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MIDI Implementation
Model CDX-1 Version 1.01, Apl. 16 2001

1. RECOGNIZED RECEIVE DATA

■ Channel Voice Message

● Note On/Off
Receive the note number which is designated with “RxNote”, in the MIDI channel number
which is designated with “Pads Rx Ch.” in the UTILITY “MIDI.”
Status Second Third
9nH mmH llH
n = MIDI Channel No.: 00H–0FH (ch.1–ch.16)
mm = Note No.: 00H–7FH (0–127)
ll = Velocity: 01H–7FH (1–127) / 00H = NOTE OFF
● Program Change
Works as bank switch when MIDI channel number is set for playing the sample.
Status Second
CnH ppH
n = MIDI Channel No.: 00H–0FH (ch.1–ch.16)
pp = Program No.: 00H–3FH (0–63)

■ Channel Mode Message

● All Sound Off (Controller Number 120)
Mutes all sounding notes, in the MIDI channel number which is designated with “Pads Rx
Ch.” in the UTILITY “MIDI.”
Status Second Third
BnH 78H 00H
n = MIDI Channel No.: 00H–0FH (ch.1–ch.16)
● All Note Off (Controller Number 123)
Mutes all sounding notes, in the MIDI channel number which is designated with “Pads Rx
Ch.” in the UTILITY “MIDI.”
Status Second Third
BnH 7BH 00H
n = MIDI Channel No.: 00H–0FH (ch.1–ch.16)
● System Exclusive Message
Status Data Bytes Status
F0H iiH,ddH, ..., eeH F7H
Byte Description
F0H Status of System Exclusive Message
iiH Manufacturer ID
41H RolandsManufacturerID'
7EH Universal Non Realtime Message
7FH Universal Realtime Message
ddH Data: 00H–7FH (0–127)
| |
eeH Data
F7H EOX (End of System Exclusive Message)
● Universal System Exclusive Message
❍INQUIRY MESSAGE
✧ Identity Request
Status Data Bytes Status
F0H 7EH, Dev, 06H, 01H F7H
Byte Description
F0H Status of System Exclusive Message
7EH Universal System Exclusive Message Non Realtime Header
Dev Device ID (10H or 7FH)
06H General Information (sub-ID #1)
01H Identify Request (sub-ID #2)
F7H EOX (End of System Exclusive Message)
The message is used to request the particular of the CDX-1.
If CDX-1 received the message and the device ID of the message is same as 10H or 7FH, the
CDX-1 transmits the prescribed Identity Replay message.
❍ MIDI Machine Control Commands
Status Data Bytes Status
F0H 7FH, Dev, 06H, aaH,..., bb F7H
Byte Description
F0H Status of System Exclusive Message
7FH Universal System Exclusive Message Realtime Header
Dev Device ID (10H or 7FH)
06H MMC Command Message
aaH Command
| |
bbH Command
F7H EOX (End of System Exclusive Message)
* See “2. MIDI Machine Control“ section.

2. MIDI Machine Control

■ MIDI Machine Control Details

● STOP (MCS)
Status Data Bytes Status
F0H 7FH, Dev, 06H, 01H F7H
Byte Description
F0H Status of System Exclusive Message
7FH Universal System Exclusive Message Realtime Header
Dev Device ID (10H or 7FH)
06H MMC Command Message
01H STOP (MCS)
F7H EOX (End of System Exclusive Message)
If the device ID on the message was as same as that of the receiving 10H or 7FH, the CDX-1
stops immediately.
● PLAY (MCS)
Status Data Bytes Status
F0H 7FH, Dev, 06H, 02H F7H
Byte Description
F0H Status of System Exclusive Message
7FH Universal System Exclusive Message Realtime Header
Dev Device ID (10H or 7FH)
06H MMC Command Message
02H PLAY (MCS)
F7H EOX (End of System Exclusive Message)
If the device ID on the message was as same as that of the receiving 10H or 7FH, the CDX-1
goes into the playback condition.
● DEFERRED PLAY (MCS)
Status Data Bytes Status
F0H 7FH, Dev, 06H, 03H F7H
Byte Description
F0H Status of System Exclusive Message
7FH Universal System Exclusive Message Realtime Header
Dev Device ID (10H or 7FH)
06H MMC Command Message
03H DEFERRED PLAY (MCS)
F7H EOX (End of System Exclusive Message)
If the device ID on the message was as same as that of the receiving 10H or 7FH, the CDX-1
goes into the playback condition after the locate operation.
● FAST FORWARD (MCS)
Status Data Bytes Status
F0H 7FH, Dev, 06H, 03H F7H
Byte Description
F0H Status of System Exclusive Message
7FH Universal System Exclusive Message Realtime Header
Dev Device ID (10H or 7FH)
06H MMC Command Message
03H DEFERRED PLAY (MCS)
F7H EOX (End of System Exclusive Message)
If the device ID on the message was as same as that of the receiving 10H or 7FH, the CDX-1
goes into the fast forward condition.