scapin - Online in the Cloud

PROGRAM:

NAME

scapin - 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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