PSR-70 PortaSound

Game Information

manufacturer	Yamaha
year	1985
clone of	psr60
other clones	psr70
genre	N/A
downloads	0

Screenshots

Download Details

split set	psr70.zip 21.03k
parent set	psr60.zip 90.20k ↗
standalone set	psr70.7z 80.09k

Game Details

Musical Instrument (Electronic) published 40 years ago:

PSR-70 PortaSound (c) 1985 Yamaha

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Edit this entry: https://www.arcade-history.com/?&page=detail&id=289792&o=2

Driver Details

source	yamaha/ympsr60.cpp
status	imperfect
emulation	good
savestate	unsupported
type	sound
status	imperfect

Screen Details

Input Details

player	1
type	keyboard
buttons	153
directions	N/A

Chipset Details

name	Zilog Z80
clock	5.72mhz

name	Speaker
clock	N/A

name	Speaker
clock	N/A

name	Generic Audio Mixer
clock	N/A

name	Generic Audio Mixer
clock	N/A

name	Biquad Filter
clock	N/A

name	Biquad Filter
clock	N/A

name	Biquad Filter
clock	N/A

name	RC Filter
clock	N/A

name	Generic Audio Mixer
clock	N/A

name	MN3204P BBD
clock	48.83khz

name	Biquad Filter
clock	N/A

name	RC Filter
clock	N/A

name	Biquad Filter
clock	N/A

name	YM3533 OPQ
clock	3.41mhz

name	YM2154 (RYP4)
clock	2.15mhz

ROM Details

name	size	crc
psr70-rom1.bin	32.00k	bf134412
yamaha_psr60_pgm_ic110.bin	32.00k	39db8c74
ym21908.bin	32.00k	5d0e1d9f
ym21909.bin	32.00k	a555b42a