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 pin placement around core in encounter 

Last post Tue, Nov 22 2011 9:29 PM by mikhail. 1 replies.
Started by dipayan 22 Nov 2011 03:45 PM. Topic has 1 replies and 2567 views
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  • Tue, Nov 22 2011 3:45 PM

    • dipayan
    • Not Ranked
    • Joined on Tue, Nov 15 2011
    • Posts 4
    • Points 65
    pin placement around core in encounter Reply
    hello, can anyone please tell me how to set the location of input and output pins around the core? i don't have any i/o pads in my design. i am designing a counter and i would like to place the count pins c0, c1, c2, .....c9 etc on the right-hand side of the core and the input control pins and clock, reset on the left-hand side of the core. i can't seem to find the right options in encounter to do this. thanks
    • Post Points: 20
  • Tue, Nov 22 2011 9:29 PM

    • mikhail
    • Not Ranked
    • Joined on Thu, Dec 4 2008
    • Moscow, 00-RU
    • Posts 9
    • Points 120
    Re: pin placement around core in encounter Reply
    Hi, You can use editPin command in way to place IO pins on boundary of the block.
    Just example from documentation (Encounter Digital Implementation System Text Command Reference):

    Example:
    The following command modifies the pins as specified here:

    - the command runs on the module DTMF_CORE_INST1
    - the command runs on all pins whose name starts with DTMF_CORE_INST1_OUTPIN
    - the pins are spread on the edge number 2
    - the USE property is set to CLOCK
    - the pins are spread between the coordinates (17 23) and (117 123)
    - the pins are assigned on the layer Metal3
    - the pin status is set to Fixed
    - the pins are snapped to layer tracks
    - the unit is in tracks
    - the spacing between pins for multi-editing is set to 2 tracks
    - the pin depth is set to 10 microns.
    Note: The -unit parameter is set to TRACK but that does not affect the unit of pin depth.
    - the pins are moved to the nearest acceptable location as the -fixOverlap parameter
    is set to 1. However, the -overlapConstraints parameter is not specified.

    editPin \
    -cell DTMF_CORE_INST1 \
    -pin {DTMF_CORE_INST1_OUTPIN} \
    -spreadType RANGE \
    -edge 2 \
    -layer Metal3 \
    -use CLOCK \
    -fixOverlap 1 \
    -snap TRACK \
    -pinDepth 10 \
    -start {17 23} \
    -end {117 23} \
    -spacing 2 \
    -unit TRACK \
    -fixedPin 1


    Hope this helps,
    Mikhail.
    • Post Points: 5
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Started by dipayan at 22 Nov 2011 03:45 PM. Topic has 1 replies.