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/*
 * ptp_parser.v
 *
 * Copyright (c) 2012, BABY&HW. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301  USA
 */
 
`timescale 1ns/1ns
 
module ptp_parser (
  input        clk, rst,
  input [31:0] int_data,
  input        int_valid,
  input        int_sop,
  input        int_eop,
  input [ 1:0] int_mod,
 
  output reg        ptp_found,
  output reg [31:0] ptp_infor
);
 
reg [31:0] int_data_d1;
always @(posedge rst or posedge clk) begin
  if (rst) begin
    int_data_d1  <= 32'h00000000;
  end
  else begin
    if (int_valid) begin
      int_data_d1  <= int_data;
    end
  end
end
 
// packet parser: counter
reg [ 9:0] int_cnt, bypass_ipv4_cnt, bypass_ipv6_cnt, bypass_udp_cnt, ptp_cnt;
reg bypass_vlan, ptp_l2, bypass_mpls, bypass_ipv4, bypass_ipv6, found_udp, bypass_udp, ptp_l4, ptp_event;
always @(posedge rst or posedge clk) begin
  if (rst) begin
    int_cnt <= 10'd0;
    bypass_ipv4_cnt <= 10'd0;
    bypass_ipv6_cnt <= 10'd0;
    bypass_udp_cnt <= 10'd0;
  end
  else begin
    if (int_valid && int_sop)
      int_cnt <= 10'd0;
    else if (int_valid)
      int_cnt <= int_cnt + 10'd1 - bypass_vlan - bypass_mpls - (bypass_ipv4 || bypass_ipv6 || bypass_udp);
 
    if (int_valid && int_sop)
      bypass_ipv4_cnt <= 10'd0;
    else if (int_valid && bypass_ipv4)
      bypass_ipv4_cnt <= bypass_ipv4_cnt + 10'd1;
 
    if (int_valid && int_sop)
      bypass_ipv6_cnt <= 10'd0;
    else if (int_valid && bypass_ipv6)
      bypass_ipv6_cnt <= bypass_ipv6_cnt + 10'd1;
 
    if (int_valid && int_sop)
      bypass_udp_cnt <= 10'd0;
    else if (int_valid && bypass_udp)
      bypass_udp_cnt <= bypass_udp_cnt + 10'd1;
 
    if (int_valid && int_sop)
      ptp_cnt <= 10'd0;
    else if (int_valid && (ptp_l2 || (bypass_udp_cnt>=10'd2 && ptp_l4)))
      ptp_cnt <= ptp_cnt + 10'd1;
  end
end
 
// packet parser: comparator
always @(posedge rst or posedge clk) begin
  if (rst) begin
    bypass_vlan  <= 1'b0;
    bypass_mpls  <= 1'b0;
    bypass_ipv4  <= 1'b0;
    bypass_ipv6  <= 1'b0;
    found_udp    <= 1'b0;
    bypass_udp   <= 1'b0;
    ptp_l2    <= 1'b0;
    ptp_l4    <= 1'b0;
    ptp_event <= 1'b0;
  end
  else if (int_valid && int_sop) begin
    bypass_vlan  <= 1'b0;
    bypass_mpls  <= 1'b0;
    bypass_ipv4  <= 1'b0;
    bypass_ipv6  <= 1'b0;
    found_udp    <= 1'b0;
    bypass_udp   <= 1'b0;
    ptp_l2    <= 1'b0;
    ptp_l4    <= 1'b0;
    ptp_event <= 1'b0;
  end
  else begin
    // bypass vlan
    if      (int_valid && int_cnt==10'd3 && int_data[31:16]==16'h8100)  // ether_type == cvlan
      bypass_vlan <= 1'b1;
    else if (int_valid && int_cnt==10'd3 && int_data[31:16]==16'h9100)  // ether_type == svlan
      bypass_vlan <= 1'b1;
    else if (int_valid && int_cnt==10'd4 && int_data[31:16]==16'h8100 && bypass_vlan)  // svlan_type == cvlan
      bypass_vlan <= 1'b1;
    else if (int_valid && bypass_vlan)
      bypass_vlan <= 1'b0;
 
    // bypass mpls
    if      (int_valid && (int_cnt==10'd3 || bypass_vlan && int_cnt==10'd4) &&
            (int_data[31:16]==16'h8847 || int_data[31:16]==16'h8848))  // ether_type == mpls
      bypass_mpls <= 1'b1;
    else if (int_valid &&  int_cnt==10'd4 && bypass_mpls &&
             int_data[24]==1'b0)  // bottom of label stack == 0
      bypass_mpls <= 1'b1;
    else if (int_valid && bypass_mpls)
      bypass_mpls <= 1'b0;
 
    // bypass ipv4
    if      (int_valid && (int_cnt==10'd3 || (bypass_vlan || bypass_mpls) && int_cnt==10'd4) && bypass_ipv4_cnt==10'd0 &&
            (int_data[31:16]==16'h0800 || bypass_mpls) && int_data[15:12]==4'h4)  // ether_type == ipv4, ip_version == 4
      bypass_ipv4 <= 1'b1;
    else if (int_valid && bypass_ipv4_cnt==10'd4)
      bypass_ipv4 <= 1'b0;
 
    // bypass ipv6
    if      (int_valid && (int_cnt==10'd3 || (bypass_vlan || bypass_mpls) && int_cnt==10'd4) && bypass_ipv6_cnt==10'd0 &&
            (int_data[31:16]==16'h86dd || bypass_mpls) && int_data[15:12]==4'h6)  // ether_type == ipv6, ip_version == 6
      bypass_ipv6 <= 1'b1;
    else if (int_valid && bypass_ipv6_cnt==10'd9)
      bypass_ipv6 <= 1'b0;
 
    // check if it is UDP
    if      (int_valid && bypass_ipv4_cnt==10'd1 && int_data[ 7: 0]== 8'h11)  // ipv4_protocol == udp
      found_udp <= 1'b1;
    else if (int_valid && bypass_ipv6_cnt==10'd1 && int_data[31:24]== 8'h11)  // ipv6_protocol == udp
      found_udp <= 1'b1;
 
    // bypass udp
    if      (int_valid && bypass_ipv4_cnt==10'd4 && bypass_udp_cnt==10'd0 && found_udp)  // ipv4_udp
      bypass_udp <= 1'b1;
    else if (int_valid && bypass_ipv6_cnt==10'd9 && bypass_udp_cnt==10'd0 && found_udp)  // ipv6_udp
      bypass_udp <= 1'b1;
    else if (int_valid && bypass_udp_cnt==10'd2)
      bypass_udp <= 1'b0;
 
    // check if it is L2 PTP
    if (int_valid && (int_cnt==10'd3 || bypass_vlan && int_cnt==10'd4) && int_data[31:16]==16'h88F7)  // ether_type == ptp
      ptp_l2 <= 1'b1;
    // check if it is L4 PTP
    if (int_valid && bypass_udp_cnt==10'd0 && bypass_udp &&
       (int_data[31:16]==16'h013f || int_data[31:16]==16'h0140))  // udp_dest_port == ptp_event || ptp_general
      ptp_l4 <= 1'b1;
 
    // check if it is PTP Event message
    if      (int_valid && (int_cnt==10'd3 || bypass_vlan && int_cnt==10'd4) && int_data[31:16]==16'h88F7 &&
            (int_data[11: 8]>= 4'h0 && int_data[11:8]<=4'h7))  // ptp_message_id == ptp_event
      ptp_event <= 1'b1;
    else if (int_valid && int_cnt==10'd4 && bypass_udp_cnt==10'd1 && ptp_l4 &&
            (int_data[11: 8]>= 4'h0 && int_data[11:8]<=4'h7))  // ptp_message_id == ptp_event
      ptp_event <= 1'b1;
  end
end
 
// ptp message
reg [31:0] ptp_data;
reg [ 3:0] ptp_msgid;
reg [15:0] ptp_seqid;
reg [11:0] ptp_cksum;
always @(posedge rst or posedge clk) begin
  if (rst) begin
    ptp_data  <= 32'd0;
    ptp_msgid <= 4'd0;
    ptp_seqid <= 16'd0;
    ptp_cksum <= 12'd0;
  end
  else if (int_valid && int_sop) begin
    ptp_data  <= 32'd0;
    ptp_msgid <= 4'd0;
    ptp_seqid <= 16'd0;
    ptp_cksum <= 12'd0;
  end
  else begin
    // get PTP identification information as additional information to Timestamp
    // ptp message body
    if (int_valid && (ptp_l2 || (bypass_udp_cnt>=10'd2 && ptp_l4)))
      ptp_data <= {int_data_d1[15:0], int_data[31:16]};
    // message id
    if (int_valid && ptp_cnt==10'd1)
      ptp_msgid <= ptp_data[27:24];
    // sequence id
    if (int_valid && ptp_cnt==10'd8)
      ptp_seqid <= ptp_data[15:0];
    // sum up clock id and source port id
    if (int_valid && ptp_cnt==10'd6)
      ptp_cksum <= ptp_data[31:24] + ptp_data[23:16] + ptp_data[15: 8] + ptp_data[ 7: 0] + ptp_cksum;
    if (int_valid && ptp_cnt==10'd7)
      ptp_cksum <= ptp_data[31:24] + ptp_data[23:16] + ptp_data[15: 8] + ptp_data[ 7: 0] + ptp_cksum;
    if (int_valid && ptp_cnt==10'd8)
      ptp_cksum <= ptp_data[31:24] + ptp_data[23:16]                                     + ptp_cksum;
  end
end
 
// parser output
always @(posedge rst or posedge clk) begin
  if (rst) begin
    ptp_found <=  1'b0;
    ptp_infor <= 32'd0;
  end
  else if (int_valid && int_sop) begin
    ptp_found <=  1'b0;
    ptp_infor <= 32'd0;
  end
  else if (int_valid && ptp_cnt==10'd9) begin
    ptp_found <=  ptp_event;
    ptp_infor <= {ptp_msgid, ptp_cksum, ptp_seqid};  // 4+12+16
  end
end
 
endmodule

Line No.	Rev	Author	Line
1	34	edn_walter	`/*`
2	38	edn_walter	`* ptp_parser.v`
3	34	edn_walter	`*`
4	37	edn_walter	`* Copyright (c) 2012, BABY&HW. All rights reserved.`
5	34	edn_walter	`*`
6			`* This library is free software; you can redistribute it and/or`
7			`* modify it under the terms of the GNU Lesser General Public`
8			`* License as published by the Free Software Foundation; either`
9			`* version 2.1 of the License, or (at your option) any later version.`
10			`*`
11			`* This library is distributed in the hope that it will be useful,`
12			`* but WITHOUT ANY WARRANTY; without even the implied warranty of`
13			`* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU`
14			`* Lesser General Public License for more details.`
15			`*`
16			`* You should have received a copy of the GNU Lesser General Public`
17			`* License along with this library; if not, write to the Free Software`
18			`* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,`
19			`* MA 02110-1301 USA`
20			`*/`
21
22	4	ash_riple	`timescale 1ns/1ns
23
24			`module ptp_parser (`
25			`input clk, rst,`
26	10	edn_walter	`input [31:0] int_data,`
27			`input int_valid,`
28			`input int_sop,`
29			`input int_eop,`
30			`input [ 1:0] int_mod,`
31	4	ash_riple
32			`output reg ptp_found,`
33	37	edn_walter	`output reg [31:0] ptp_infor`
34	4	ash_riple	`);`
35
36	10	edn_walter	`reg [31:0] int_data_d1;`
37	4	ash_riple	`always @(posedge rst or posedge clk) begin`
38			`if (rst) begin`
39	10	edn_walter	`int_data_d1 <= 32'h00000000;`
40	4	ash_riple	`end`
41			`else begin`
42	10	edn_walter	`if (int_valid) begin`
43			`int_data_d1 <= int_data;`
44	4	ash_riple	`end`
45			`end`
46			`end`
47
48	29	edn_walter	`// packet parser: counter`
49	10	edn_walter	`reg [ 9:0] int_cnt, bypass_ipv4_cnt, bypass_ipv6_cnt, bypass_udp_cnt, ptp_cnt;`
50	35	edn_walter	`reg bypass_vlan, ptp_l2, bypass_mpls, bypass_ipv4, bypass_ipv6, found_udp, bypass_udp, ptp_l4, ptp_event;`
51	4	ash_riple	`always @(posedge rst or posedge clk) begin`
52	10	edn_walter	`if (rst) begin`
53			`int_cnt <= 10'd0;`
54			`bypass_ipv4_cnt <= 10'd0;`
55	11	edn_walter	`bypass_ipv6_cnt <= 10'd0;`
56	10	edn_walter	`bypass_udp_cnt <= 10'd0;`
57			`end`
58			`else begin`
59	29	edn_walter	`if (int_valid && int_sop)`
60	10	edn_walter	`int_cnt <= 10'd0;`
61	29	edn_walter	`else if (int_valid)`
62	35	edn_walter	`int_cnt <= int_cnt + 10'd1 - bypass_vlan - bypass_mpls - (bypass_ipv4 \|\| bypass_ipv6 \|\| bypass_udp);`
63	10	edn_walter
64	29	edn_walter	`if (int_valid && int_sop)`
65	10	edn_walter	`bypass_ipv4_cnt <= 10'd0;`
66	29	edn_walter	`else if (int_valid && bypass_ipv4)`
67	10	edn_walter	`bypass_ipv4_cnt <= bypass_ipv4_cnt + 10'd1;`
68
69	29	edn_walter	`if (int_valid && int_sop)`
70	11	edn_walter	`bypass_ipv6_cnt <= 10'd0;`
71	29	edn_walter	`else if (int_valid && bypass_ipv6)`
72	11	edn_walter	`bypass_ipv6_cnt <= bypass_ipv6_cnt + 10'd1;`
73
74	29	edn_walter	`if (int_valid && int_sop)`
75	10	edn_walter	`bypass_udp_cnt <= 10'd0;`
76	29	edn_walter	`else if (int_valid && bypass_udp)`
77	10	edn_walter	`bypass_udp_cnt <= bypass_udp_cnt + 10'd1;`
78	29	edn_walter
79			`if (int_valid && int_sop)`
80			`ptp_cnt <= 10'd0;`
81			`else if (int_valid && (ptp_l2 \|\| (bypass_udp_cnt>=10'd2 && ptp_l4)))`
82			`ptp_cnt <= ptp_cnt + 10'd1;`
83	10	edn_walter	`end`
84	4	ash_riple	`end`
85
86	29	edn_walter	`// packet parser: comparator`
87	4	ash_riple	`always @(posedge rst or posedge clk) begin`
88			`if (rst) begin`
89	10	edn_walter	`bypass_vlan <= 1'b0;`
90	35	edn_walter	`bypass_mpls <= 1'b0;`
91	10	edn_walter	`bypass_ipv4 <= 1'b0;`
92	11	edn_walter	`bypass_ipv6 <= 1'b0;`
93	10	edn_walter	`found_udp <= 1'b0;`
94			`bypass_udp <= 1'b0;`
95			`ptp_l2 <= 1'b0;`
96			`ptp_l4 <= 1'b0;`
97	4	ash_riple	`ptp_event <= 1'b0;`
98	10	edn_walter	`end`
99	29	edn_walter	`else if (int_valid && int_sop) begin`
100	10	edn_walter	`bypass_vlan <= 1'b0;`
101	35	edn_walter	`bypass_mpls <= 1'b0;`
102	10	edn_walter	`bypass_ipv4 <= 1'b0;`
103	11	edn_walter	`bypass_ipv6 <= 1'b0;`
104	10	edn_walter	`found_udp <= 1'b0;`
105			`bypass_udp <= 1'b0;`
106			`ptp_l2 <= 1'b0;`
107			`ptp_l4 <= 1'b0;`
108			`ptp_event <= 1'b0;`
109			`end`
110			`else begin`
111			`// bypass vlan`
112	29	edn_walter	`if (int_valid && int_cnt==10'd3 && int_data[31:16]==16'h8100) // ether_type == cvlan`
113	10	edn_walter	`bypass_vlan <= 1'b1;`
114	29	edn_walter	`else if (int_valid && int_cnt==10'd3 && int_data[31:16]==16'h9100) // ether_type == svlan`
115	12	edn_walter	`bypass_vlan <= 1'b1;`
116	29	edn_walter	`else if (int_valid && int_cnt==10'd4 && int_data[31:16]==16'h8100 && bypass_vlan) // svlan_type == cvlan`
117	12	edn_walter	`bypass_vlan <= 1'b1;`
118	29	edn_walter	`else if (int_valid && bypass_vlan)`
119	10	edn_walter	`bypass_vlan <= 1'b0;`
120
121	35	edn_walter	`// bypass mpls`
122			`if (int_valid && (int_cnt==10'd3 \|\| bypass_vlan && int_cnt==10'd4) &&`
123			`(int_data[31:16]==16'h8847 \|\| int_data[31:16]==16'h8848)) // ether_type == mpls`
124			`bypass_mpls <= 1'b1;`
125			`else if (int_valid && int_cnt==10'd4 && bypass_mpls &&`
126			`int_data[24]==1'b0) // bottom of label stack == 0`
127			`bypass_mpls <= 1'b1;`
128			`else if (int_valid && bypass_mpls)`
129			`bypass_mpls <= 1'b0;`
130
131	10	edn_walter	`// bypass ipv4`
132	35	edn_walter	`if (int_valid && (int_cnt==10'd3 \|\| (bypass_vlan \|\| bypass_mpls) && int_cnt==10'd4) && bypass_ipv4_cnt==10'd0 &&`
133			`(int_data[31:16]==16'h0800 \|\| bypass_mpls) && int_data[15:12]==4'h4) // ether_type == ipv4, ip_version == 4`
134	10	edn_walter	`bypass_ipv4 <= 1'b1;`
135	29	edn_walter	`else if (int_valid && bypass_ipv4_cnt==10'd4)`
136	10	edn_walter	`bypass_ipv4 <= 1'b0;`
137
138			`// bypass ipv6`
139	35	edn_walter	`if (int_valid && (int_cnt==10'd3 \|\| (bypass_vlan \|\| bypass_mpls) && int_cnt==10'd4) && bypass_ipv6_cnt==10'd0 &&`
140			`(int_data[31:16]==16'h86dd \|\| bypass_mpls) && int_data[15:12]==4'h6) // ether_type == ipv6, ip_version == 6`
141	11	edn_walter	`bypass_ipv6 <= 1'b1;`
142	29	edn_walter	`else if (int_valid && bypass_ipv6_cnt==10'd9)`
143	11	edn_walter	`bypass_ipv6 <= 1'b0;`
144	10	edn_walter
145			`// check if it is UDP`
146	29	edn_walter	`if (int_valid && bypass_ipv4_cnt==10'd1 && int_data[ 7: 0]== 8'h11) // ipv4_protocol == udp`
147	10	edn_walter	`found_udp <= 1'b1;`
148	29	edn_walter	`else if (int_valid && bypass_ipv6_cnt==10'd1 && int_data[31:24]== 8'h11) // ipv6_protocol == udp`
149	11	edn_walter	`found_udp <= 1'b1;`
150	10	edn_walter
151			`// bypass udp`
152	29	edn_walter	`if (int_valid && bypass_ipv4_cnt==10'd4 && bypass_udp_cnt==10'd0 && found_udp) // ipv4_udp`
153	10	edn_walter	`bypass_udp <= 1'b1;`
154	29	edn_walter	`else if (int_valid && bypass_ipv6_cnt==10'd9 && bypass_udp_cnt==10'd0 && found_udp) // ipv6_udp`
155	11	edn_walter	`bypass_udp <= 1'b1;`
156	29	edn_walter	`else if (int_valid && bypass_udp_cnt==10'd2)`
157	11	edn_walter	`bypass_udp <= 1'b0;`
158	10	edn_walter
159			`// check if it is L2 PTP`
160	29	edn_walter	`if (int_valid && (int_cnt==10'd3 \|\| bypass_vlan && int_cnt==10'd4) && int_data[31:16]==16'h88F7) // ether_type == ptp`
161	10	edn_walter	`ptp_l2 <= 1'b1;`
162			`// check if it is L4 PTP`
163	29	edn_walter	`if (int_valid && bypass_udp_cnt==10'd0 && bypass_udp &&`
164			`(int_data[31:16]==16'h013f \|\| int_data[31:16]==16'h0140)) // udp_dest_port == ptp_event \|\| ptp_general`
165	10	edn_walter	`ptp_l4 <= 1'b1;`
166
167			`// check if it is PTP Event message`
168	35	edn_walter	`if (int_valid && (int_cnt==10'd3 \|\| bypass_vlan && int_cnt==10'd4) && int_data[31:16]==16'h88F7 &&`
169	37	edn_walter	`(int_data[11: 8]>= 4'h0 && int_data[11:8]<=4'h7)) // ptp_message_id == ptp_event`
170	10	edn_walter	`ptp_event <= 1'b1;`
171	35	edn_walter	`else if (int_valid && int_cnt==10'd4 && bypass_udp_cnt==10'd1 && ptp_l4 &&`
172	37	edn_walter	`(int_data[11: 8]>= 4'h0 && int_data[11:8]<=4'h7)) // ptp_message_id == ptp_event`
173	10	edn_walter	`ptp_event <= 1'b1;`
174			`end`
175			`end`
176
177	29	edn_walter	`// ptp message`
178			`reg [31:0] ptp_data;`
179	37	edn_walter	`reg [ 3:0] ptp_msgid;`
180			`reg [15:0] ptp_seqid;`
181			`reg [11:0] ptp_cksum;`
182	10	edn_walter	`always @(posedge rst or posedge clk) begin`
183			`if (rst) begin`
184	29	edn_walter	`ptp_data <= 32'd0;`
185	7	edn_walter	`ptp_msgid <= 4'd0;`
186	8	edn_walter	`ptp_seqid <= 16'd0;`
187	37	edn_walter	`ptp_cksum <= 12'd0;`
188	4	ash_riple	`end`
189	29	edn_walter	`else if (int_valid && int_sop) begin`
190			`ptp_data <= 32'd0;`
191	7	edn_walter	`ptp_msgid <= 4'd0;`
192	8	edn_walter	`ptp_seqid <= 16'd0;`
193	37	edn_walter	`ptp_cksum <= 12'd0;`
194	4	ash_riple	`end`
195			`else begin`
196	10	edn_walter	`// get PTP identification information as additional information to Timestamp`
197	29	edn_walter	`// ptp message body`
198			`if (int_valid && (ptp_l2 \|\| (bypass_udp_cnt>=10'd2 && ptp_l4)))`
199			`ptp_data <= {int_data_d1[15:0], int_data[31:16]};`
200	10	edn_walter	`// message id`
201	29	edn_walter	`if (int_valid && ptp_cnt==10'd1)`
202	37	edn_walter	`ptp_msgid <= ptp_data[27:24];`
203	10	edn_walter	`// sequence id`
204	29	edn_walter	`if (int_valid && ptp_cnt==10'd8)`
205	37	edn_walter	`ptp_seqid <= ptp_data[15:0];`
206			`// sum up clock id and source port id`
207			`if (int_valid && ptp_cnt==10'd6)`
208			`ptp_cksum <= ptp_data[31:24] + ptp_data[23:16] + ptp_data[15: 8] + ptp_data[ 7: 0] + ptp_cksum;`
209			`if (int_valid && ptp_cnt==10'd7)`
210			`ptp_cksum <= ptp_data[31:24] + ptp_data[23:16] + ptp_data[15: 8] + ptp_data[ 7: 0] + ptp_cksum;`
211			`if (int_valid && ptp_cnt==10'd8)`
212			`ptp_cksum <= ptp_data[31:24] + ptp_data[23:16] + ptp_cksum;`
213	4	ash_riple	`end`
214			`end`
215
216	29	edn_walter	`// parser output`
217	4	ash_riple	`always @(posedge rst or posedge clk) begin`
218			`if (rst) begin`
219			`ptp_found <= 1'b0;`
220	37	edn_walter	`ptp_infor <= 32'd0;`
221	4	ash_riple	`end`
222	29	edn_walter	`else if (int_valid && int_sop) begin`
223	4	ash_riple	`ptp_found <= 1'b0;`
224	37	edn_walter	`ptp_infor <= 32'd0;`
225	4	ash_riple	`end`
226	29	edn_walter	`else if (int_valid && ptp_cnt==10'd9) begin`
227	4	ash_riple	`ptp_found <= ptp_event;`
228	37	edn_walter	`ptp_infor <= {ptp_msgid, ptp_cksum, ptp_seqid}; // 4+12+16`
229	4	ash_riple	`end`
230			`end`
231
232			`endmodule`

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