| # Power nets |
| set ::power_nets $::env(VDD_PIN) |
| set ::ground_nets $::env(GND_PIN) |
| |
| set ::macro_blockage_layer_list "li1 met1 met2 met3 met4 met5" |
| |
| pdngen::specify_grid stdcell { |
| name grid |
| rails { |
| met1 {width 0.48 pitch $::env(PLACE_SITE_HEIGHT) offset 0} |
| } |
| straps { |
| met4 {width 1.6 pitch $::env(FP_PDN_VPITCH) offset $::env(FP_PDN_VOFFSET)} |
| met5 {width 1.6 pitch $::env(FP_PDN_HPITCH) offset $::env(FP_PDN_HOFFSET)} |
| } |
| connect {{met1 met4} {met4 met5}} |
| } |
| |
| pdngen::specify_grid macro { |
| power_pins "VPWR" |
| ground_pins "VGND" |
| blockages "li1 met1 met2 met3 met4" |
| straps { |
| } |
| connect {{met4_PIN_ver met5}} |
| } |
| |
| set ::halo 5 |
| |
| # POWER or GROUND #Std. cell rails starting with power or ground rails at the bottom of the core area |
| set ::rails_start_with "POWER" ; |
| |
| # POWER or GROUND #Upper metal stripes starting with power or ground rails at the left/bottom of the core area |
| set ::stripes_start_with "POWER" ; |