YMU757B Datasheet, PDF (2/43 Pages) YAMAHA CORPORATION – MA-1C

YMU757B
Contents
• General description of YMU757B.………………………………………………………………3
• Block description……..…………………………………………………………………………4
• Pin configuration…..……………………………………………………………………………5
• Pin description….………………………………………………………………………………6
• Block diagram…..………………………………………………………………………………7
• Register map…….………………………………………………………………………………8
• Explanation of registers….………………………………………………………………………9-20
Musical score data...……………………………………………………………………9-13
Timbre data……….……………………………………………………………………14-17
Other control data………………………………………………………………………17-20
• Power-down control division diagram……………………………………………………………21
• Explanation of each bit..…...……………………………………………………………………21-23
• Resetting………………………………………..….………………………………………………24
• Settings & procedure required to generate melody…………………………………………………24
• Settings of clock frequency…………………………………………………………………………24
• Interrupt sequence...…..…………………………………………………………………………25
• State transition description..……...………………………………………………………………26-27
• Operation in FIFO empty state...…………………………………………………………………28
• Reproduction method assuming occurrence of empty state…………………………………………28
• Example of system connection...…………………………………………………………………29
• One sound and volume level adjustment in 4 sound pronunciation.…………………………………30-31
• Sound quality correction circuit.…………………………………………………………………32-33
• Serial interface specifications.……………………………………………………………………34
• Electrical characteristics….………………………………………………………………………35-40
• General description of FM sound generator.………………………………………………………41
• External dimensions……..………………………………………………………………………42
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