SCAPIN(1)						     CAO-VLSI Reference Manual							 SCAPIN(1)

NAME

       scapin - Scan path insertion

ORIGIN

       This  software  belongs	to  the  ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in
       Paris, France.

       Web : http://asim.lip6.fr/recherche/alliance/
       E-mail : alliance-users@asim.lip6.fr

SYNOPSIS

       scapin [-VRB] [-P file] Input_name Path_name Output_name

DESCRIPTION

       SCAPIN is an automatic scan path generator for gate level netlists.  SCAPIN inserts a scan path in the netlist Input_name and drives a  new
       netlist	Output_name.  This scan path contains all registers specified in the file Path_name.path (see below for the exact syntax).  SCAPIN
       adds also 3 new connectors in the netlist: scan_in, scan_out and scan_test in order to control the scan path.  Eventually  SCAPIN  adds	an
       output buffer before the output connector scan_out (option -B).

ENVIRONMENT VARIABLES

       MBK_WORK_LIB(1)
		 indicates the path to the read/write directory for the session.

       MBK_IN_LO(1)
		 indicates the input netlist file format.

       MBK_OUT_LO(1)
		 indicates the output netlist file format.

       SCAPIN_PARAM_NAME
		 indicates  the  location of a parameter file (with extention .scapin) containing the properties (ports name, models name etc ...)
		 of all cells needed for the scan path insertion.  (see below for the exact syntax)

OPTIONS

       -V	 Sets verbose mode on.	Each step is displayed on the standard output.

       -R	 All registers of the scan path are replaced by an equivalent scannable register cell (called reg-mux).  (With the default  option
		 a simple multiplexor is added just before all registers of the scan path).

       -B	 Adds an output buffer before the output connector scan_out.

       -P file	 Specifies  a  parameter  file (with extention .scapin) containing the properties of all cells needed for the scan path insertion.
		 (see below for the exact syntax)

		 # Example of .scapin file

		 BEGIN_MUX

		 MUX_MODEL	  mx2_x2
		 MUX_SEL	  cmd
		 MUX_INPUT_SEL	  i1
		 MUX_INPUT_NSEL   i0
		 MUX_VDD	  vdd
		 MUX_VSS	  vss
		 MUX_OUTPUT	  q

		 END_MUX

		 BEGIN_REG

		 REG_MODEL	  sff1_x4
		 REG_CLK	  ck
		 REG_INPUT	  i
		 REG_VDD	  vdd
		 REG_VSS	  vss
		 REG_OUTPUT	  q
		 REG_MUX	  mx2_x2
		 REG_REG_MUX	  sff2_x4

		 END_REG

		 BEGIN_REG_MUX

		 REG_MUX_MODEL	      sff2_x4
		 REG_MUX_SEL	      cmd
		 REG_MUX_INPUT_SEL    i1
		 REG_MUX_INPUT_NSEL   i0
		 REG_MUX_CLK	      ck
		 REG_MUX_VDD	      vdd
		 REG_MUX_VSS	      vss
		 REG_MUX_OUTPUT       q
		 REG_MUX_MUX	      mx2_x2
		 REG_MUX_REG	      sff1_x4

		 END_REG_MUX

		 BEGIN_BUF

		 BUF_MODEL	      buf_x2
		 BUF_INPUT	      i
		 BUF_VDD	      vdd
		 BUF_VSS	      vss
		 BUF_OUTPUT	      q

		 END_BUF

       Path_name Specifies a parameter file (with extention .path) containing an ordered list of all instances (registers) of the scan	path.	It
		 contains also the name of the 3 connectors scan_in, scan_out and scan_test.  (see below for the exact syntax)

		 # Example of .path file

		 BEGIN_PATH_REG

		 cs_0
		 cs_1
		 cs_2

		 END_PATH_REG

		 BEGIN_CONNECTOR

		 SCAN_IN      scin
		 SCAN_OUT     scout
		 SCAN_TEST    test

		 END_CONNECTOR

SEE ALSO

       MBK_IN_LO(1).  MBK_OUT_LO(1).  MBK_WORK_LIB(1).

BUG REPORT

       This tool is under development at the ASIM department of the LIP6 laboratory.
       We need your feedback to improve documentation and tools.

ASIM
/LIP6							   Juin 29, 2000							 SCAPIN(1)