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GenMDM Firmware v103 - Quick Reference MIDI Mapping by little-scale
21 January 2013
http://www.little-scale.blogspot.com.au/
direct questions to support@catskullelectronics.com
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Special thanks to: Freezedream, Lazerbeat, Aly James, Tanikugu, Paul Slocum, Christian Haines, Celsius, Dot.AY, 10k
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Firmware v103 Version Information:
* Added YM2612 and SN76489 data capture mode
* Added YM2612 and SN76489 data acquire mode
* Added TL Equal mode
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Firmware v102 Version Information:
* Native MIDI 5 pin DIN support via user-end hardware modification
* This is via the UART RX PIN, found on digital pin 7 of the Teensy board
* More cohesive handling of SSG-EG in terms of mapping - every OP and CH is catered for
* Storage and recall of 15 different RAM-based instruments for VERY quick instrument changes
* Reduced the sample storage ROM area by 2KB
* Simplified and restructured sample code and sample storage ROM area
* The current samples are just some 808 samples - looking to add user-assignable samples
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Firmware v101 Version Information:
* Added: control of YM2612 FM voice 3 mode
* Added: control of SSG-EG mode
* Added: control of test registers 0x20, 0x27, 0x2A and 0x2C
* Trimmed code
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MIDI Channel Sound Chip Mapping
* YM2612 FM sound chip is mapped to MIDI channels 1 - 6.
* SN76489 PSG sound chip is mapped to MIDI channels 7 - 10.
* YM2612 FM voice 3 special mode is mapped to MIDI channels 11 - 13.
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YM2612 FM Sound Chip Mapping
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Parameter CC Data Range
* LFO Enable (Global) 74 2
* LFO Speed 1 8
* Pitch Transposition 85 128
* Octave Division 84 128
* PAL / NTSC Tuning 83 2
* Voice 3 Special Mode 80 2
* Test Register 0x27 Lowest Six Bits 92 64
* Test Register 0x27 Highest One Bit 93 2
* Test Register 0x20 Lowest Four Bits 94 16
* Test Register 0x20 Highest Four Bits 95 16
* Test Register 0x2C Lowest Four Bits 96 16
* Test Register 0x2C Highest Four Bits 97 16
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Special Mode
* When Voice 3 is in Special Mode, each operator of Voice 3 has its own frequency
* In this case, the frequency for each is controlled using MIDI ch 3, 11, 12 and 13
* In this case, the TL / volume of each operator is controlled via velocity
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Channel / Voice Control CC Data Range
* Preset Instrument Setting Store in RAM 6 16
* Preset Instrument Setting Recall from RAM 9 16
* Frequency Note Number 128
* Pitch Bend Amount 81 18
* FM Algorithm 14 8
* FM Feedback 15 8
* Stereo Configuration 77 4
* Amplitude Modulation Level 76 8
* Frequency Modulation Level 75 8
* SSG-EG Operator 1 On and Setting 90 16
* SSG-EG Operator 2 On and Setting 91 16
* SSG-EG Operator 3 On and Setting 92 16
* SSG-EG Operator 4 On and Setting 93 16
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* The 8 FM algorithms are as follows:
* Algorithm 00: OP1 (m) --> OP2(m) --> OP3 (m) --> OP4 (c)
* Algorithm 01: OP1 (m) && OP2 (m) --> OP3 (m) --> OP4 (c)
* Algorithm 02: (OP1 (m) && (OP2 (m) --> OP3 (m))) --> OP4 (c)
* Algorithm 03: ((OP1 (m) --> OP2 (m)) && OP3 (m)) --> OP4 (c)
* Algorithm 04: OP1 (m) --> OP2 (c) && OP3 (m) --> OP4 (c)
* Algorithm 05: OP1 (m) --> (OP2 (c) && OP3 (c) && OP4 (c))
* Algorithm 06: OP1 (m) --> OP2 (c) && OP3 (c) && OP4 (c)
* Algorithm 07: OP1 (c) && OP2 (c) && OP3 (c) && OP4 (c)
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Operator Control CC Data Range
* Total Level OP 1 16 128
* Total Level OP 2 17 128
* Total Level OP 3 18 128
* Total Level OP 4 19 128
* Multiple OP 1 20 16
* Multiple OP 2 21 16
* Multiple OP 3 22 16
* Multiple OP 4 23 16
* Detune OP 1 24 8
* Detune OP 2 25 8
* Detune OP 3 26 8
* Detune OP 4 27 8
* Rate Scaling OP 1 39 4
* Rate Scaling OP 2 40 4
* Rate Scaling OP 3 41 4
* Rate Scaling OP 4 42 4
* Attack Rate OP 1 43 32
* Attack Rate OP 2 44 32
* Attack Rate OP 3 45 32
* Attack Rate OP 4 46 32
* First Decay Rate OP 1 47 32
* First Decay Rate OP 2 48 32
* First Decay Rate OP 3 49 32
* First Decay Rate OP 4 50 32
* Secondary Decay Rate OP 1 51 16
* Secondary Decay Rate OP 2 52 16
* Secondary Decay Rate OP 3 53 16
* Secondary Decay Rate OP 4 54 16
* Secondary Amplitude Level OP 1 55 16
* Secondary Amplitude Level OP 2 56 16
* Secondary Amplitude Level OP 3 57 16
* Secondary Amplitude Level OP 4 58 16
* Release Rate OP 1 59 16
* Release Rate OP 2 60 16
* Release Rate OP 3 61 16
* Release Rate OP 4 62 16
* Amplitude Modulation Enable OP 1 70 2
* Amplitude Modulation Enable OP 2 71 2
* Amplitude Modulation Enable OP 3 72 2
* Amplitude Modulation Enable OP 4 73 2
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DAC Control (MIDI Channel 6) CC Data Range
* DAC Enable 78 2
* DAC Direct Data 79 128
* DAC Sample Pitch Speed 86 128
* DAC Sample Oversample 88 16
* DAC Noise / Custom Wave Mode 89 2
* Custom Wave Byte 1 of 14 100 128
* Custom Wave Byte 2 of 14 101 128
* Custom Wave Byte 3 of 14 102 128
* Custom Wave Byte 4 of 14 103 128
* Custom Wave Byte 5 of 14 104 128
* Custom Wave Byte 6 of 14 105 128
* Custom Wave Byte 7 of 14 106 128
* Custom Wave Byte 8 of 14 107 128
* Custom Wave Byte 9 of 14 108 128
* Custom Wave Byte 10 of 14 109 128
* Custom Wave Byte 11 of 14 110 128
* Custom Wave Byte 12 of 14 111 128
* Custom Wave Byte 13 of 14 112 128
* Custom Wave Byte 14 of 14 113 128
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Global Control CC Data Range
* Pitch Transposition 85 128
* PAL / NTSC 83 2
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Noise Channel Control Type
* C and C# High Frequency; Periodic Type
* D and D# Medium Frequency; Periodic Type
* E Low Frequency; Periodic Type
* F High Frequency; Noise Type
* F# Medium Frequency; Noise Type
* G and G# Low Frequency; Noise Type
* A and A# Channel 9; Periodic Type
* B Channel 9; Noise Type
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Other
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Generate VGM Files (Experimental) CC Data Range
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* Enable / Disable data capture mode 114 2
* Enable data acquire mode 115 2
* Disable data acquire mode Ch 16 Note 127
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