merge.py

# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA  02110-1301, USA. (See LICENSE for licensing information)


import design
import debug
import utils
from tech import GDS,layer

class merge(design.design):
    """
    This module implements the single merge cell used in the design. It
    is a hand-made cell, so the layout and netlist should be available in
    the technology library.
    merge for output data signals and some control signals when num of banks is greater than one
    """

    pin_names = ["D", "Q", "en1_M", "en2_M", "reset", "M", "vdd", "gnd"]
    (width,height) = utils.get_libcell_size("merge", GDS["unit"], layer["boundary"])
    pin_map = utils.get_libcell_pins(pin_names, "merge", GDS["unit"])

    def __init__(self):
        design.design.__init__(self, "merge")
        debug.info(2, "Create merge")

        self.width = merge.width
        self.height = merge.height
        self.pin_map = merge.pin_map