
task data_latch;
input [10:0] cnt;
input [7:0] data;
begin
for (i=0; i < cnt; i=i+1)
begin
#20
ceb = 0;
#1
web = 0;
#5
io = data + i;
#22
web = 1;
#11
io = 8'hzz;
end
end
endtask
// timing for serial read
task serial_read;
input [16:0] cnt;
begin
cle = 0;
ale = 0;
web = 1;
for ( i=0; i < cnt; i = i+1)
begin
#16
reb = 0;
#36
reb = 1;
end
end
endtask
// timing for serial read (/CE don't care)
task serial_read1;
input [16:0] cnt1;
begin
cle = 0;
ale = 0;
web = 1;
for ( i=0; i < cnt1; i = i+1)
begin
#26
ceb = 0;
reb = 0;
#56
reb = 1;
ceb = 1;
end
end
endtask
//******************************
// User Test Vector Here
//******************************
initial
begin
#`PWRUP
// This function is PRELOAD function and you can read external data(2blocks size=528Byte*32pages*2blocks=33792Bytes) from External_File.txt.
// If you don't want to use this operating, you have to remove this function.
cmd_latch(8'h00);
add_latch(8'h00);
add_latch(8'h00);
add_latch(8'h00);
add_latch(8'h00);
#`TREAD
serial_read(16'h210); // Sequential read from the 1st block's 1st page.
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
ceb = 1'b1;
#1000
cmd_latch(8'h00);
add_latch(8'h00);
add_latch(8'h20);
add_latch(8'h00);
add_latch(8'h00);
#`TREAD
serial_read(16'h210); // Sequential read from the 2nd block's 1st page.
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
#`TREAD
serial_read(16'h210);
ceb = 1'b1;
#10000
// ID Read
cmd_latch(8'h90);
add_latch(8'h00);
#100
serial_read(16'h4);
#20000
// 1Block Erase
cmd_latch(8'h60);
add_latch(8'h40);
add_latch(8'h00);
add_latch(8'h00);
cmd_latch(8'hD0);
#`TERASE
cmd_latch(8'h70); // Status Check Command
ceb = 1'b0;
#18
serial_read(16'h1);
ceb = 1'b1;
#1000
// Multi_Plane Block(4Blocks) Erase
// NOTICE :
// You can simultaneously erase only one block from each plane, up to four blocks.
cmd_latch(8'h60);
add_latch(8'h80);
add_latch(8'h00);
add_latch(8'h00);
#230
cmd_latch(8'h60);
add_latch(8'ha0);
add_latch(8'h00);
add_latch(8'h00);
#230
cmd_latch(8'h60);
add_latch(8'hc0);
add_latch(8'h00);
add_latch(8'h00);
#230
cmd_latch(8'h60);
add_latch(8'he0);
add_latch(8'h00);
add_latch(8'h00);
cmd_latch(8'hD0);
#`TERASE
cmd_latch(8'h71); // Multi_Status Check Command
ceb = 1'b0;
#18
serial_read(16'h1);
ceb = 1'b1;
#1000
// Multi_Plane Page(4pages) Program
// NOTICE :
// While any block in each plane may be addressable for Multi_Plane Page Program, the four least
// significant address(A9-A13) for the selected pages at one operation must be the same.
cmd_latch(8'h80);
add_latch(8'h00);
add_latch(8'hc1);
add_latch(8'h00);
add_latch(8'h00);
data_latch(10'h210,8'h00);
cmd_latch(8'h11);
#`TDBSY
cmd_latch(8'h80);
add_latch(8'h00);
add_latch(8'ha1);
add_latch(8'h00);
add_latch(8'h00);
data_latch(10'h210,8'h10);
cmd_latch(8'h11);
#`TDBSY
cmd_latch(8'h80);
add_latch(8'h00);
add_latch(8'he1);
add_latch(8'h00);
add_latch(8'h00);
data_latch(10'h210,8'h20);
cmd_latch(8'h11);
#`TDBSY
cmd_latch(8'h80);
add_latch(8'h00);
add_latch(8'h81);
add_latch(8'h00);
add_latch(8'h00);
data_latch(10'h210,8'h30);
cmd_latch(8'h10);
#`TPROGRAM
cmd_latch(8'h71); // Multi_Status Check Command
ceb = 1'b0;
#18
serial_read(16'h1);
ceb = 1'b1;
#1000
// Copy_Back #1 ( Moving programmed 528-Byte to lower-address from current address )
// NOTICE: Whenever you use this function, you have to check that address 14 ,the plane address, of source and destination
// page address must be same.
cmd_latch(8'h00);
add_latch(8'h00);
add_latch(8'ha1); //source page address
add_latch(8'h00);
add_latch(8'h00);
#`TREAD
cmd_latch(8'h8a);
add_latch(8'h00);
add_latch(8'h41); //destination page address
add_latch(8'h00);
add_latch(8'h00);
#`TPROGRAM
cmd_latch(8'h70); // Status Check Command
ceb = 1'b0;
serial_read(16'h1);
ceb = 1'b1;
#1000
// Copy_Back #2 ( Moving programmed 528-Byte to higher-address from current address )
// NOTICE: Whenever you use this function, you have to check that address 14 ,the plane address, of source and destination
// page address must be same.
cmd_latch(8'h00);
add_latch(8'h00);
add_latch(8'hc1); //source page address
add_latch(8'h00);
add_latch(8'h00);
#`TREAD
cmd_latch(8'h8a);
add_latch(8'h00);
add_latch(8'he2); //destination page address
add_latch(8'h00);
add_latch(8'h00);
#`TPROGRAM
cmd_latch(8'h70);
ceb = 1'b0;
serial_read(16'h1);
ceb = 1'b1;
#1000
// Sequential Read
cmd_latch(8'h00);
add_latch(8'h00);
add_latch(8'h41);
add_latch(8'h00);
add_latch(8'h00);
#`TREAD
serial_read(16'h210);
ceb = 1'b1;
#1000
cmd_latch(8'h00);
add_latch(8'h00);
add_latch(8'h81);
add_latch(8'h00);
add_latch(8'h00);
#`TREAD
serial_read(16'h210);
ceb = 1'b1;
#1000
cmd_latch(8'h00);
add_latch(8'h00);
add_latch(8'he1);
add_latch(8'h00);
add_latch(8'h00);
#`TREAD
serial_read(16'h210);
ceb = 1'b1;
#1000
cmd_latch(8'h00);
add_latch(8'h00);
add_latch(8'he2);
add_latch(8'h00);
add_latch(8'h00);
#`TREAD
serial_read1(16'h210);
ceb = 1'b1;
#1000
$finish;
end
endmodule