scapin(1) Scan path insertion

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

       

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