ATARI 65XEM
Image, description and specification taken with permission by 
Atari announced a second variation of the 65XE, the 65XEM (for XE Music). This version featured a new powerful polyphonic sound chip called AMY with 8 independent sound voices and 64 oscillators. It was able to synthesize voice and any musical instrument sound much better than the Commodore 64 's SID chip. However, the AMY chip never reached production, so the 65XEM never passed the prototype stage either.
|
System unit |
Description |
Processor |
|
Clock speed |
1.79 MHz (NTSC) 1.77 MHz (PAL) |
RAM |
64 KB |
ROM |
24 kb (16 KB for OS, 8 KB for Atari BASIC) |
O.S. version(s) |
|
Built-in software |
Self-Test, Atari Basic Revision C |
Parallel Bus Interface |
Yes |
Colors |
16 colors with 16 intensity level each |
Sound |
8 voices, 11 octaves (AMY chip) |
Text modes |
Five text modes, max: 40 x 24, min: 20 x 12 |
Graphics modes |
11 graphic modes, maximum: 320 x 192 pixels |
Co-processor |
GTIA (video), POKEY (Sound, I/O), ANTIC (Video), FREDDY (memory) |
Keyboard |
Full-stroke keyboard, 57 keys 5 function keys (Help, Start, Select, Option, Reset) |
I/O ports |
Composite video output, Cardridge port, Expansion port, SIO peripheral port (tape, disk, printer, modem), 2 x joystick connectors |
Size / Weight |
|
Build-in media |
None |
Power supply |
external power supply unit - 1A, 5v cc |
