Command Reference2.  FPGA Express Shell Commandsset_pad_resistance



_N_A_M_E
          set_pad_resistance
                         Set pad resistance.


SYNTAX
          string set_pad_resistance _R_e_s_i_s_t_o_r _v_a_l_u_e
                 _p_o_r_t _l_i_s_t

         string  _R_e_s_i_s_t_o_r _v_a_l_u_e
         list    _p_o_r_t _l_i_s_t


ARGUMENTS
          _R_e_s_i_s_t_o_r _v_a_l_u_e Pad resistor option "Resistor_value" is
                         the resistance value to be assigned as
                         the pad_resistance to each of the ports
                         in the port_list. The options are
                         specific to the implementation's target
                         device type. Resistance options for a
                         port or pad are specific to the
                         implementation's target device.
                         Resistance constraints apply to Xilinx
                         and Lucent technologies only.
                         A resistor pad is a pull-up or pull-down
                         cell that causes the logic value of
                         three-state net to be either logic 1 or
                         logic 0 when the net's three-state
                         drivers are all driving logic Z or high
                         impedence.


          _p_o_r_t _l_i_s_t      List of ports port_list gives the list
                         of ports, wherein the resitance value is
                         to be assigned to each one of the ports
                         in the port_list.



DESCRIPTION
          "set_pad_resistance" sets the pad resistance value for
          the current chip.  The first argument "Resistor_value"
          specifies the pad resistance type. The second argument
          "port_list" is a list of ports to apply the property
          to.  On execution, an integer is returned, where a 0
          indicates success and a 1 is reported on failure.
          Each port has with it a valid list of resistance values
          that can be assigned to it. If the value to be assigned
          is not one among the valid ones, then an error is
          reported, in addition a list of the valid values
          permitted is also displayed.




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






set_pad_resistance2.  FPGA Express Shell CommandsCommand Reference



EXAMPLES
          fe_shell > create_project -dir . fesproj
          fe_shell > add_file prep4.vhd
          fe_shell > analyze_file
          fe_shell > create_chip -target ORCA3C -name part_lucent
          prep4
          fe_shell > set_pad_resistance PULLUP /AM2910/D<2>



SEE ALSO
          set_pad_buffer,set_pad_dir, set_pad_register,
          set_pad_reg_delay (2)










































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