xbase.layout.mos.util

Module Contents

Classes

MOSUsedArray

A data structure that keeps track of used transistors in MOSBase.

Attributes

MOSInfoType

xbase.layout.mos.util.MOSInfoType[source]
class xbase.layout.mos.util.MOSUsedArray(obj: Union[xbase.layout.mos.placement.data.TilePatternElement, xbase.layout.mos.placement.data.MOSBasePlaceInfo, xbase.layout.mos.placement.data.TilePattern], mirror: bool = True, flip: bool = False, copy: Optional[MOSUsedArray] = None)[source]

A data structure that keeps track of used transistors in MOSBase.

This class is used to automatically fill empty spaces, and also get left/right/top/bottom layout information needed to create space blocks and extension rows. Both tiles and columns are added dynamically.

Parameters:

  • obj (Union[MOSBasePlaceInfo, TilePattern]) – the repeating tile pattern.

  • mirror (bool) – True to mirror every other TilePattern.

  • flip (bool) – True to flip all tile orientations.

  • copy (Optional[MOSUsedArray]) – internal parameter used to perform efficient copying of MOSUsedArray.

property tile_pattern_element: xbase.layout.mos.placement.data.TilePatternElement[source]
property num_flat_rows: int[source]

Total number of rows.

Type:

int

property num_tiles: int[source]
property num_cols: int[source]

Number of columns.

Type:

int

property height: int[source]
default_edge_info[source]
classmethod get_interval(col_idx: int, seg: int, flip_lr: bool) → Tuple[int, int][source]
get_copy() → MOSUsedArray[source]
get_tile_pattern_element(mult: int, mirror: bool, flip: bool) → xbase.layout.mos.placement.data.TilePatternElement[source]
get_tile_subpattern(start_idx: int, stop_idx: int, mult: int, mirror: bool, flip: bool) → xbase.layout.mos.placement.data.TilePatternElement[source]
get_tile_info(tile_idx: int) → Tuple[xbase.layout.mos.placement.data.MOSBasePlaceInfo, int, bool][source]
get_tile_pinfo(tile_idx: int) → xbase.layout.mos.placement.data.MOSBasePlaceInfo[source]
get_flip_tile(tile_idx: int) → bool[source]
get_num_wires(row_idx: int, wire_type: Union[xbase.layout.enum.MOSWireType, bool], wire_name: str, *, tile_idx: int = 0) → int[source]
get_track_info(row_idx: int, wire_type: Union[xbase.layout.enum.MOSWireType, bool], wire_name: str, wire_idx: int = 0, *, tile_idx: int = 0) → Tuple[bag.util.math.HalfInt, int][source]
get_track_index(row_idx: int, wire_type: Union[xbase.layout.enum.MOSWireType, bool], wire_name: str, wire_idx: int = 0, *, tile_idx: int = 0) → bag.util.math.HalfInt[source]
get_track_id(row_idx: int, wire_type: Union[xbase.layout.enum.MOSWireType, bool], wire_name: str, wire_idx: int = 0, *, tile_idx: int = 0) → bag.layout.routing.base.TrackID[source]
get_hm_track_info(hm_layer: int, wire_name: str, wire_idx: int = 0, *, tile_idx: int = 0) → Tuple[bag.util.math.HalfInt, int][source]
get_hm_track_id(hm_layer: int, wire_name: str, wire_idx: int = 0, *, tile_idx: int = 0) → bag.layout.routing.base.TrackID[source]
get_hm_track_index(hm_layer: int, wire_name: str, wire_idx: int = 0, *, tile_idx: int = 0) → bag.util.math.HalfInt[source]
flat_row_to_tile_row(flat_row_idx: int) → Tuple[int, int][source]
get_flat_row_idx_and_flip(tile_idx: int, row_idx: int) → Tuple[int, bool][source]
get_edge_info(flat_row_idx: int, col_idx: int) → xbase.layout.mos.data.MOSEdgeInfo[source]
get_bottom_info(flat_row_idx: int) → List[xbase.layout.mos.data.BlkExtInfo][source]
get_top_info(flat_row_idx: int) → List[xbase.layout.mos.data.BlkExtInfo][source]
set_num_tiles(val: int) → None[source]
add_mos(tile_idx: int, row_idx: int, col_idx: int, seg: int, flip_lr: bool, flip_ud: bool, left: Optional[xbase.layout.mos.data.MOSEdgeInfo], right: Optional[xbase.layout.mos.data.MOSEdgeInfo], top: xbase.layout.mos.data.BlkExtInfo, bottom: xbase.layout.mos.data.BlkExtInfo, abut_list: Optional[List[xbase.layout.mos.data.MOSAbutInfo]]) → None[source]

Add a new interval to this data structure.

Parameters:

  • tile_idx (int) – the tile index.

  • row_idx (int) – the row index.

  • col_idx (int) – the column index.

  • seg (int) – the interval length.

  • flip_lr (bool) – True to flip left-right.

  • flip_ud (bool) – True to flip up-down.

  • left (Optional[MOSEdgeInfo]) – left edge info, before flip.

  • right (Optional[MOSEdgeInfo]) – right edge info, before flip.

  • top (BlkExtInfo) – top edge info, before flip.

  • bottom (BlkExtInfo) – bottom edge info, before flip.

  • abut_list (Optional[List[MOSAbutInfo]]) – list to store abutting transistor edges.

Returns:

success – True if the given interval is successfully added. False if it overlaps with existing blocks.

Return type:

bool

add_mos_raw(flat_row_idx: int, flip_tile: bool, col_idx: int, seg: int, flip_lr: bool, flip_ud: bool, left: Optional[xbase.layout.mos.data.MOSEdgeInfo], right: Optional[xbase.layout.mos.data.MOSEdgeInfo], top: xbase.layout.mos.data.BlkExtInfo, bottom: xbase.layout.mos.data.BlkExtInfo, abut_list: Optional[List[xbase.layout.mos.data.MOSAbutInfo]]) → None[source]
add_tiles(tile_idx: int, col_idx: int, used_arr: MOSUsedArray, flip_lr: bool, abut_list: List[xbase.layout.mos.data.MOSAbutInfo]) → None[source]
intv_iter(flat_row_idx: int) → Iterable[Tuple[int, int]][source]
info_iter(flat_row_idx: int) → Iterable[MOSInfoType][source]
get_complement(tile_idx: int, row_idx: int, start: int, stop: int) → bag.util.immutable.ImmutableList[Tuple[Tuple[int, int], xbase.layout.mos.data.MOSEdgeInfo, xbase.layout.mos.data.MOSEdgeInfo]][source]

Returns a list of unused column intervals within the given interval.

Parameters:

  • tile_idx (int) – th tile index.

  • row_idx (int) – the row index.

  • start (int) – the starting column, inclusive.

  • stop (int) – the ending column, exclusive.

Returns:

ans – a list of unused column intervals and the associated left/right edge info.

Return type:

ImmutableList[Tuple[Tuple[int, int], MOSEdgeInfo, MOSEdgeInfo]]

_get_ext_list_helper(flat_row_idx: int, val_idx: int) → List[xbase.layout.mos.data.BlkExtInfo][source]
_add_edge_info(key: Tuple[int, int], info: Optional[xbase.layout.mos.data.MOSEdgeInfo], is_right: bool, abut_list: Optional[List[xbase.layout.mos.data.MOSAbutInfo]]) → None[source]