Juno-106 MIDI Implementation

This information is taken from the Juno-106 Owner's Manual. Corrections can be mailed to Chad Beeder at syzygy@eskimo.com.

Transmitted Data

When MIDI Function is 1.

Note events, Hold on/off, and Channel Mode messages are sent.

Status	Second	Third	Description
`1001 nnnn`	`0kkk kkkk`	`0100 0000`	Note On
`1001 nnnn`	`0kkk kkkk`	`0`	Note Off
`1011 nnnn`	`0100 0000`	`0111 1111`	Hold On (from rear panel jack)
`1011 nnnn`	`0100 0000`	`0`	Hold Off
`1011 nnnn`	`0111 1011`	`0`	All Notes Off*
`1011 nnnn`	`0111 1100`	`0`	Omni Off**
`1011 nnnn`	`0111 1111`	`0`	Poly On**

Notes:

nnnn: MIDI channel number-1. (If chan=1, nnnn=0000)
kkkkkkk: 24-108
* When all notes turn off
** When power up or MIDI channel number is set

When MIDI Function is 2.

All messages in Function 1, plus Program Change, Bender, and LFO Modulation are sent.

Status	Second	Third	Description
`1100 nnnn`	`0ppp pppp`		Program Change (0-127)
`1110 nnnn`	`0bb0 0000 (LSB)`	`0bbb bbbb (MSB)`	Pitch Bender MAX (high): MSB=127, LSB=96 CENTER: MSB=64, LSB=0 MIN (low): MSB=0, LSB=0
`1011 nnnn`	`0000 0001`	`0111 1111`	LFO Modulation On
`1011 nnnn`	`0000 0001`	`0`	LFO Modulation Off

When MIDI Function is 3.

All messages in Function 1, plus Bender, LFO Modulation and System Exclusive messages are sent.

Recognized Receive Data

When MIDI Function is 1.

When power is first applied, receiver's mode is Omni On, Poly mode. Note events, Hold on/off and Channel Mode messages are recognized.

Status	Second	Third	Description
`1000 nnnn`	`0kkk kkkk`	`0vvv vvvv`	Note Off, velocity ignored
`1001 nnnn`	`0kkk kkkk`	`0000 0000`	Note Off kkkkkkk=0-127 (24-108)
`1001 nnnn`	`0kkk kkkk`	`0vvv vvvv`	Note On kkkkkkk=0-127 (24-108) vvvvvvv=1-127, velocity ignored
`1011 nnnn`	`0100 0000`	`0`	Hold Off
`1011 nnnn`	`0100 0000`	`0vvv vvvv`	Hold On vvvvvvv=1-127
`1011 nnnn`	`0111 1011`	`0`	All Notes Off
`1011 nnnn`	`0111 1100`	`0`	Omni Off
`1011 nnnn`	`0111 1101`	`0`	Omni On
`1011 nnnn`	`0111 1110`	`0mmm mmmm`	Mono On
`1011 nnnn`	`0111 1111`	`0`	Poly On

Notes:

Mode messages (123-127) are also recognized as All Notes Off.
The Juno-106 does not respond to Mono On messages.

Mode messages are recognized as follows:

	Poly On	Mono On mmmmmmm=1	Mono On mmmmmmm<>1
Omni Off ($7C)	Omni=Off, Poly	Omni=Off, Poly	Omni=On, Poly
Omni On ($7D)	Omni=On, Poly	Omni=On, Poly	Omni=On, Poly

Recognized channels are as follows:

Mode	Voice Messages	Mode Messages
Omni Off mode	Basic channel only	Basic channel only
Omni On mode	All channels	Basic channel only

When MIDI Function is 2.

All messages in Function 1, plus Program Change, Bender, and LFO Modulation are recognized.

Status	Second	Third	Description
`1100 nnnn`	`0ppp pppp`		Program Change (0-63: Bank A, 64-127: Bank B)
`1110 nnnn`	`0b00 0000`	`0bbb bbbb`	Pitch Bender (Least significant 6 bits are ignored)
`1011 nnnn`	`0000 0001`	`0vvv vvvv`	LFO Modulation (v=0-127)

Notes:

Sensitivity of the pitch bender and modulation can be adjusted by receiver.

When MIDI Function is 3.

All messages in Function 2, plus System Exclusive messages are recognized.

Exclusive Messages

When Group, Bank, or Patch Number is changed.

	Byte	Description
a	`1111 0000 ($F0)`	Exclusive
b	`0100 0001 ($41)`	Roland ID#
c	`0011 0000 ($30)`	Function Type
d	`0000 nnnn ($0N)`	N+1=MIDI channel (N=0-15)
e	`0xxx xxxx`	Program Number (0-127)
f	`0zzz zzzz`	Value (0-127) (18 bytes total for values)
g	`1111 0111 ($F7)`	EOX (End of Exclusive)

Example:

   a  b  c  d  e   f  f  f  f  f  f  f  f  f
   F0 41 30 00 00  39 2D 00 37 00 55 00 00 00

   f  f  f  f  f  f  f  f  f   g
   19 34 3B 20 56 28 00 1A 18  F7

When Manual button is pressed.

	Byte	Description
a	`1111 0000 ($F0)`	Exclusive
b	`0100 0001 ($41)`	Roland ID#
c	`0011 0001 ($31)`	Function Type
d	`0000 nnnn ($0N)`	N+1=MIDI channel (N=0-15)
e	`0000 0000 ($00)`	Number indicates "Manual"
f	`0zzz zzzz`	Value (0-127) (18 bytes total for values)
g	`1111 0111 ($F7)`	EOX (End of Exclusive)

Example:

   a  b  c  d  e   f  f  f  f  f  f  f  f  f
   F0 41 31 00 00  03 00 00 00 00 3F 3C 00 00

   f  f  f  f  f  f  f  f  f   g
   7F 45 00 00 7F 00 00 2A 19  F7

When sliders are adjusted or switches are changed.

	Byte	Description
a	`1111 0000 ($F0)`	Exclusive
b	`0100 0001 ($41)`	Roland ID#
c	`0011 0010 ($32)`	Function Type
d	`0000 nnnn ($0N)`	N+1=MIDI channel (N=0-15)
e	`0yyy yyyy`	Parameter number (0-17) (See below)
f	`0zzz zzzz`	Value (0-127)
g	`1111 0111 ($F7)`	EOX (End of Exclusive)

Example:

   a  b  c  d  e   f   g
   F0 41 32 00 03  04  F7

Parameter number table

**For sliders:**
$00	LFO rate
$01	LFO delay
$02	DCO LFO modulation level
$03	DCO PWM modulation level
$04	Noise level
$05	VCF cutoff level
$06	VCF resonance level
$07	VCF ENV level
$08	VCF LFO modulation level
$09	VCF KYBD modulation level
$0A	VCA level
$0B	ENV attack rate
$0C	ENV decay rate
$0D	ENV sustain level
$0E	ENV release rate
$0F	Sub level

**For buttons/switches:**
bit:	6	5	4	3	2	1	0
$10	Chorus Level 1: I, 0: II	Chorus 1: Off, 0: On	Sawtooth 1: On, 0: Off	Pulse 1: On, 0: Off	Range 100: 4', 010: 8', 001: 16'
$11	0	0	High Pass Filter 11: Off, 10: 1, 01: 2, 00: 3		VCA 1: gate, 0: ENV	ENV 1: -, 0: +	PWM 1: Manual, 0: LFO