diff options
Diffstat (limited to 'usrp1/sdr_lib/bidir_reg.v')
-rw-r--r-- | usrp1/sdr_lib/bidir_reg.v | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/usrp1/sdr_lib/bidir_reg.v b/usrp1/sdr_lib/bidir_reg.v new file mode 100644 index 000000000..b12441252 --- /dev/null +++ b/usrp1/sdr_lib/bidir_reg.v @@ -0,0 +1,29 @@ +// Bidirectional registers + +module bidir_reg + ( inout wire [15:0] tristate, + input wire [15:0] oe, + input wire [15:0] reg_val ); + + // This would be much cleaner if all the tools + // supported "for generate"........ + + assign tristate[0] = oe[0] ? reg_val[0] : 1'bz; + assign tristate[1] = oe[1] ? reg_val[1] : 1'bz; + assign tristate[2] = oe[2] ? reg_val[2] : 1'bz; + assign tristate[3] = oe[3] ? reg_val[3] : 1'bz; + assign tristate[4] = oe[4] ? reg_val[4] : 1'bz; + assign tristate[5] = oe[5] ? reg_val[5] : 1'bz; + assign tristate[6] = oe[6] ? reg_val[6] : 1'bz; + assign tristate[7] = oe[7] ? reg_val[7] : 1'bz; + assign tristate[8] = oe[8] ? reg_val[8] : 1'bz; + assign tristate[9] = oe[9] ? reg_val[9] : 1'bz; + assign tristate[10] = oe[10] ? reg_val[10] : 1'bz; + assign tristate[11] = oe[11] ? reg_val[11] : 1'bz; + assign tristate[12] = oe[12] ? reg_val[12] : 1'bz; + assign tristate[13] = oe[13] ? reg_val[13] : 1'bz; + assign tristate[14] = oe[14] ? reg_val[14] : 1'bz; + assign tristate[15] = oe[15] ? reg_val[15] : 1'bz; + +endmodule // bidir_reg + |