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