diff --git a/rtl/controller/src/dma_controller.sv b/rtl/controller/src/dma_controller.sv
new file mode 100644
index 0000000..d6fc68c
--- /dev/null
+++ b/rtl/controller/src/dma_controller.sv
@@ -0,0 +1,49 @@
+module dma_controller
+#(
+parameter AXI_ADDR_WIDTH = 16,
+parameter LEN_WIDTH = 20,
+parameter TAG_WIDTH = 8,
+parameter AXIS_ID_WIDTH = 8,
+parameter AXIS_DEST_WIDTH = 8,
+parameter AXIS_USER_WIDTH = 1
+)
+(
+input dma_clk,
+input rst,
+input send,
+input [127:0] desc_read,
+input [127:0] desc_write,
+input [127:0] status_read,
+input [127:0] status_write,
+//descriptor read
+    output  wire [AXI_ADDR_WIDTH-1:0]  s_axis_read_desc_addr,
+    output  wire [LEN_WIDTH-1:0]       s_axis_read_desc_len,
+    output  wire [TAG_WIDTH-1:0]       s_axis_read_desc_tag,
+    output  wire [AXIS_ID_WIDTH-1:0]   s_axis_read_desc_id,
+    output  wire [AXIS_DEST_WIDTH-1:0] s_axis_read_desc_dest,
+    output  wire [AXIS_USER_WIDTH-1:0] s_axis_read_desc_user,
+    output  wire                       s_axis_read_desc_valid,
+    input   wire                       s_axis_read_desc_ready,
+
+// descriptor write
+    output  wire [AXI_ADDR_WIDTH-1:0]  s_axis_write_desc_addr,
+    output  wire [LEN_WIDTH-1:0]       s_axis_write_desc_len,
+    output  wire [TAG_WIDTH-1:0]       s_axis_write_desc_tag,
+    output  wire                       s_axis_write_desc_valid,
+    input   wire                       s_axis_write_desc_ready,
+
+// status read
+    input wire [TAG_WIDTH-1:0]       m_axis_read_desc_status_tag,
+    input wire [3:0]                 m_axis_read_desc_status_error,
+    input wire                       m_axis_read_desc_status_valid,
+
+// status write
+    input wire [LEN_WIDTH-1:0]       m_axis_write_desc_status_len,
+    input wire [TAG_WIDTH-1:0]       m_axis_write_desc_status_tag,
+    input wire [AXIS_ID_WIDTH-1:0]   m_axis_write_desc_status_id,
+    input wire [AXIS_DEST_WIDTH-1:0] m_axis_write_desc_status_dest,
+    input wire [AXIS_USER_WIDTH-1:0] m_axis_write_desc_status_user,
+    input wire [3:0]                 m_axis_write_desc_status_error,
+    input wire                       m_axis_write_desc_status_valid
+);
+endmodule
\ No newline at end of file