diff --git a/rtl/dma_if_pcie_us_rd.v b/rtl/dma_if_pcie_us_rd.v
index 5ff604247..87bc9796a 100644
--- a/rtl/dma_if_pcie_us_rd.v
+++ b/rtl/dma_if_pcie_us_rd.v
@@ -319,7 +319,7 @@ reg [PCIE_ADDR_WIDTH-1:0] req_pcie_addr;
 reg [PCIE_ADDR_WIDTH-1:0] req_pcie_addr_reg = {PCIE_ADDR_WIDTH{1'b0}}, req_pcie_addr_next;
 reg [RAM_ADDR_WIDTH-1:0] req_addr_reg = {RAM_ADDR_WIDTH{1'b0}}, req_addr_next;
 reg [LEN_WIDTH-1:0] req_op_count_reg = {LEN_WIDTH{1'b0}}, req_op_count_next;
-reg [LEN_WIDTH-1:0] req_tlp_count_reg = {LEN_WIDTH{1'b0}}, req_tlp_count_next;
+reg [12:0] req_tlp_count_reg = 13'd0, req_tlp_count_next;
 
 reg [11:0] lower_addr_reg = 12'd0, lower_addr_next;
 reg [12:0] byte_count_reg = 13'd0, byte_count_next;
diff --git a/rtl/dma_if_pcie_us_wr.v b/rtl/dma_if_pcie_us_wr.v
index 86904e65d..fa30b59af 100644
--- a/rtl/dma_if_pcie_us_wr.v
+++ b/rtl/dma_if_pcie_us_wr.v
@@ -293,7 +293,7 @@ reg [RAM_SEL_WIDTH-1:0] ram_sel_reg = {RAM_SEL_WIDTH{1'b0}}, ram_sel_next;
 reg [RAM_ADDR_WIDTH-1:0] ram_addr_reg = {RAM_ADDR_WIDTH{1'b0}}, ram_addr_next;
 reg [LEN_WIDTH-1:0] op_count_reg = {LEN_WIDTH{1'b0}}, op_count_next;
 reg [LEN_WIDTH-1:0] tr_count_reg = {LEN_WIDTH{1'b0}}, tr_count_next;
-reg [LEN_WIDTH-1:0] tlp_count_reg = {LEN_WIDTH{1'b0}}, tlp_count_next;
+reg [12:0] tlp_count_reg = 13'd0, tlp_count_next;
 
 reg [PCIE_ADDR_WIDTH-1:0] read_pcie_addr_reg = {PCIE_ADDR_WIDTH{1'b0}}, read_pcie_addr_next;
 reg [RAM_SEL_WIDTH-1:0] read_ram_sel_reg = {RAM_SEL_WIDTH{1'b0}}, read_ram_sel_next;
diff --git a/rtl/pcie_us_axi_dma_rd.v b/rtl/pcie_us_axi_dma_rd.v
index e6bf3cc3e..4bbf8cc11 100644
--- a/rtl/pcie_us_axi_dma_rd.v
+++ b/rtl/pcie_us_axi_dma_rd.v
@@ -329,7 +329,7 @@ reg [PCIE_ADDR_WIDTH-1:0] req_pcie_addr;
 reg [PCIE_ADDR_WIDTH-1:0] req_pcie_addr_reg = {PCIE_ADDR_WIDTH{1'b0}}, req_pcie_addr_next;
 reg [AXI_ADDR_WIDTH-1:0] req_axi_addr_reg = {AXI_ADDR_WIDTH{1'b0}}, req_axi_addr_next;
 reg [LEN_WIDTH-1:0] req_op_count_reg = {LEN_WIDTH{1'b0}}, req_op_count_next;
-reg [LEN_WIDTH-1:0] req_tlp_count_reg = {LEN_WIDTH{1'b0}}, req_tlp_count_next;
+reg [12:0] req_tlp_count_reg = 13'd0, req_tlp_count_next;
 
 reg [11:0] lower_addr_reg = 12'd0, lower_addr_next;
 reg [12:0] byte_count_reg = 13'd0, byte_count_next;
diff --git a/rtl/pcie_us_axi_dma_wr.v b/rtl/pcie_us_axi_dma_wr.v
index 7fc2983bf..b3ae195c8 100644
--- a/rtl/pcie_us_axi_dma_wr.v
+++ b/rtl/pcie_us_axi_dma_wr.v
@@ -280,7 +280,7 @@ reg [PCIE_ADDR_WIDTH-1:0] pcie_addr_reg = {PCIE_ADDR_WIDTH{1'b0}}, pcie_addr_nex
 reg [AXI_ADDR_WIDTH-1:0] axi_addr_reg = {AXI_ADDR_WIDTH{1'b0}}, axi_addr_next;
 reg [LEN_WIDTH-1:0] op_count_reg = {LEN_WIDTH{1'b0}}, op_count_next;
 reg [LEN_WIDTH-1:0] tr_count_reg = {LEN_WIDTH{1'b0}}, tr_count_next;
-reg [LEN_WIDTH-1:0] tlp_count_reg = {LEN_WIDTH{1'b0}}, tlp_count_next;
+reg [12:0] tlp_count_reg = 13'd0, tlp_count_next;
 
 reg [PCIE_ADDR_WIDTH-1:0] tlp_addr_reg = {PCIE_ADDR_WIDTH{1'b0}}, tlp_addr_next;
 reg [11:0] tlp_len_reg = 12'd0, tlp_len_next;