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AL(5)				  File Formats				   AL(5)

NAME
     al - Alliance logical format

DESCRIPTION
     The  .al  format  is the ALLIANCE format for the logical view of a cell. We
     give below the BNF description of the format :

     file ::=
	  version
	  header
	  connectors
	  instances
	  transistors
	  signals
	  crosstalk_capacitances
	  end_of_file

     version ::= 'V ALLIANCE : ' version_number

     header ::= 'H ' name ',' file_type ',' date
	/// name : name of the figure
	/// date : saving file date

     connectors ::= { connector }

     connector ::= 'C ' name ',' connector_direction ','
		   connector_type ',' net_num [list_of_physical_node]

     list_of_physical_node ::= { ',' node_num }

     instances ::= { instance connectors }
	/// An instance is followed by his connectors

     instance ::= 'I ' model_name ',' instance_name

     transistors ::= { transistor }

     transistor ::= 'T' type ',' lenght ',' width ',' drain ','
		    grid ',' source ',' bulk ',' xs ',' xd ',' ps ',' pd
		    ',' x ',' y [ ',' node_drain ',' node_grid ','
		    node_source ',' node_bulk ] ',' trname

	/// drain : number of the net connected to the drain
	/// grid : number of the net connected to the grid
	/// source : number of the net connected to the source
	/// bulk : number of the net connected to the bulk
	/// xs, xd : To compute respectivly the source and
	///	     drain area
	/// ps, pd : perimeter of the source and drain
	/// x, y : coordinate of the transistor in a layout
	/// node_drain : number of the node connected to the drain
	/// node_grid : number of the node connected to the grid
	/// node_source : number of the node connected to the source
	/// node_bulk : number of the node connected to the bulk

     signals ::= { signal }

     signal := sig_index [ { resistance } ] [ { capacitance } ]

     sig_index ::= 'S ' net_num ',' signal_type [ list_of_signal_name ]

     list_of_signal_name ::= { ',' signal_name }

     resistance := 'R ' layer ',' node1 ',' node2 ',' resi ',' capa ','
		   x ',' y ',' dx ',' dy

     capacitance := 'Q ' capa

	/// Each resistance is describe as a resistor beetwen two nodes
	/// connected to the ground with capacitor with a value of capa/2.
	/// Capacitance is the entire capacitance of the net to ground.

     crosstalk_capacitances ::= { crosstalk_capacitance }

     crosstalk_capacitance ::= K capa ',' sig1 ',' node1 ',' sig2 ',' node2

     end_of_file ::= 'EOF'

     version_number ::= number

     file_type ::= 'L'

     date ::= day '/' month '/' year

     connector_direction ::= 'IN' | 'OUT' | 'INOUT' | 'UNKNOWN' |
			     'TRISTATE' | 'TRANSCV'
	/// in : input
	/// out : output
	/// inout : input and output
	/// unknown : no information is available
	/// tristate : tristate output
	/// transcv : tristate output and input

     connector_type ::= 'EXTERNAL' | 'INTERNAL'

     net_num ::= number

     node_num ::= number

     model_name ::= name

     instance_name ::= name

     type ::= 'N' | 'P'

     lenght ::= float

     width ::= float

     drain ::= net_num

     grid ::= net_num

     source ::= net_num

     bulk ::= net_num

     node1 ::= node_num

     node2 ::= node_num

     sig1 ::= net_num

     sig2 ::= net_num

     xs ::= float

     xd ::= float

     ps ::= float

     pd ::= float

     x ::= float

     y ::= float

     dx ::= float

     dy ::= float

     trname :: name

     layer ::= 'X' | 'PY' | 'A1' | 'A2' | 'CY' | 'CN' | 'CP' | 'CV'
	       | 'CW' | 'CA' | 'RE'

     signal_type ::= 'EXTERNAL' | 'INTERNAL'

     capa ::= float

     resi ::= float

     signal_name ::= name

     number ::= { '0' | '1'| '2' | '3' | '4' | '5' |
		  '6' | '7'| '8' | '9' }

     float ::= number [ '.' number ]

     name ::= word

EXAMPLES
   Example 1
     This example is the representation of a nand  whith  two  input,  extracted
     with Lynx at transistor level.

     V ALLIANCE : 6
     H na2_y,L,29/ 3/99
     C vss,UNKNOWN,EXTERNAL,2,1,9
     C vdd,UNKNOWN,EXTERNAL,1,9,13
     C i1,UNKNOWN,EXTERNAL,6,1,8
     C i0,UNKNOWN,EXTERNAL,5,2,8
     C f,UNKNOWN,EXTERNAL,3,1,11
     T P,1,12,1,5,3,1,2,2,28,28,17,32.5,4,3,7,3,tr_00004
     T P,1,12,3,6,1,1,2,2,28,28,11,32.5,7,7,1,2,tr_00003
     T N,1,12,3,5,4,2,2,2,28,28,17,12.5,3,1,1,8,tr_00002
     T N,1,12,4,6,2,2,2,2,28,28,11,12.5,1,2,2,5,tr_00001
     S 6,EXTERNAL,i1
     Q 0.020455
     W 4,3,CV,0,0,7.2,17.6,0,0
     W 6,5,CV,0,0,6.4,22.4,0,0
     W 5,8,A2,0.4,0.00408,6.4,22.4,1.6,13.6
     W 1,5,A2,0.6,0.006,6.4,2.4,1.6,20
     W 3,6,A1,0.3,0.00168,6.4,17.6,1.6,4.8
     W 4,7,PY,500,0.00315,8.8,17.6,0.8,8.4
     W 2,4,PY,450,0.00285,8.8,10,0.8,7.6
     S 5,EXTERNAL,i0
     Q 0.020455
     W 5,4,CV,0,0,15.2,17.6,0,0
     W 7,6,CV,0,0,16,22.4,0,0
     W 6,8,A2,0.4,0.00408,16,22.4,1.6,13.6
     W 2,6,A2,0.6,0.006,16,2.4,1.6,20
     W 4,7,A1,0.3,0.00168,16,17.6,1.6,4.8
     W 5,3,PY,500,0.00315,13.6,17.6,0.8,8.4
     W 1,5,PY,450,0.00285,13.6,10,0.8,7.6
     S 4,INTERNAL
     Q 0
     S 3,EXTERNAL,f
     Q 0.021985
     W 3,4,CV,0,0,16,10.4,0,0
     W 6,5,CV,0,0,11.2,17.6,0,0
     W 8,7,CV,0,0,11.2,23.2,0,0
     W 9,7,CV,0,0,11.2,28,0,0
     W 5,11,A2,0.55,0.00552,11.2,17.6,1.6,18.4
     W 1,5,A2,0.45,0.00456,11.2,2.4,1.6,15.2
     W 10,9,A1,0.2,0.00126,11.2,24.4,1.6,3.6
     W 8,10,A1,0,0.00042,11.2,23.2,1.6,1.2
     W 6,8,A1,0.7,0.00161,11.2,17.6,0.8,5.6
     W 2,6,A1,0.9,0.00207,11.2,10.4,0.8,7.2
     W 2,4,A1,0.6,0.00138,11.2,10.4,4.8,0.8
     S 2,EXTERNAL,vss
     Q 0.0245
     W 4,3,CV,0,0,6.4,1.6,0,0
     W 7,6,CV,0,0,11.2,1.6,0,0
     W 11,10,CV,0,0,16,1.6,0,0
     W 3,2,CV,0,0,6.4,6.4,0,0
     W 12,2,CV,0,0,6.4,10.4,0,0
     W 3,12,A1,0.4,0.00224,6.4,4,1.6,6.4
     W 10,9,A1,0,0.00174,16,4,2.4,6.4
     W 6,10,A1,0,0.00348,11.2,4,4.8,6.4
     W 3,6,A1,0,0.00348,6.4,4,4.8,6.4
     W 1,3,A1,0,0.00174,4,4,2.4,6.4
     S 1,EXTERNAL,vdd
     Q 0.02846
     W 5,1,CV,0,0,6.4,26.4,0,0
     W 6,4,CV,0,0,16,26.4,0,0
     W 7,1,CV,0,0,6.4,29.6,0,0
     W 8,4,CV,0,0,16,29.6,0,0
     W 14,10,CV,0,0,6.4,36,0,0
     W 15,11,CV,0,0,11.2,36,0,0
     W 16,12,CV,0,0,16,36,0,0
     W 7,10,A1,0.3,0.00168,6.4,29.6,1.6,4.8
     W 5,7,A1,0.2,0.00112,6.4,26.4,1.6,3.2
     W 8,12,A1,0.3,0.00168,16,29.6,1.6,4.8
     W 6,8,A1,0.2,0.00112,16,26.4,1.6,3.2
     W 12,13,A1,0,0.00174,16,34.4,2.4,6.4
     W 9,10,A1,0,0.00174,4,34.4,2.4,6.4
     W 11,12,A1,0,0.00348,11.2,36,4.8,6.4
     W 10,11,A1,0,0.00348,6.4,36,4.8,6.4
     K 0.00213,1,1,2,1
     K 0.00454,5,6,2,1
     K 0.00199,6,8,2,1
     EOF

   Example 2
     This example is a xor designed with three cells.

     V ALLIANCE : 6
     H gxor,L,29/ 3/99
     C vss,UNKNOWN,EXTERNAL,4,1,2,9,10
     C vdd,UNKNOWN,EXTERNAL,6,1,2,10,3
     C s,UNKNOWN,EXTERNAL,8,2
     C b,UNKNOWN,EXTERNAL,5,5
     C a,UNKNOWN,EXTERNAL,3,1
     I ndrvp_y,auxsc3
     C vss,UNKNOWN,INTERNAL,4,8,9
     C vdd,UNKNOWN,INTERNAL,6,9,10
     C i,UNKNOWN,INTERNAL,5,4,9
     C f,UNKNOWN,INTERNAL,7,8,12
     I mx2_y,s
     C vss,UNKNOWN,INTERNAL,4,4,8
     C vdd,UNKNOWN,INTERNAL,6,5,9
     C t,UNKNOWN,INTERNAL,8,1,3
     C l1,UNKNOWN,INTERNAL,7,1,11
     C l0,UNKNOWN,INTERNAL,2,4,8
     C i1,UNKNOWN,INTERNAL,3,11,13
     C i0,UNKNOWN,INTERNAL,5,1,8
     I ndrvp_y,auxsc1
     C vss,UNKNOWN,INTERNAL,4,2,3
     C vdd,UNKNOWN,INTERNAL,6,2,4
     C i,UNKNOWN,INTERNAL,3,10,12
     C f,UNKNOWN,INTERNAL,2,1,7
     S 8,EXTERNAL,s
     Q 0.0072
     W 2,1,A2,0.55,0.00528,79.2,0,1.6,17.6
     S 7,INTERNAL,auxsc3
     Q 0.02142
     W 3,2,CV,0,0,64.8,8.8,0,0
     W 5,4,CV,0,0,74.4,8.8,0,0
     W 7,6,CV,0,0,74.4,12.8,0,0
     W 10,9,CV,0,0,88.8,12.8,0,0
     W 9,8,A2,0.15,0.00144,88.8,12.8,1.6,4.8
     W 6,10,A1,1.8,0.00414,74.4,12.8,14.4,0.8
     W 4,7,A2,0.1,0.0012,74.4,8.8,1.6,4
     W 2,1,A2,0.25,0.00264,64.8,8.8,1.6,8.8
     W 3,5,A1,1.2,0.00276,64.8,8.8,9.6,0.8
     S 6,EXTERNAL,vdd
     Q 0.05453
     W 7,6,CV,0,0,37.6,48,0,0
     W 8,6,CV,0,0,37.6,51.2,0,0
     W 6,5,A1,0.1,0.00754,37.6,49.6,10.4,6.4
     W 4,6,A1,0,0.0029,33.6,49.6,4,6.4
     W 8,3,A2,0.05,0.00203,37.6,51.2,3.2,5.6
     W 7,8,A2,0.05,0.00116,37.6,48,3.2,3.2
     W 1,7,A2,0.75,0.0174,37.6,0,3.2,48
     S 5,EXTERNAL,b
     Q 0.02922
     W 3,2,CV,0,0,50.4,4.8,0,0
     W 7,6,CV,0,0,98.4,4.8,0,0
     W 6,4,A2,0.4,0.00384,98.4,4.8,1.6,12.8
     W 5,6,A2,0.15,0.00144,98.4,0,1.6,4.8
     W 2,1,A2,0.4,0.00384,50.4,4.8,1.6,12.8
     W 3,7,A1,6,0.0138,50.4,4.8,48,0.8
     S 4,EXTERNAL,vss
     Q 0.05453
     W 6,5,CV,0,0,44,17.6,0,0
     W 6,7,CV,0,0,44,20.8,0,0
     W 7,10,A2,0.55,0.01305,44,20.8,3.2,36
     W 1,5,A2,0.25,0.00638,44,0,3.2,17.6
     W 5,7,A2,0.05,0.00116,44,17.6,3.2,3.2
     W 6,4,A1,0,0.0029,44,19.2,4,6.4
     W 3,6,A1,0.1,0.00754,33.6,19.2,10.4,6.4
     S 3,EXTERNAL,a
     Q 0.03282
     W 3,2,CV,0,0,16.8,8.8,0,0
     W 5,4,CV,0,0,60,8.8,0,0
     W 7,6,CV,0,0,60,12.8,0,0
     W 9,8,CV,0,0,69.6,12.8,0,0
     W 8,11,A2,0.15,0.00144,69.6,12.8,1.6,4.8
     W 6,9,A1,1.2,0.00276,60,12.8,9.6,0.8
     W 4,7,A2,0.1,0.0012,60,8.8,1.6,4
     W 2,10,A2,0.25,0.00264,16.8,8.8,1.6,8.8
     W 1,2,A2,0.25,0.00264,16.8,0,1.6,8.8
     W 3,5,A1,5.4,0.01242,16.8,8.8,43.2,0.8
     S 2,INTERNAL,auxsc1
     Q 0.0225
     W 3,2,CV,0,0,7.2,12.8,0,0
     W 6,5,CV,0,0,55.2,12.8,0,0
     W 5,4,A2,0.15,0.00144,55.2,12.8,1.6,4.8
     W 2,1,A2,0.15,0.00144,7.2,12.8,1.6,4.8
     W 3,6,A1,6,0.0138,7.2,12.8,48,0.8
     S 1,INTERNAL,implicit
     Q 0
     EOF

SEE ALSO
     mbk(3)

ASIM/LIP6		   October 1, 1997 Release 5.0			   AL(5)

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