Command Reference2.  FPGA Express Shell Commands   set_pad_buffer



_N_A_M_E
          set_pad_buffer Set global buffer insertion type (Xilinx
                         only).


SYNTAX
          string set_pad_buffer _B_u_f_f_e_r _n_a_m_e
                 _p_o_r_t _l_i_s_t

         string    _B_u_f_f_e_r _n_a_m_e
         list      _p_o_r_t _l_i_s_t


ARGUMENTS
          _B_u_f_f_e_r _n_a_m_e    Name of global buffer type specifies the
                         global buffer insertion type. Global
                         buffers can be used to drive clocks or
                         high fanout nets to make a design
                         faster, minimize clock skew, or make the
                         routing task easier. Some buffers can
                         drive all nets, others can only drive
                         clock nets. Buffers are architecture and
                         family-dependent.  Global buffers are
                         usually a limited resource.


          _p_o_r_t _l_i_s_t      List of ports specifies the ports to
                         which this property has to be applied.
                         See object(2) for describing port lists.

DESCRIPTION
          This command sets the pad buffer value for the current
          chip. Buffer name specifies the buffer to be used for
          the ports named in port_list. Global buffers cannot be
          defined for a design that has the Do Not Insert I/O
          Pads option selected. Each port has a valid list of
          buffers that could be assigned to it.  If the value to
          be assigned is not one among the valid ones, then an
          error is reported. Returns 0 on success, 1 on failure.

          This command requires that the current chip is defined,
          otherwise an error message is reported.


EXAMPLES
          fe_shell > create_project -dir . fesproj
          fe_shell > add_file prep4.vhd
          fe_shell > analyze_file
          fe_shell > create_chip -target VIRTEX -name p_v prep4
          fe_shell > current_chip p_v
          fe_shell > set_pad_buffer BUFG /AM2910/D<1>




v3.0      Synopsys Inc. 1988-1998. All rights reserved.       2-1






set_pad_buffer  2.  FPGA Express Shell Commands Command Reference



SEE ALSO
          current_chip (2), set_pad_dir (2)





















































2-2       Synopsys Inc. 1988-1998. All rights reserved.      v3.0