Roland JD-Xi Midi Implementation

6
recomended that you set RPN Null (RPN Number = 7FH/7FH) when you have
nished setting the value of the desired parameter.
*
For more about the NRPN that JD-Xi transmit, refer to Control Change
Message List (p. 14).
7
Program Change
Status 2nd byte
CnH ppH
n = MIDI channel number: 0H - FH (ch.1 - 16)
pp = Program number: 00H - 7FH (prog.1 - prog.128)
*
These messages are transmitted when Program, Tone or Drum Kit is
selected. But not transmitted when Transmit Program Change parameter
(SysEx) is OFF.
7
Pitch Bend Change
Status 2nd byte 3rd byte
EnH llH mmH
n = MIDI channel number: 0H - FH (ch.1 - 16)
mm, ll = Pitch Bend value: 00 00H - 40 00H - 7F 7FH (-8192
- 0 - +8191)
9
System Realtime Messages
7
Active Sensing
Status
FEH
*
This message is transmitted at intervals of approximately 250 msec.
9
System Exclusive Messages
Universal Non-realtime System Exclusive Message and Data Set 1 (DT1)
are the only System Exclusive messages transmitted by the JD-Xi
7
Universal Non-realtime System Exclusive
Message
6
Identity Reply Message (JD-Xi)
Receiving Identity Request Message (p. 4), the JD-Xi send this
message.
Status Data byte Status
F0H 7EH, dev, 06H, 02H, 41H, 0EH, 03H, F7H
00H, 00H, 00H, 03H, 00H, 00H
Byte Explanation
F0H Exclusive status
7EH ID number (Universal Non-realtime Message)
dev Device ID (dev: 10H - 1FH)
06H Sub ID#1 (General Information)
02H Sub ID#2 (Identity Reply)
41H ID number (Roland)
0EH 03H Device family code
00H 00H Device family number code
00H 03H 00H 00H Software revision level
F7H EOX (End of Exclusive)
7
Data Transmission
6
Data set 1 (DT1)
Status Data byte Status
F0H 41H, dev, 00H, 00H, 00H, 0EH, 12H, aaH, bbH, F7H
ccH, ddH, eeH, ... H, sum
Byte Explanation
F0H Exclusive status
41H ID number (Roland)
dev Device ID (dev: 00H - 1FH, 7FH)
00H Model ID #1 (JD-Xi)
00H Model ID #2 (JD-Xi)
00H Model ID #3 (JD-Xi)
0EH Model ID #4 (JD-Xi)
12H Command ID (DT1)
aaH Address MSB: upper byte of the starting address of
the data to be sent
bbH Address: upper middle byte of the starting
address of the data to be sent
ccH Address: lower middle byte of the starting
address of the data to be sent
ddH Address LSB: lower byte of the starting address of
the data to be sent.
eeH Data: the actual data to be sent. Multiple
bytes of data are transmitted in order
starting from the address.
: :
H Data
sum Checksum
F7H EOX (End Of Exclusive)
*
The amount of data that can be transmitted at one time depends on
the type of data, and data will be transmitted from the specied
starting address and size. Refer to the address and size given in
Parameter Address Map (p. 8).
*
Data larger than 256 bytes will be divided into packets of 256
bytes or less, and each packet will be sent at an interval of about
20 ms.
3. Data Reception (Sequencer
Section)
3.1 Messages recorded during
recording
9
Channel Voice Messages
7
Note o
Status 2nd byte 3rd byte
8nH kkH vvH
9nH kkH 00H
n = MIDI channel number: 0H - FH (ch.1 - 16)
kk = note number: 00H - 7FH (0 - 127)
vv = note o velocity: 00H - 7FH (0 - 127)
7
Note on
Status 2nd byte 3rd byte
9nH kkH vvH
n = MIDI channel number: 0H - FH (ch.1 - 16)
kk = note number: 00H - 7FH (0 - 127)
vv = note on velocity: 01H - 7FH (1 - 127)

Roland JD-Xi Specifications

General

Pitch wheel	Yes
Product type	Digital/analog synthesizer
Product color	Black
Sound effects	Compression, Delay, Flanger/Digital Signal Processing (DSP), Phaser, Reverberation
Backlight color	Red
Keyboard number of keys	37
Maximum polyphony (notes)	129
Reverberation effects quantity	6
USB ports quantity	1
Display type	LCD
Display number of lines	2 lines
Display number of characters	16
Power source type	AC

Weight and Dimensions

Depth	245 mm
Width	575 mm
Height	85 mm
Weight	2200 g