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pad.v 36.8 KB
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 /************************************************************************\
 *                                                                        *
 *               Copyright(C) 1994, Silicon Graphics, Inc.               *
 *                                                                        *
 *  These coded instructions, statements, and computer programs  contain  *
 *  unpublished  proprietary  information of Silicon Graphics, Inc., and  *
 *  are protected by Federal copyright  law.  They  may not be disclosed  *
 *  to  third  parties  or copied or duplicated in any form, in whole or  *
 *  in part, without the prior written consent of Silicon Graphics, Inc.  *
 *                                                                        *
 \************************************************************************/

// $Id: pad.v,v 1.1 2002/03/28 00:26:13 berndt Exp $


module pad(
	bus_clk, v_ref, c_ctl_pgm,
	bus_enable_rac, bus_ctrl_rac, bus_data_rac,
	rbus_data_in, rbus_extend_in, rbus_control_in,
	rac_sel_in, rbus_data_out, rbus_extend_out,
	rbus_control_out, rbus_enable_out, rac_sel_out,
	ri_c_ctl_i, ri_c_ctl_en, ri_c_ctl_ld, ri_stop_r, ri_stop_t,
	tst_rac_reset, tst_pwr_up, tst_ext_be, tst_by_pass,
	tst_bist_mode, tst_iost_mode, tst_synclk_set,
	tst_bist_flag,

	mclk_pad,
	reset_out, reset_pad,
	test_out, test_pad,
	start_gclk, pre_clk, gclk, 

	pvalid_out, pvalid_pad,
	evalid_in, evalid_pad,
	eok_in, eok_pad,
	int_in, int_pad,

	sysad_out, sysad_in, sysad_pad,
	syscmd_out, syscmd_in, syscmd_pad, 
	sysad_en_l,

	cartaleh_in, cartaleh_pad,
	cartalel_in, cartalel_pad,
	cartrd_in, cartrd_pad,
	cartwr_in, cartwr_pad,
	cartad_out, cartad_in, cartad_pad, cartad_en_l,

	pifrsp_out, pifrsp_pad,
	pifcmd_in, pifcmd_pad,
	pifclk_in, pifclk_pad,

	auddata_in, auddata_pad,
	audclk_in, audclk_pad,
	audlrclk_in, audlrclk_pad,

	vbus_data, srgba_pad,
	vbus_sync, vsync_pad,
	vclk_out, vclk_pad,

	testckt_clk_pad, testckt_dir_pad,
	testckt_data_pad);


`include "ri.vh"

// rac interface
input bus_clk;
input v_ref;
input c_ctl_pgm;
output bus_enable_rac;
inout bus_ctrl_rac;
inout [RAMBUS_DATA_SIZE-1:0] bus_data_rac;

// rac-ri signal
output [RBUS_DATA_SIZE-1:0] rbus_data_in;
output [RBUS_EXTEND_SIZE-1:0] rbus_extend_in;
output [RBUS_CONTROL_SIZE-1:0] rbus_control_in;
input [RAC_SELECT_SIZE-1:0] rac_sel_in;
input [RBUS_DATA_SIZE-1:0] rbus_data_out;
input [RBUS_EXTEND_SIZE-1:0] rbus_extend_out;
input [RBUS_CONTROL_SIZE-1:0] rbus_control_out;
input [RBUS_ENABLE_SIZE-1:0] rbus_enable_out;
input [RAC_SELECT_SIZE-1:0] rac_sel_out;
input [RAC_CURRENT_SIZE-1:0] ri_c_ctl_i;
input ri_c_ctl_en, ri_c_ctl_ld;
input ri_stop_r, ri_stop_t;

// rac-tst signals
input tst_rac_reset, tst_pwr_up, tst_ext_be, tst_by_pass;
input tst_bist_mode, tst_iost_mode, tst_synclk_set;
output tst_bist_flag;

// System interface
output mclk_pad;

input start_gclk;
output pre_clk;
output gclk;

output reset_out;
input reset_pad;
output test_out;
input test_pad;

// SysAD interface
input pvalid_pad;
output pvalid_out;

input evalid_in;
output evalid_pad;

input eok_in;
output eok_pad;

input int_in;
output int_pad;

input  [4:0] sysad_en_l;
input  [31:0] sysad_in;
output [31:0] sysad_out;
inout  [31:0] sysad_pad;

input  [4:0] syscmd_in;
output [4:0] syscmd_out;
inout  [4:0] syscmd_pad;

// AD16 interface
input cartaleh_in;
output cartaleh_pad;
input cartalel_in;
output cartalel_pad;
input cartrd_in;
output cartrd_pad;
input cartwr_in;
output cartwr_pad;

input  [15:0] cartad_in;
output [15:0] cartad_out;
inout  [15:0] cartad_pad;
input  [1:0] cartad_en_l;

// PIF interface
input pifrsp_pad;
output pifrsp_out;
input pifcmd_in;
output pifcmd_pad;
input pifclk_in;
output pifclk_pad;

// Audio interface
input auddata_in;
output auddata_pad;
input audclk_in;
output audclk_pad;
input audlrclk_in;
output audlrclk_pad;

// Video interface
input  [6:0] vbus_data;
output [6:0] srgba_pad;
input vbus_sync;
output vsync_pad;
output vclk_out;
input vclk_pad;

// Speed test circuit
input testckt_clk_pad, testckt_dir_pad;
inout testckt_data_pad;

wire synclk_buft, synclk_bufb;

// dummy clock driver for logic simulation
dummy_gclkbuf gclk_dummy (.clkout(gclk), .clkin(synclk_bufb), .enable(start_gclk));

left_pads left_pads ( .sysad_pad25(sysad_pad[25]),
		      .sysad_pad26(sysad_pad[26]),
		      .sysad_pad27(sysad_pad[27]),
		      .sysad_pad28(sysad_pad[28]),
                      .bus_clk(bus_clk),
		      .v_ref(v_ref),
		      .c_ctl_pgm(c_ctl_pgm),
		      .bus_enable_rac(bus_enable_rac),
		      .bus_ctrl_rac(bus_ctrl_rac),
                      .bus_data_rac(bus_data_rac),
		      .sysad_out25(sysad_out[25]),
		      .sysad_out26(sysad_out[26]),
		      .sysad_out27(sysad_out[27]),
                      .sysad_out28(sysad_out[28]),
		      .sysad_in25(sysad_in[25]),
		      .sysad_in26(sysad_in[26]),
		      .sysad_in27(sysad_in[27]),
		      .sysad_in28(sysad_in[28]),
                      .sysad_en_l3(sysad_en_l[3]),
		      .rbus_data_in(rbus_data_in),
		      .rbus_extend_in(rbus_extend_in),
		      .rbus_control_in(rbus_control_in),
                      .rac_sel_in(rac_sel_in),
		      .rbus_data_out(rbus_data_out),
		      .rbus_extend_out(rbus_extend_out),
		      .rbus_control_out(rbus_control_out),
                      .rbus_enable_out(rbus_enable_out),
		      .rac_sel_out(rac_sel_out),
		      .ri_c_ctl_i(ri_c_ctl_i),
		      .ri_c_ctl_en(ri_c_ctl_en),
		      .ri_c_ctl_ld(ri_c_ctl_ld),
                      .ri_stop_r(ri_stop_r),
		      .ri_stop_t(ri_stop_t),
		      .tst_rac_reset(tst_rac_reset),
		      .tst_pwr_up(tst_pwr_up),
		      .tst_ext_be(tst_ext_be),
		      .tst_by_pass(tst_by_pass),
                      .tst_bist_mode(tst_bist_mode),
		      .tst_iost_mode(tst_iost_mode),
		      .tst_synclk_set(tst_synclk_set),
		      .tst_bist_flag(tst_bist_flag),
		      .testckt_clk_pad(testckt_clk_pad),
		      .testckt_dir_pad(testckt_dir_pad),
		      .testckt_data_pad(testckt_data_pad),
		      .synclk_buft(synclk_buft),
		      .synclk_bufb(synclk_bufb));

right_pads right_pads (  .pvalid_pad(pvalid_pad),
			 .eok_pad(eok_pad),
			 .int_pad(int_pad),
			 .cartaleh_pad(cartaleh_pad),
			 .cartrd_pad(cartrd_pad),
                         .cartalel_pad(cartalel_pad),
			 .cartwr_pad(cartwr_pad),
			 .cartad_pad0(cartad_pad[0]),
			 .cartad_pad1(cartad_pad[1]),
			 .cartad_pad2(cartad_pad[2]),
                         .cartad_pad3(cartad_pad[3]),
			 .cartad_pad12(cartad_pad[12]),
			 .cartad_pad13(cartad_pad[13]),
			 .cartad_pad14(cartad_pad[14]),
			 .cartad_pad15(cartad_pad[15]),
                         .pvalid_out(pvalid_out),
			 .eok_in(eok_in),
			 .int_in(int_in),
			 .cartaleh_in(cartaleh_in),
			 .cartrd_in(cartrd_in),
			 .cartalel_in(cartalel_in),
                         .cartwr_in(cartwr_in),
			 .cartad_in0(cartad_in[0]),
			 .cartad_in1(cartad_in[1]),
			 .cartad_in2(cartad_in[2]),
			 .cartad_in3(cartad_in[3]),
                         .cartad_in12(cartad_in[12]),
			 .cartad_in13(cartad_in[13]),
			 .cartad_in14(cartad_in[14]),
			 .cartad_in15(cartad_in[15]),
                         .cartad_en_l0(cartad_en_l[0]),
			 .cartad_en_l1(cartad_en_l[1]),
			 .cartad_out0(cartad_out[0]),
			 .cartad_out1(cartad_out[1]),
			 .cartad_out2(cartad_out[2]),
                         .cartad_out3(cartad_out[3]),
			 .cartad_out12(cartad_out[12]),
			 .cartad_out13(cartad_out[13]),
			 .cartad_out14(cartad_out[14]),
			 .cartad_out15(cartad_out[15]),
                         .sysad_out29(sysad_out[29]),
			 .sysad_out30(sysad_out[30]),
			 .sysad_out31(sysad_out[31]),
                         .sysad_pad29(sysad_pad[29]),
			 .sysad_pad30(sysad_pad[30]),
			 .sysad_pad31(sysad_pad[31]),
                         .sysad_in29(sysad_in[29]),
			 .sysad_in30(sysad_in[30]),
			 .sysad_in31(sysad_in[31]),
                         .sysad_pad0(sysad_pad[0]),
			 .sysad_pad1(sysad_pad[1]),
			 .sysad_pad2(sysad_pad[2]),
			 .sysad_pad3(sysad_pad[3]),
			 .sysad_pad4(sysad_pad[4]),
                         .sysad_pad5(sysad_pad[5]),
			 .sysad_pad6(sysad_pad[6]),
			 .sysad_pad7(sysad_pad[7]),
			 .sysad_pad8(sysad_pad[8]),
			 .sysad_pad9(sysad_pad[9]),
			 .sysad_in0(sysad_in[0]),
			 .sysad_in1(sysad_in[1]),
			 .sysad_in2(sysad_in[2]),
                         .sysad_in3(sysad_in[3]),
			 .sysad_in4(sysad_in[4]),
			 .sysad_in5(sysad_in[5]),
			 .sysad_in6(sysad_in[6]),
			 .sysad_in7(sysad_in[7]),
			 .sysad_in8(sysad_in[8]),
                         .sysad_in9(sysad_in[9]),
			 .sysad_en_l0(sysad_en_l[0]),
			 .sysad_en_l1(sysad_en_l[1]),
			 .sysad_en_l3(sysad_en_l[3]),
			 .sysad_out0(sysad_out[0]),
                         .sysad_out1(sysad_out[1]),
			 .sysad_out2(sysad_out[2]),
			 .sysad_out3(sysad_out[3]),
			 .sysad_out4(sysad_out[4]),
			 .sysad_out5(sysad_out[5]),
			 .sysad_out6(sysad_out[6]),
                         .sysad_out7(sysad_out[7]),
			 .sysad_out8(sysad_out[8]),
			 .sysad_out9(sysad_out[9]));


top_pads top_pads ( .sysad_pad10(sysad_pad[10]), 
		    .sysad_pad11(sysad_pad[11]), 
		    .sysad_pad12(sysad_pad[12]), 
		    .sysad_pad13(sysad_pad[13]), 
		    .sysad_pad14(sysad_pad[14]),
                    .sysad_pad15(sysad_pad[15]), 
		    .sysad_pad16(sysad_pad[16]), 
		    .sysad_pad17(sysad_pad[17]), 
		    .sysad_pad18(sysad_pad[18]), 
		    .sysad_pad19(sysad_pad[19]),
                    .sysad_pad20(sysad_pad[20]), 
		    .sysad_pad21(sysad_pad[21]), 
		    .sysad_pad22(sysad_pad[22]), 
		    .sysad_pad23(sysad_pad[23]), 
		    .sysad_pad24(sysad_pad[24]),
                    .syscmd_pad0(syscmd_pad[0]), 
		    .syscmd_pad1(syscmd_pad[1]), 
		    .syscmd_pad2(syscmd_pad[2]), 
		    .syscmd_pad3(syscmd_pad[3]), 
		    .syscmd_pad4(syscmd_pad[4]),
                    .mclk_pad(mclk_pad), 
		    .evalid_pad(evalid_pad),
                    .sysad_in10(sysad_in[10]), 
		    .sysad_in11(sysad_in[11]), 
		    .sysad_in12(sysad_in[12]), 
		    .sysad_in13(sysad_in[13]), 
		    .sysad_in14(sysad_in[14]),
                    .sysad_in15(sysad_in[15]), 
		    .sysad_in16(sysad_in[16]), 
		    .sysad_in17(sysad_in[17]), 
		    .sysad_in18(sysad_in[18]), 
		    .sysad_in19(sysad_in[19]),
                    .sysad_in20(sysad_in[20]), 
		    .sysad_in21(sysad_in[21]), 
		    .sysad_in22(sysad_in[22]), 
		    .sysad_in23(sysad_in[23]), 
		    .sysad_in24(sysad_in[24]),
                    .syscmd_in0(syscmd_in[0]), 
		    .syscmd_in1(syscmd_in[1]), 
		    .syscmd_in2(syscmd_in[2]), 
		    .syscmd_in3(syscmd_in[3]), 
		    .syscmd_in4(syscmd_in[4]),
		    .evalid_in(evalid_in),
                    .sysad_en_l1(sysad_en_l[1]), 
		    .sysad_en_l2(sysad_en_l[2]), 
		    .sysad_en_l3(sysad_en_l[3]), 
		    .sysad_en_l4(sysad_en_l[4]),
                    .synclk_buf(synclk_buft), 
		    .pre_clk(pre_clk),
                    .sysad_out10(sysad_out[10]), 
		    .sysad_out11(sysad_out[11]), 
		    .sysad_out12(sysad_out[12]), 
		    .sysad_out13(sysad_out[13]), 
		    .sysad_out14(sysad_out[14]),
                    .sysad_out15(sysad_out[15]), 
		    .sysad_out16(sysad_out[16]), 
		    .sysad_out17(sysad_out[17]), 
		    .sysad_out18(sysad_out[18]), 
		    .sysad_out19(sysad_out[19]),
                    .sysad_out20(sysad_out[20]), 
		    .sysad_out21(sysad_out[21]), 
		    .sysad_out22(sysad_out[22]), 
		    .sysad_out23(sysad_out[23]), 
		    .sysad_out24(sysad_out[24]),
                    .syscmd_out0(syscmd_out[0]), 
		    .syscmd_out1(syscmd_out[1]), 
		    .syscmd_out2(syscmd_out[2]), 
		    .syscmd_out3(syscmd_out[3]), 
		    .syscmd_out4(syscmd_out[4]));


bottom_pads bottom_pads ( .test_pad(test_pad), 
			  .pifrsp_pad(pifrsp_pad), 
			  .vclk_pad(vclk_pad), 
			  .reset_pad(reset_pad),
			  .pifcmd_pad(pifcmd_pad), 
			  .pifclk_pad(pifclk_pad), 
			  .audclk_pad(audclk_pad), 
			  .auddata_pad(auddata_pad), 
			  .audlrclk_pad(audlrclk_pad),
			  .vsync_pad(vsync_pad), 
			  .srgba_pad0(srgba_pad[0]), 
			  .srgba_pad1(srgba_pad[1]), 
			  .srgba_pad2(srgba_pad[2]),
			  .srgba_pad3(srgba_pad[3]), 
			  .srgba_pad4(srgba_pad[4]), 
			  .srgba_pad5(srgba_pad[5]), 
			  .srgba_pad6(srgba_pad[6]),
			  .cartad_pad4(cartad_pad[4]), 
			  .cartad_pad5(cartad_pad[5]), 
			  .cartad_pad6(cartad_pad[6]), 
			  .cartad_pad7(cartad_pad[7]),
			  .cartad_pad8(cartad_pad[8]), 
			  .cartad_pad9(cartad_pad[9]), 
			  .cartad_pad10(cartad_pad[10]), 
			  .cartad_pad11(cartad_pad[11]),
			  .synclk_buf(synclk_bufb), 
			  .pre_clk(pre_clk),
			  .cartad_in4(cartad_in[4]), 
			  .cartad_in5(cartad_in[5]), 
			  .cartad_in6(cartad_in[6]), 
			  .cartad_in7(cartad_in[7]),
			  .cartad_in8(cartad_in[8]), 
			  .cartad_in9(cartad_in[9]), 
			  .cartad_in10(cartad_in[10]), 
			  .cartad_in11(cartad_in[11]),
			  .cartad_en_l0(cartad_en_l[0]), 
			  .cartad_en_l1(cartad_en_l[1]),
			  .cartad_out4(cartad_out[4]), 
			  .cartad_out5(cartad_out[5]), 
			  .cartad_out6(cartad_out[6]), 
			  .cartad_out7(cartad_out[7]),
			  .cartad_out8(cartad_out[8]), 
			  .cartad_out9(cartad_out[9]), 
			  .cartad_out10(cartad_out[10]), 
			  .cartad_out11(cartad_out[11]),
			  .test_out(test_out), 
			  .pifrsp_out(pifrsp_out), 
			  .vclk_out(vclk_out), 
			  .reset_out(reset_out),
			  .pifcmd_in(pifcmd_in), 
			  .pifclk_in(pifclk_in), 
			  .audclk_in(audclk_in), 
			  .auddata_in(auddata_in), 
			  .audlrclk_in(audlrclk_in),
			  .vbus_sync(vbus_sync), 
			  .vbus_data(vbus_data));

endmodule




module left_pads ( sysad_pad25, sysad_pad26, sysad_pad27, sysad_pad28,
		   bus_clk, v_ref, c_ctl_pgm, bus_enable_rac, bus_ctrl_rac,
                   bus_data_rac, sysad_out25, sysad_out26, sysad_out27,
                   sysad_out28, sysad_in25, sysad_in26, sysad_in27, sysad_in28,
                   sysad_en_l3, rbus_data_in, rbus_extend_in, rbus_control_in,
                   rac_sel_in, rbus_data_out, rbus_extend_out, rbus_control_out,
                   rbus_enable_out, rac_sel_out, ri_c_ctl_i, ri_c_ctl_en, ri_c_ctl_ld,
                   ri_stop_r, ri_stop_t, tst_rac_reset, tst_pwr_up, tst_ext_be, tst_by_pass,
                   tst_bist_mode, tst_iost_mode, tst_synclk_set, tst_bist_flag,
		   synclk_buft, synclk_bufb, testckt_clk_pad, testckt_dir_pad,
	   	   testckt_data_pad);

`include "ri.vh"

// sysad pads
inout sysad_pad25;
inout sysad_pad26;
inout sysad_pad27;
inout sysad_pad28;

// rac pads
input bus_clk;
input v_ref;
input c_ctl_pgm;
output bus_enable_rac;
inout bus_ctrl_rac;
inout [RAMBUS_DATA_SIZE-1:0] bus_data_rac;

// internal signals
output synclk_buft, synclk_bufb;
output sysad_out25;
output sysad_out26;
output sysad_out27;
output sysad_out28;

input sysad_in25;
input sysad_in26;
input sysad_in27;
input sysad_in28;
input sysad_en_l3;

// rac-ri signals
output [RBUS_DATA_SIZE-1:0] rbus_data_in;
output [RBUS_EXTEND_SIZE-1:0] rbus_extend_in;
output [RBUS_CONTROL_SIZE-1:0] rbus_control_in;
input [RAC_SELECT_SIZE-1:0] rac_sel_in;

input [RBUS_DATA_SIZE-1:0] rbus_data_out;
input [RBUS_EXTEND_SIZE-1:0] rbus_extend_out;
input [RBUS_CONTROL_SIZE-1:0] rbus_control_out;
input [RBUS_ENABLE_SIZE-1:0] rbus_enable_out;
input [RAC_SELECT_SIZE-1:0] rac_sel_out;
input [RAC_CURRENT_SIZE-1:0] ri_c_ctl_i;
input ri_c_ctl_en, ri_c_ctl_ld;
input ri_stop_r, ri_stop_t;

// rac-tst signals
input tst_rac_reset, tst_pwr_up, tst_ext_be, tst_by_pass;
input tst_bist_mode, tst_iost_mode, tst_synclk_set;
output tst_bist_flag;

input testckt_clk_pad, testckt_dir_pad;
inout testckt_data_pad;

wire [RAC_RECEIVE_DATA_SIZE-1:0] r_data7, r_data6, r_data5, r_data4;
wire [RAC_RECEIVE_DATA_SIZE-1:0] r_data3, r_data2, r_data1, r_data0;
wire [RAC_TRANSMIT_DATA_SIZE-1:0] t_data7, t_data6, t_data5, t_data4;
wire [RAC_TRANSMIT_DATA_SIZE-1:0] t_data3, t_data2, t_data1, t_data0;

wire syn_clk, syn_clk_fd, syn_clk_in;
wire scan_out;



testckt_pads testckt (.clk(testckt_clk_pad), .dir_in(testckt_dir_pad),
		      .data(testckt_data_pad));


padior IOpad121 (.pad(sysad_pad25), .dout(sysad_out25),
                 .din(sysad_in25),  .oen(sysad_en_l3));
padior IOpad122 (.pad(sysad_pad26), .dout(sysad_out26),
                 .din(sysad_in26),  .oen(sysad_en_l3));
padior IOpad123 (.pad(sysad_pad27), .dout(sysad_out27),
                 .din(sysad_in27),  .oen(sysad_en_l3));
padior IOpad124 (.pad(sysad_pad28), .dout(sysad_out28),
                 .din(sysad_in28),  .oen(sysad_en_l3));
padvss    VSSpad125 (.pad(1'b0));
padvdd    VDDpad126 (.pad(1'b1));

rac rac_0(
   .BusClk(bus_clk),
   .BusCtrl(bus_ctrl_rac),
   .BusData(bus_data_rac),
   .BusEnable(bus_enable_rac),
   .Vref(v_ref),
   .CCtlPgm(c_ctl_pgm),
   .RData7(r_data7),
   .RData6(r_data6),
   .RData5(r_data5),
   .RData4(r_data4),
   .RData3(r_data3),
   .RData2(r_data2),
   .RData1(r_data1),
   .RData0(r_data0),
   .BDSel(rac_sel_out),
   .BCSel(rac_sel_out),
   .BESel(rac_sel_out),
   .RDSel(rac_sel_in),
   .RCSel(rac_sel_in),
   .TData7(t_data7),
   .TData6(t_data6),
   .TData5(t_data5),
   .TData4(t_data4),
   .TData3(t_data3),
   .TData2(t_data2),
   .TData1(t_data1),
   .TData0(t_data0),
   .SynClk(syn_clk),
   .SynClkFd(syn_clk_fd),
   .SynClkIn(syn_clk_in),
   .Reset(tst_rac_reset),
   .BISTFlag(tst_bist_flag),
   .BISTMode(tst_bist_mode),
   .IOSTMode(tst_iost_mode),
   .PwrUp(tst_pwr_up),
   .CCtlEn(ri_c_ctl_en),
   .CCtlLd(ri_c_ctl_ld),
   .CCtlI(ri_c_ctl_i),
   .ExtBE(tst_ext_be),
   .StopR(ri_stop_r),
   .StopT(ri_stop_t),
   .ByPass(tst_by_pass),
   .SCANMode(1'b0),
   .SCANClk(1'b0),
   .SCANEn(1'b0),
   .SCANIn(1'b0),
   .SCANOut(scan_out),
   .ByPSel(1'b1),
   .rclkASIC(1'b0),
   .tclkASIC(1'b0),
   .PhStall(1'b0));

padvss    VSSpad160 (.pad(1'b0));

// synclk synchronization gate
an02d1 g_0( .a1(syn_clk_fd), .a2(tst_synclk_set), .z(syn_clk_in));

// synclk buffers
synclkbuf buft( .synclkin(syn_clk), .synclkout(synclk_buft));
synclkbuf bufb( .synclkin(syn_clk), .synclkout(synclk_bufb));

// bus reassignments
assign {rbus_control_in[0], rbus_extend_in[0], rbus_data_in[ 7: 0]} = r_data7;
assign {rbus_control_in[1], rbus_extend_in[1], rbus_data_in[15: 8]} = r_data6;
assign {rbus_control_in[2], rbus_extend_in[2], rbus_data_in[23:16]} = r_data5;
assign {rbus_control_in[3], rbus_extend_in[3], rbus_data_in[31:24]} = r_data4;
assign {rbus_control_in[4], rbus_extend_in[4], rbus_data_in[39:32]} = r_data3;
assign {rbus_control_in[5], rbus_extend_in[5], rbus_data_in[47:40]} = r_data2;
assign {rbus_control_in[6], rbus_extend_in[6], rbus_data_in[55:48]} = r_data1;
assign {rbus_control_in[7], rbus_extend_in[7], rbus_data_in[63:56]} = r_data0;

assign t_data7 = {rbus_enable_out[0], rbus_control_out[0], rbus_extend_out[0],
  rbus_data_out[ 7: 0]};
assign t_data6 = {rbus_enable_out[1], rbus_control_out[1], rbus_extend_out[1],
  rbus_data_out[15: 8]};
assign t_data5 = {rbus_enable_out[2], rbus_control_out[2], rbus_extend_out[2],
  rbus_data_out[23:16]};
assign t_data4 = {rbus_enable_out[3], rbus_control_out[3], rbus_extend_out[3],
  rbus_data_out[31:24]};
assign t_data3 = {rbus_enable_out[4], rbus_control_out[4], rbus_extend_out[4],
  rbus_data_out[39:32]};
assign t_data2 = {rbus_enable_out[5], rbus_control_out[5], rbus_extend_out[5],
  rbus_data_out[47:40]};
assign t_data1 = {rbus_enable_out[6], rbus_control_out[6], rbus_extend_out[6],
  rbus_data_out[55:48]};
assign t_data0 = {rbus_enable_out[7], rbus_control_out[7], rbus_extend_out[7],
  rbus_data_out[63:56]};

endmodule


module right_pads ( pvalid_pad, eok_pad, int_pad, cartaleh_pad, cartrd_pad,
                    cartalel_pad, cartwr_pad, cartad_pad0, cartad_pad1, cartad_pad2,
                    cartad_pad3, cartad_pad12, cartad_pad13, cartad_pad14, cartad_pad15,
                    sysad_pad29, sysad_pad30, sysad_pad31,
                    sysad_pad0, sysad_pad1, sysad_pad2, sysad_pad3, sysad_pad4,
                    sysad_pad5, sysad_pad6, sysad_pad7, sysad_pad8, sysad_pad9,
                    pvalid_out, eok_in, int_in, cartaleh_in, cartrd_in, cartalel_in,
                    cartwr_in, cartad_in0, cartad_in1, cartad_in2, cartad_in3,
                    cartad_in12, cartad_in13, cartad_in14, cartad_in15,
                    cartad_en_l0, cartad_en_l1, cartad_out0, cartad_out1, cartad_out2,
                    cartad_out3, cartad_out12, cartad_out13, cartad_out14, cartad_out15,
                    sysad_in29, sysad_in30, sysad_in31, sysad_in0, sysad_in1, sysad_in2,
                    sysad_in3, sysad_in4, sysad_in5, sysad_in6, sysad_in7, sysad_in8,
                    sysad_in9, sysad_en_l0, sysad_en_l1, sysad_en_l3, sysad_out0,
                    sysad_out1, sysad_out2, sysad_out3, sysad_out4, sysad_out5, sysad_out6,
                    sysad_out7, sysad_out8, sysad_out9, sysad_out29, sysad_out30, sysad_out31);

`include "ri.vh"

// pads
input pvalid_pad;
output eok_pad;
output int_pad;
output cartaleh_pad, cartrd_pad, cartalel_pad, cartwr_pad;
inout cartad_pad0, cartad_pad1, cartad_pad2, cartad_pad3;
inout cartad_pad12, cartad_pad13, cartad_pad14, cartad_pad15;
inout sysad_pad29, sysad_pad30, sysad_pad31;
inout sysad_pad0, sysad_pad1, sysad_pad2, sysad_pad3, sysad_pad4;
inout sysad_pad5, sysad_pad6, sysad_pad7, sysad_pad8, sysad_pad9;


// internal signals
output pvalid_out;
input eok_in;
input int_in;
input cartaleh_in, cartrd_in, cartalel_in, cartwr_in;

input cartad_in0, cartad_in1, cartad_in2, cartad_in3;
input cartad_in12, cartad_in13, cartad_in14, cartad_in15;
input cartad_en_l0, cartad_en_l1;

output cartad_out0, cartad_out1, cartad_out2, cartad_out3;
output cartad_out12, cartad_out13, cartad_out14, cartad_out15;

input sysad_in29, sysad_in30, sysad_in31;
input sysad_in0, sysad_in1, sysad_in2, sysad_in3, sysad_in4;
input sysad_in5, sysad_in6, sysad_in7, sysad_in8, sysad_in9;
input sysad_en_l0, sysad_en_l1, sysad_en_l3;

output sysad_out29, sysad_out30, sysad_out31;
output sysad_out0, sysad_out1, sysad_out2, sysad_out3, sysad_out4;
output sysad_out5, sysad_out6, sysad_out7, sysad_out8, sysad_out9;


padocart    IOpad041 (.pad(cartaleh_pad), .din(cartaleh_in));
padvss      VSSpad042 (.pad(1'b0));
padvdd      VDDpad043 (.pad(1'b1));
padocart    IOpad044 (.pad(cartrd_pad),   .din(cartrd_in));
padocart    IOpad045 (.pad(cartalel_pad), .din(cartalel_in));
padocart    IOpad046 (.pad(cartwr_pad),   .din(cartwr_in));
padiorcartsl IOpad047 (.pad(cartad_pad3), .dout(cartad_out3),
                      .din(cartad_in3),  .oen(cartad_en_l0));
padvss      VSSpad048 (.pad(1'b0));
padvdd      VDDpad049 (.pad(1'b1));
padiorcartsl IOpad050 (.pad(cartad_pad12), .dout(cartad_out12),
                      .din(cartad_in12),  .oen(cartad_en_l1));
padiorcart   IOpad051 (.pad(cartad_pad2),  .dout(cartad_out2),
                      .din(cartad_in2),   .oen(cartad_en_l0));
padiorcartsl IOpad052 (.pad(cartad_pad13), .dout(cartad_out13),
                      .din(cartad_in13),  .oen(cartad_en_l1));
padiorcart   IOpad053 (.pad(cartad_pad1),  .dout(cartad_out1),
                      .din(cartad_in1),   .oen(cartad_en_l0));
padiorcartsl IOpad054 (.pad(cartad_pad14), .dout(cartad_out14),
                      .din(cartad_in14),  .oen(cartad_en_l1));
padvss      VSSpad055 (.pad(1'b0));
padvdd      VDDpad056 (.pad(1'b1));
padiorcartsl IOpad057 (.pad(cartad_pad0),  .dout(cartad_out0),
                      .din(cartad_in0),   .oen(cartad_en_l0));
padiorcart   IOpad058 (.pad(cartad_pad15), .dout(cartad_out15),
                      .din(cartad_in15),  .oen(cartad_en_l1));
padior      IOpad059 (.pad(sysad_pad29),  .dout(sysad_out29),
                      .din(sysad_in29),   .oen(sysad_en_l3));
pado        IOpad060 (.din(eok_in), .pad(eok_pad));
padior      IOpad061 (.pad(sysad_pad30),  .dout(sysad_out30),
                      .din(sysad_in30),   .oen(sysad_en_l3));
padin       IOpad062 (.dout(pvalid_out),    .pad(pvalid_pad));
padvss      VSSpad063 (.pad(1'b0));
padvdd      VDDpad064 (.pad(1'b1));
padior      IOpad065 (.pad(sysad_pad31), .dout(sysad_out31),
                      .din(sysad_in31),  .oen(sysad_en_l3));
padior      IOpad066 (.pad(sysad_pad0),  .dout(sysad_out0),
                      .din(sysad_in0),   .oen(sysad_en_l0));
padior      IOpad067 (.pad(sysad_pad1),  .dout(sysad_out1),
                      .din(sysad_in1),   .oen(sysad_en_l0));
padior      IOpad068 (.pad(sysad_pad2),  .dout(sysad_out2),
                      .din(sysad_in2),   .oen(sysad_en_l0));
padior      IOpad069 (.pad(sysad_pad3),  .dout(sysad_out3),
                      .din(sysad_in3),   .oen(sysad_en_l0));
padvss      VSSpad070 (.pad(1'b0));
padvdd      VDDpad071 (.pad(1'b1));
padior      IOpad072 (.pad(sysad_pad4),  .dout(sysad_out4),
                      .din(sysad_in4),   .oen(sysad_en_l0));
padior      IOpad073 (.pad(sysad_pad5),  .dout(sysad_out5),
                      .din(sysad_in5),   .oen(sysad_en_l0));
padior      IOpad074 (.pad(sysad_pad6),  .dout(sysad_out6),
                      .din(sysad_in6),   .oen(sysad_en_l0));
padior      IOpad075 (.pad(sysad_pad7),  .dout(sysad_out7),
                      .din(sysad_in7),   .oen(sysad_en_l0));
padvss      VSSpad076 (.pad(1'b0));
padvdd      VDDpad077 (.pad(1'b1));
padior      IOpad078 (.pad(sysad_pad8),  .dout(sysad_out8),
                      .din(sysad_in8),   .oen(sysad_en_l1));
padior      IOpad079 (.pad(sysad_pad9),  .dout(sysad_out9),
                      .din(sysad_in9),   .oen(sysad_en_l1));
pado        IOpad080 (.din(int_in), .pad(int_pad));


// cap cells for pad-ring

space_right cap00 ();
space_right cap01 ();
space_right cap02 ();
space_right cap03 ();
space_right cap04 ();
space_right cap05 ();
space_right cap06 ();
space_right cap07 ();
space_right cap08 ();
space_right cap09 ();
space_right cap10 ();
space_right cap11 ();
space_right cap12 ();
space_right cap13 ();
space_right cap14 ();
space_right cap15 ();
space_right cap16 ();
space_right cap17 ();
space_right cap18 ();
space_right cap19 ();
space_right cap20 ();
space_right cap21 ();
space_right cap22 ();
space_right cap23 ();
space_right cap24 ();
space_right cap25 ();
space_right cap26 ();
space_right cap27 ();
space_right cap28 ();

endmodule


module top_pads ( sysad_pad10, sysad_pad11, sysad_pad12, sysad_pad13, sysad_pad14,
                  sysad_pad15, sysad_pad16, sysad_pad17, sysad_pad18, sysad_pad19,
                  sysad_pad20, sysad_pad21, sysad_pad22, sysad_pad23, sysad_pad24,
                  syscmd_pad0, syscmd_pad1, syscmd_pad2, syscmd_pad3, syscmd_pad4,
                  mclk_pad, evalid_pad,
                  sysad_in10, sysad_in11, sysad_in12, sysad_in13, sysad_in14,
                  sysad_in15, sysad_in16, sysad_in17, sysad_in18, sysad_in19,
                  sysad_in20, sysad_in21, sysad_in22, sysad_in23, sysad_in24,
                  syscmd_in0, syscmd_in1, syscmd_in2, syscmd_in3, syscmd_in4,
                  evalid_in,
                  sysad_en_l1, sysad_en_l2, sysad_en_l3, sysad_en_l4,
                  synclk_buf, pre_clk,
                  sysad_out10, sysad_out11, sysad_out12, sysad_out13, sysad_out14,
                  sysad_out15, sysad_out16, sysad_out17, sysad_out18, sysad_out19,
                  sysad_out20, sysad_out21, sysad_out22, sysad_out23, sysad_out24,
                  syscmd_out0, syscmd_out1, syscmd_out2, syscmd_out3, syscmd_out4);

`include "ri.vh"

// pads
inout sysad_pad10, sysad_pad11, sysad_pad12, sysad_pad13, sysad_pad14;
inout sysad_pad15, sysad_pad16, sysad_pad17, sysad_pad18, sysad_pad19;
inout sysad_pad20, sysad_pad21, sysad_pad22, sysad_pad23, sysad_pad24;
inout syscmd_pad0, syscmd_pad1, syscmd_pad2, syscmd_pad3, syscmd_pad4;
output mclk_pad, evalid_pad;

// internal signals
input sysad_in10, sysad_in11, sysad_in12, sysad_in13, sysad_in14;
input sysad_in15, sysad_in16, sysad_in17, sysad_in18, sysad_in19;
input sysad_in20, sysad_in21, sysad_in22, sysad_in23, sysad_in24;
input syscmd_in0, syscmd_in1, syscmd_in2, syscmd_in3, syscmd_in4;
input evalid_in;
input sysad_en_l1, sysad_en_l2, sysad_en_l3, sysad_en_l4;
input synclk_buf;
output pre_clk;
output sysad_out10, sysad_out11, sysad_out12, sysad_out13, sysad_out14;
output sysad_out15, sysad_out16, sysad_out17, sysad_out18, sysad_out19;
output sysad_out20, sysad_out21, sysad_out22, sysad_out23, sysad_out24;
output syscmd_out0, syscmd_out1, syscmd_out2, syscmd_out3, syscmd_out4;

wire mclk_out;

padior  IOpad081 (.pad(sysad_pad10), .dout(sysad_out10),
                  .din(sysad_in10),  .oen(sysad_en_l1));
padvdd  VDDpad082 (.pad(1'b1));
padvss  VSSpad083 (.pad(1'b0));
padior  IOpad084 (.pad(sysad_pad11), .dout(sysad_out11),
                  .din(sysad_in11),  .oen(sysad_en_l1));
padior  IOpad085 (.pad(sysad_pad12), .dout(sysad_out12),
                  .din(sysad_in12),  .oen(sysad_en_l1));
padior  IOpad086 (.pad(sysad_pad13), .dout(sysad_out13),
                  .din(sysad_in13),  .oen(sysad_en_l1));
padior  IOpad087 (.pad(sysad_pad14), .dout(sysad_out14),
                  .din(sysad_in14),  .oen(sysad_en_l1));
padvdd  VDDpad088 (.pad(1'b1));
padvss  VSSpad089 (.pad(1'b0));

preclkbuf clkbuft1 (.preclkin(synclk_buf), .preclkout(pre_clk));

padvdd  VDDpad090 (.pad(1'b1));
padvss  VSSpad091 (.pad(1'b0));
padior  IOpad092 (.pad(sysad_pad15), .dout(sysad_out15),
                  .din(sysad_in15),  .oen(sysad_en_l1));
padior  IOpad093 (.pad(sysad_pad16), .dout(sysad_out16),
                  .din(sysad_in16),  .oen(sysad_en_l2));
padior  IOpad094 (.pad(sysad_pad17), .dout(sysad_out17),
                  .din(sysad_in17),  .oen(sysad_en_l2));
padior  IOpad095 (.pad(sysad_pad18), .dout(sysad_out18),
                  .din(sysad_in18),  .oen(sysad_en_l2));
padior  IOpad096 (.pad(sysad_pad19), .dout(sysad_out19),
                  .din(sysad_in19),  .oen(sysad_en_l2));
padvss  VSSpad097 (.pad(1'b0));
padvdd  VDDpad098 (.pad(1'b1));

mclk_buf  mclk_buft (.in(synclk_buf),    .out(mclk_out));

pado    IOpad099 (.din(mclk_out),    .pad(mclk_pad));
padvss  VSSpad100 (.pad(1'b0));
padvdd  VDDpad101 (.pad(1'b1));
padior  IOpad102 (.pad(sysad_pad20), .dout(sysad_out20),
                  .din(sysad_in20),  .oen(sysad_en_l2));
padior  IOpad103 (.pad(sysad_pad21), .dout(sysad_out21),
                  .din(sysad_in21),  .oen(sysad_en_l2));
padior  IOpad104 (.pad(sysad_pad22), .dout(sysad_out22),
                  .din(sysad_in22),  .oen(sysad_en_l2));
padvss  VSSpad105 (.pad(1'b0));
padvdd  VDDpad106 (.pad(1'b1));
padior  IOpad107 (.pad(sysad_pad23), .dout(sysad_out23),
                  .din(sysad_in23),  .oen(sysad_en_l2));
padior  IOpad108 (.pad(sysad_pad24), .dout(sysad_out24),
                  .din(sysad_in24),  .oen(sysad_en_l3));
padvss  VSSpad109 (.pad(1'b0));

preclkbuf clkbuft0 (.preclkin(synclk_buf), .preclkout(pre_clk));

padvdd  VDDpad110 (.pad(1'b1));
padior  IOpad111 (.pad(syscmd_pad4), .dout(syscmd_out4),
                  .din(syscmd_in4),  .oen(sysad_en_l4));
padior  IOpad112 (.pad(syscmd_pad3), .dout(syscmd_out3),
                  .din(syscmd_in3),  .oen(sysad_en_l4));
padvss  VSSpad113 (.pad(1'b0));
padvdd  VDDpad114 (.pad(1'b1));
padior  IOpad115 (.pad(syscmd_pad2), .dout(syscmd_out2),
                  .din(syscmd_in2),  .oen(sysad_en_l4));
pado    IOpad116 (.din(evalid_in),     .pad(evalid_pad));
padior  IOpad117 (.pad(syscmd_pad1), .dout(syscmd_out1),
                  .din(syscmd_in1),  .oen(sysad_en_l4));
padior  IOpad118 (.pad(syscmd_pad0), .dout(syscmd_out0),
                  .din(syscmd_in0),  .oen(sysad_en_l4));
padvss  VSSpad119 (.pad(1'b0));
padvdd  VDDpad120 (.pad(1'b1));


// cap cells for pad-ring

space_bot cap00 ();
space_bot cap01 ();
space_bot cap02 ();
space_bot cap03 ();
space_bot cap04 ();
space_bot cap05 ();
space_bot cap06 ();
space_bot cap07 ();
space_bot cap08 ();
space_bot cap09 ();
space_bot cap10 ();
space_bot cap11 ();
space_bot cap12 ();
space_bot cap13 ();
space_bot cap14 ();
space_bot cap15 ();
space_bot cap16 ();
space_bot cap17 ();
space_bot cap18 ();
space_bot cap19 ();
space_bot cap20 ();
space_bot cap21 ();
space_bot cap22 ();
space_bot cap23 ();
space_bot cap24 ();
space_bot cap25 ();
space_bot cap26 ();
space_bot cap27 ();
space_bot cap28 ();
space_bot cap29 ();
space_bot cap30 ();

endmodule


module bottom_pads ( test_pad, pifrsp_pad, vclk_pad, reset_pad,
                     pifcmd_pad, pifclk_pad, audclk_pad, auddata_pad, audlrclk_pad,
                     vsync_pad, srgba_pad0, srgba_pad1, srgba_pad2,
                     srgba_pad3, srgba_pad4, srgba_pad5, srgba_pad6,
                     cartad_pad4, cartad_pad5, cartad_pad6, cartad_pad7,
                     cartad_pad8, cartad_pad9, cartad_pad10, cartad_pad11,
                     synclk_buf, pre_clk,
                     cartad_in4, cartad_in5, cartad_in6, cartad_in7,
                     cartad_in8, cartad_in9, cartad_in10, cartad_in11,
                     cartad_en_l0, cartad_en_l1,
                     cartad_out4, cartad_out5, cartad_out6, cartad_out7,
                     cartad_out8, cartad_out9, cartad_out10, cartad_out11,
                     test_out, pifrsp_out, vclk_out, reset_out,
                     pifcmd_in, pifclk_in, audclk_in, auddata_in, audlrclk_in,
                     vbus_sync, vbus_data);

`include "ri.vh"

// pads
input test_pad;
input pifrsp_pad;
input vclk_pad;
input reset_pad;

output pifcmd_pad, pifclk_pad;
output audclk_pad, auddata_pad, audlrclk_pad;
output vsync_pad;
output srgba_pad0, srgba_pad1, srgba_pad2;
output srgba_pad3, srgba_pad4, srgba_pad5, srgba_pad6;

inout cartad_pad4, cartad_pad5, cartad_pad6, cartad_pad7;
inout cartad_pad8, cartad_pad9, cartad_pad10, cartad_pad11;

// internal signals
input synclk_buf;
output pre_clk;

input cartad_in4, cartad_in5, cartad_in6, cartad_in7;
input cartad_in8, cartad_in9, cartad_in10, cartad_in11;
input cartad_en_l0, cartad_en_l1;
output cartad_out4, cartad_out5, cartad_out6, cartad_out7;
output cartad_out8, cartad_out9, cartad_out10, cartad_out11;

output test_out;
output pifrsp_out;
output vclk_out;
output reset_out;

input pifcmd_in, pifclk_in;
input audclk_in, auddata_in, audlrclk_in;
input [6:0] vbus_data;
input vbus_sync;

wire vclk_in;
wire [6:0] vbus_data_reg;
wire       vbus_sync_reg;

mclk_buf  mclk_bufb (.in(synclk_buf),    .out());

padvdd 	  VDDpad001 (.pad(1'b1));
padin 	  IOpad002 (.dout(test_out),   .pad(test_pad));
padin 	  IOpad003 (.dout(pifrsp_out), .pad(pifrsp_pad));
padosl	  IOpad004 (.pad(pifcmd_pad),  .din(pifcmd_in));
padosl	  IOpad005 (.pad(pifclk_pad),  .din(pifclk_in));
padosl    IOpad006 (.pad(audclk_pad),  .din(audclk_in));
padosl    IOpad007 (.pad(auddata_pad), .din(auddata_in));
padvss    VSSpad008 (.pad(1'b0));
padvdd    VDDpad009 (.pad(1'b1));
padosl 	  IOpad010 (.pad(audlrclk_pad), .din(audlrclk_in));
padin  	  IOpad011 (.pad(vclk_pad),     .dout(vclk_in));
padvss    VSSpad012 (.pad(1'b0));

preclkbuf clkbufb0 (.preclkin(synclk_buf), .preclkout(pre_clk));

padvdd    VDDpad013 (.pad(1'b1));
pado   	  IOpad014 (.pad(vsync_pad),    .din(vbus_sync_reg));
pado   	  IOpad015 (.pad(srgba_pad6), .din(vbus_data_reg[6]));
padvss    VSSpad016 (.pad(1'b0));
padvdd    VDDpad017 (.pad(1'b1));
pado   	  IOpad018 (.pad(srgba_pad5), .din(vbus_data_reg[5]));
pado   	  IOpad019 (.pad(srgba_pad4), .din(vbus_data_reg[4]));
pado   	  IOpad020 (.pad(srgba_pad3), .din(vbus_data_reg[3]));
padvss    VSSpad021 (.pad(1'b0));
padvdd    VDDpad022 (.pad(1'b1));
pado   	  IOpad023 (.pad(srgba_pad2), .din(vbus_data_reg[2]));
pado   	  IOpad024 (.pad(srgba_pad1), .din(vbus_data_reg[1]));
pado   	  IOpad025 (.pad(srgba_pad0), .din(vbus_data_reg[0]));
padin 	  IOpad026 (.dout(reset_out),   .pad(reset_pad));
padvdd    VDDpad027 (.pad(1'b1));
padvss    VSSpad028 (.pad(1'b0));

preclkbuf clkbufb1 (.preclkin(synclk_buf), .preclkout(pre_clk));

padvdd      VDDpad029 (.pad(1'b1));
padvss      VSSpad030 (.pad(1'b0));
padiorcartsl IOpad031 (.pad(cartad_pad7), .dout(cartad_out7),
                      .din(cartad_in7),  .oen(cartad_en_l0));
padiorcart   IOpad032 (.pad(cartad_pad8), .dout(cartad_out8),
                      .din(cartad_in8),  .oen(cartad_en_l1));
padiorcartsl IOpad033 (.pad(cartad_pad6), .dout(cartad_out6),
                      .din(cartad_in6),  .oen(cartad_en_l0));
padiorcart   IOpad034 (.pad(cartad_pad9), .dout(cartad_out9),
                      .din(cartad_in9),  .oen(cartad_en_l1));
padiorcartsl IOpad035 (.pad(cartad_pad5), .dout(cartad_out5),
                      .din(cartad_in5),  .oen(cartad_en_l0));
padvss      VSSpad036 (.pad(1'b0));
padvdd      VDDpad037 (.pad(1'b1));
padiorcartsl IOpad038 (.pad(cartad_pad10), .dout(cartad_out10),
                      .din(cartad_in10),  .oen(cartad_en_l1));
padiorcart   IOpad039 (.pad(cartad_pad4),  .dout(cartad_out4),
                      .din(cartad_in4),   .oen(cartad_en_l0));
padiorcartsl IOpad040 (.pad(cartad_pad11), .dout(cartad_out11),
                      .din(cartad_in11),  .oen(cartad_en_l1));

vclk_regs vclk_regs(.reset_l(reset_out),
                    .vclk_in(vclk_in), .vclk_out(vclk_out),
                    .vbus_data(vbus_data), .vbus_sync(vbus_sync),
                    .vbus_data_reg(vbus_data_reg),
                    .vbus_sync_reg(vbus_sync_reg));


// cap cells for pad-ring

space_bot cap00 ();
space_bot cap01 ();
space_bot cap02 ();
space_bot cap03 ();
space_bot cap04 ();
space_bot cap05 ();
space_bot cap06 ();
space_bot cap07 ();
space_bot cap08 ();
space_bot cap09 ();
space_bot cap10 ();
space_bot cap11 ();
space_bot cap12 ();
space_bot cap13 ();
space_bot cap14 ();
space_bot cap15 ();
space_bot cap16 ();
space_bot cap17 ();
space_bot cap18 ();
space_bot cap19 ();
space_bot cap20 ();
space_bot cap21 ();
space_bot cap22 ();
space_bot cap23 ();
space_bot cap24 ();
space_bot cap25 ();
space_bot cap26 ();
space_bot cap27 ();
space_bot cap28 ();
space_bot cap29 ();
space_bot cap30 ();

endmodule