scapin.1alc - Man Page
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