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vendor:yamaha:opl2 [2019/04/07 17:49]
lord_nightmare add link to D0/D1 debug info
vendor:yamaha:opl2 [2019/04/07 19:46]
lord_nightmare fix formatting
Line 40: Line 40:
  
 === YM2413 D0/D1 debug state === === YM2413 D0/D1 debug state ===
-see Nuke.YKT'​s notes at https://​pastebin.com/​H5s4WQQ8+from Nuke.YKT'​s notes at https://​pastebin.com/​H5s4WQQ8 ​
 +<​code>​ 
 +YM2413 test data output format(!!not verified on hardware!!). 
 +/CS = 0 
 +/WE = 1 
 +A0  = 0 
 +D0 and D1 serially output test data with internal clock rate 
 +Internal clock rate is MCLK/4 
 +Clock 0  1  2  3  4  5  6  7  8  9  10 11 12 13 14 15 16 17 
 +D0:   P8 P7 P6 P5 P4 P3 P2 P1 P0 E6 E5 E4 E2 E1 E0 0  0  0 
 +D1:   C8 C7 C6 C5 C4 C3 C2 C1 C0 0  0  0  0  0  0  0  0  0 
 +  
 +Px - Operator 0 phase generator output LSB bits 
 +Ex - Operator 17 envelope generator output 
 +Cx - Channel 6(?) output 
 +</​code>​ 
  
 === VRC7 TEST register (0x0F) === === VRC7 TEST register (0x0F) ===
 
vendor/yamaha/opl2.txt · Last modified: 2019/04/07 19:46 by lord_nightmare
 
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