C:util>isp8252c -h

ISP8252C 1.00.01, (C) Copyright 1998-1999 by Daniel L. Henry.
Atmel AT89S8252 In-System-Programming Utility

Usage: isp8252c [-bBdDehipPvV] [-c comm_port] [-f codefile]  [-F datafile]
                [-l lock_bits] [-s pace_clks] [-u code_fill] [-U data_fill]

-b, -B        Blank check code (b) and/or data (B) memory
-c comm_port  ISP communications port name (default "COM1")
-d, -D        Dump code (d) and/or data (D) memory to standard output
-e            Erase and verify chip (both code and data memory)
-f codefile   Intel HEX file filename for code programming or verification
-F datafile   Intel HEX file filename for data programming or verification
-h, -?        Output usage information to standard output
-i            Ignore device errors
-l lock_bits  Program lock bits '1' (LB1), '2' (LB2), and/or '3' (LB3)
-p, -P        Program and verify code (p) and/or data (P) memory
-s pace_clks  ISP SCK pacing clocks
-u code_fill  Unused code memory fill byte (default 0xFF)
-U data_fill  Unused data memory fill byte (default 0xFF)
-v, -V        Verify code (v) and/or data (V) memory