Description
Manufacturer: Toms
Year: 1991?
Picture
<missing>
Formats
SSSD S 1x40x18x128
SSED E 1x40x26x128
SSDD D 1x40x18x256
DSQD O 2x80x18x256
DSDD Q 2x40x18x256
SSID i 1x40x9x512
DSID I 2x40x9x512
DS?? C 2x80x9x512 - undocumented?
Speeds
70kbps, compatible with Engl-Turbo-1050
Commands
52 - Read sector
50 - Write sector
57 - Write sector with verify
53 - Get status
22 - Format ED
21 - Format
69 - ??? some kind of format
4E - Read PERCOM block
4F - Write PERCOM block
3F - Get high-speed index
23 - ???
24 - ???
Hardware
8055 cpu running on 6MHz, 8155, 27256 os eprom, 6264 sram, twd2797 fdc, 8255
for Centronics.
Four buttons, two digit display. One SIO port, one Centronics port.
Memory map (0 KB TXT).
Schematics
here (77 KB GIF), drawn by
Jerzy Sobola.
Misc
Has support for 3 other devices. D3: (romdisk), $40 (ramdisk?), $4D (printer). Can boot MyDos
from romdisk with drive opened.
Back (c) 1998-2004 Jindroush Last modified: Sun Jan 12 16:39:48 2003