Description

The Casia Tyzack 64-M was constructed between 1987 and 1990 by the Dutch company Casia. It is basically a combination of a modified Sony HB-F9P MSX2, used as main computer, with a Toshiba HX-10P MSX1 used as sampler subsystem.

Besides, this transputer system has

a homebrew black and white digitizer with a resolution of 256 x 256 pixels
two stereo Philips SAA1099 sound generators with 6 channels per generator
a General Instrument SPO256-AL2 speech synthesizer (64 phonems)
a homebrew stereo AD/DA sampler, with its own RAM (partly inspired by the Doepfer/Elektor sampler, though much less sophisticated) - this sampler was external on the models released before 1989
an homebrew 48T interface for music keyboard
a MIDI interface (AY-3-1015 UART)
an RS-232C interface
a specific ROM that adds new instructions to BASIC - see Tyzack64M BASIC

64-M means that its RAM is theorically extendable to 64 Megabytes.

Brand	Casia
Model	Tyzack 64-M
Year	1987 to 1990
Region	the Netherlands
Launch price
RAM	1216kB : 128kB (Sony HB-F9P) + 64kB (Toshiba HX-10P) + 1024kB (sampler RAM)
VRAM	144kB : 128kB (Sony HB-F9P) + 16kB (Toshiba HX-10P)
Media	MSX cartridges
Video	Yamaha V9938 (Sony HB-F9P) + Texas Instruments TMS9929A (Toshiba HX-10P)
Audio	PSG (YM2149 integrated in MSX-Engine S1985) (Sony HB-F9P) + PSG (AY-3-8910A) (Toshiba HX-10P)
Chipset	Yamaha S1985 (Sony HB-F9P) + Toshiba TCX-1007 (Toshiba HX-10P)
Keyboard layout	QWERTY with a "£" key + numeric keypad
Extras	two stereo Philips SAA1099 sound generators, General Instrument SPO256-AL2 speech synthesizer, stereo AD/DA sampler, black and white digitizer, interface for music keyboard, MIDI interface, RS-232C interface, Tyzack64M BASIC, reset button
Emulation	not applicable