fix V1.2 TB
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@ -48,12 +48,11 @@ module nubus_slave_tb ();
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tri1 [1:0] leds;
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tri1 [1:0] leds;
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tri unused0, tmoen, unused1, unused2;
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tri unused0, unused1, unused2;
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tri arbcy_n;
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tri grant;
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tri nubus_oe, nubus_ad_dir;
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tri nubus_oe, nubus_ad_dir;
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tri reset_n_3v3, clk_n_3v3, tm0_n_3v3, tm1_n_3v3, start_n_3v3, ack_n_3v3, rqst_n_3v3;
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tri reset_n_3v3, clk_n_3v3, tm0_n_3v3, tm1_n_3v3, start_n_3v3, ack_n_3v3, rqst_n_3v3;
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tri [3:0] id_n_3v3;
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tri [3:0] id_n_3v3;
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tri [3:0] arb_n_3v3;
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tri [31:0] ad_n_3v3;
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tri [31:0] ad_n_3v3;
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tri [3:0] arb_o_n;
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tri [3:0] arb_o_n;
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tri tm0_o_n, tm1_o_n, tmx_oe_n;
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tri tm0_o_n, tm1_o_n, tmx_oe_n;
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@ -88,10 +87,10 @@ module nubus_slave_tb ();
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.nubus_oe(nubus_oe),
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.nubus_oe(nubus_oe),
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.nubus_ad_dir(nubus_ad_dir));
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.nubus_ad_dir(nubus_ad_dir));
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tri1 nmrq_3v3_n;
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tri1 nmrq_n_3v3;
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sn74lvt145_quarter driver_u1a(.oe_n(nmrq_3v3_n),
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sn74lvt145_quarter driver_u1a(.oe_n(nmrq_n_3v3),
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.in(0),
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.in(0),
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.out(nub_nmrqn));
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.out(nub_nmrqn));
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sn74lvt145_quarter driver_u1b(.oe_n(rqst_o_n),
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sn74lvt145_quarter driver_u1b(.oe_n(rqst_o_n),
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@ -126,15 +125,20 @@ module nubus_slave_tb ();
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sn74lvt145_quarter driver_u2c(.oe_n(tm2_oe_n),
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sn74lvt145_quarter driver_u2c(.oe_n(tm2_oe_n),
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.in(tm2_o_n),
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.in(tm2_o_n),
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.out(nub_tm2n));
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.out(nub_tm2n));
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sn74cb3t3125 shifters_u4(.oe_n('h0),
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.A({start_n_3v3, ack_n_3v3, clk_n_3v3, rqst_n_3v3 }),
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.B({nub_startn, nub_ackn, nub_clkn, nub_rqstn }));
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sn74cb3t3125 shifters_u13(.oe_n('h0),
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.A({reset_n_3v3, tm2_n_3v3, tm0_n_3v3, tm1_n_3v3}),
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.B({nub_resetn, nub_tm2n, nub_tm0n, nub_tm1n }));
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assign clk2x_n_3v3 = nub_clk2xn;
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tri1 [2:0] u13_throwaway;
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tri1 [2:0] u13_zero;
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sn74cb3t3245 shifters_u13(.oe_n('h0),
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.A({clk2x_n_3v3, clk_n_3v3, start_n_3v3, ack_n_3v3, rqst_n_3v3, u13_throwaway}),
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.B({nub_clk2xn, nub_clkn, nub_startn, nub_ackn, nub_rqstn, u13_zero}));
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sn74cb3t3245 shifters_u14(.oe_n('h0),
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.A({id_n_3v3, arb_n_3v3 }),
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.B({nub_idn, nub_arbn }));
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tri1 [3:0] u15_throwaway;
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tri1 [3:0] u15_zero;
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sn74cb3t3245 shifters_u15(.oe_n('h0),
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.A({ reset_n_3v3, tm2_n_3v3, tm0_n_3v3, tm1_n_3v3, u15_throwaway }),
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.B({ nub_resetn, nub_tm2n, nub_tm0n, nub_tm1n, u15_zero }));
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ztex213_nubus_V1_2 UNuBus (
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ztex213_nubus_V1_2 UNuBus (
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// NuBus lines only
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// NuBus lines only
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@ -156,10 +160,10 @@ module nubus_slave_tb ();
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.rqst_3v3_n(rqst_n_3v3),
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.rqst_3v3_n(rqst_n_3v3),
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.rqst_o_n(rqst_o_n),
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.rqst_o_n(rqst_o_n),
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.nmrq_3v3_n(nmrq_n_3v3), // output only, direct to driver
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.nmrq_3v3_n(nmrq_n_3v3), // output only, direct to driver
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.ack_3v3_n(ack_3v3_n),
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.ack_3v3_n(ack_n_3v3),
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.ack_o_n(ack_o_n),
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.ack_o_n(ack_o_n),
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.ack_oe_n(ack_oe_n),
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.ack_oe_n(ack_oe_n),
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.arb_3v3_n(arb_3v3_n),
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.arb_3v3_n(arb_n_3v3),
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.arb_o_n(arb_o_n),
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.arb_o_n(arb_o_n),
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.nubus_ad_dir(nubus_ad_dir),
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.nubus_ad_dir(nubus_ad_dir),
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.nubus_oe(nubus_oe),
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.nubus_oe(nubus_oe),
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@ -1,14 +1,14 @@
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module sn74cb3t3125
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module sn74cb3t3125
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(
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(
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input [3:0] oe_n,
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input [3:0] oe_n,
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inout [3:0] A,
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output [3:0] A,
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input [3:0] B
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input [3:0] B
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);
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);
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/*
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wire [3:0] tA;
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wire [3:0] tA;
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wire [3:0] tB;
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wire [3:0] tB;
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/*
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assign A[0] = oe_n[0] ? 'bZ : tA[0];
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assign A[0] = oe_n[0] ? 'bZ : tA[0];
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assign A[1] = oe_n[1] ? 'bZ : tA[1];
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assign A[1] = oe_n[1] ? 'bZ : tA[1];
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assign A[2] = oe_n[2] ? 'bZ : tA[2];
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assign A[2] = oe_n[2] ? 'bZ : tA[2];
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@ -30,7 +30,7 @@ module sn74cb3t3125
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assign A[0] = oe_n[0] ? 'bZ : B[0];
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assign A[0] = oe_n[0] ? 'bZ : B[0];
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assign A[1] = oe_n[1] ? 'bZ : B[1];
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assign A[1] = oe_n[1] ? 'bZ : B[1];
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assign A[3] = oe_n[2] ? 'bZ : B[2];
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assign A[2] = oe_n[2] ? 'bZ : B[2];
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assign A[3] = oe_n[3] ? 'bZ : B[3];
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assign A[3] = oe_n[3] ? 'bZ : B[3];
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@ -0,0 +1,18 @@
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module sn74cb3t3245
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(
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input oe_n,
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output [7:0] A,
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input [7:0] B
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);
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assign A[0] = oe_n ? 'bZ : B[0];
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assign A[1] = oe_n ? 'bZ : B[1];
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assign A[2] = oe_n ? 'bZ : B[2];
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assign A[3] = oe_n ? 'bZ : B[3];
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assign A[4] = oe_n ? 'bZ : B[4];
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assign A[5] = oe_n ? 'bZ : B[5];
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assign A[6] = oe_n ? 'bZ : B[6];
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assign A[7] = oe_n ? 'bZ : B[7];
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endmodule // sn74cb3t3125
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