Actually I think the scans are from the SFG-01 datasheets; they're exactly the same as the ones in the Service Manual I have. Note that the register description is in fact that of the YM2148, and that the first two registers are the YM2151 OPM sound chip _as_well_ - the YM2148 provides a signal to select the YM2151 (OPM#). Richard -- For info, see http://www.stack.nl/~wynke/MSX/listinfo.html
