Denon DN-700C

DN-700C/DN-501C
MIDI Command Guide
7
3. Communication Protocol
Commands are sent using command packets between the start byte and end byte.
This is the format of command packet:
Format
(0x11)
Total Command Packet
(1 byte)
Remain Command Packet
(1 byte)
Command
(2 bytes)
Parameter Pack Length
(1 byte)
Parameter Pack
(0-80 bytes)
Checksum
(2 bytes)
Item Remarks
Format 0x11 Fixed.
Total Command Packet This is used when sending a command whose parameter length is more than 80 bytes.
When the parameter length is 80 bytes or less, the Total Command Packet is 1.
Remain Command Packet This is used when sending a command whose parameter length is more than 80 bytes.
When the parameter length is 80 bytes or less, the Total Command Packet is 0.
Command This is structured by the Category code and Command. The length is 2 bytes.
Parameter Pack Length The length of the Parameter Pack. The maximum length is 80 bytes.
Parameter Pack The command parameter.
Checksum The sum from Format to Parameter Pack.
The MSB 4-bit and LSB 4-bit are then translated into ASCII code.
Example: In ASCII, “3” is 0x33 and “F” is 0x46. When the checksum is 0x3F, this is translated into “0x33, 0x46”.
0x F0004003
(Start Byte)
Command Packet
0xF7
(End byte)