20-Aug-05 The files in this archive represent EPROM and PLD images for the Datum BC620AT ISA Bus time code processor board. Device types, checksums, and other details are as follows. U1: STMicro 27C256B-15 or equivalent Checksum-16: 64A6 Datum P/N: 9501258 U23: STMicro 2716-1 or equivalent Checksum-16: 28D2 Datum P/N: 9503025 U2: Altera EP610PC-35 or equivalent Checksum-16: FB2E Datum P/N: 9520022 U18: AMD PALCE16V8H or equivalent Checksum-16: B706 Datum P/N: 9528007 Note that the PLD checksums were taken on the entire file with Hex Workshop ver. 4.23. The actual checksum for just the JEDEC fuse map may be different. Happy tweaking. (Bruce Lane, Blue Feather Technologies) (kyrrin@bluefeathertech.com)