Byte (Bajt)

Russiam ZX Spectrum clone. Has 8253 sound generator, extra keys and can operate in two modes: ZX Spectrum and upgraded.

Pressing <S>, <D>, <F> together while reset performs some self test. In ZX mode there are no keyboard and sound tests.

Extra keys <PF1> to <PF6> appear as bit 7 of port #FE, while <LAT>, <LAT/RUS>, <RUS> keys are as bit 5.

The 8253 seems to be available in ports #8E, #AE, #CE and #EE. No idea if all generators are used for sound or only one.

Files for download

16406156.jpg 85.6kB (2005-03-01 13:36)

Some photos from auction.

slots.html 3.6kB (2005-07-27 17:28)

SIST slot description.

byteroms.zip 25.0kB (2004-05-26 21:25)

ROMs for both work modes.

byte1.png 26.4kB (1999-01-14 06:00)

Dirty picture of board arrangement, part 1.

byte2.png 26.4kB (1999-01-14 06:00)

Dirty picture of board arrangement, part 2.