-- HW 'GOSOF80' v2.1
-- Version 0.1 - rom read from SD card
-- Version 0.2 - rom read from SD card MA 216 & MA390
-- Version 0.3 - added MA55 support
-- Version 0.4 - with option DIP4 to on, romcode is read always from first secor ( sector #660 in fact)
-- Version 0.5 - MA490 support (SYS1 works partially)
-- Version 0.6 - SYS1 support
-- Version 0.7 - added Rocky
-- Version 0.8 - sb_opt(6) was on wrong IO ( PIN_51 instead of PIN_93)
---- 			 	- remark: sys1 playing only '10' & '1000' sounds is OK while game over is high!!
-- Version 0.9 - betaX Testversion Backgroundmusic with SYS1&SYS80(MA55)
-- Version 0.91 - clock adjustment via options DIPs 1..3 for all Soundboards