
DN-C680
Serial Port
Specifications
1. Port settings = RS232C/422A
2. Baud rate = 9600 or 19,200 (CD player and computer must match)
(Adjustable within the preset mode)
3. Data bits = 8
4. Parity = Even
5. Stop bits = 1
Page 1
*Page 2~14 does not exist
DENON, LTD.

SOFTWARE SPECIFICATIONS
1. Command List (ASCII Code is used to the commands)
Code Command Parameter Discription
Scan 1 byte, SCAN mode *(1) Performs the manual search (scan) with the selected direction and
(1) b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
X 0 0 0 0 0 0 0 : Block Repeat
X 0 0 0 0 0 0 1 : Step 1 Speed (About 2 Times)
X 0 0 0 0 0 1 0 : Step 2 Speed (About 4 Times)
A
B Back Cue Non Returns to the playback start position.
D End Moitor Non Starts the end monitor program.
Send Time 1 Byte, TIME mode *(1) Requests the time code with the frame unit.
X 0 0 0 0 1 0 0 : Step 3 Speed (About 8 Times)
X 0 0 0 1 0 0 0 : Step 4 Speed (About 12 Times)
X 0 0 1 0 0 0 0 : Step 5 Speed (About 16 Times)
X 0 0 1 1 0 0 0 : Step 6 Speed (About 24 Times)
X 0 1 0 0 0 0 0 : Step 7 Speed (About 32 Times)
0 X X X X X X X : Forward
1 X X X X X X X : Reverse
speed.
(1) b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
E
F Eject Non Performs the disc eject operation.
H Send Reserved Track Non Requests the reserved track in the play mode, or programs step in the
I Index Search 2 bytes (Track, Index) Searches the selected index.
Jump 1 byte, JUMP mode *(1) Jumps the track up or down with the selected type.
J
Frame Cueing 1 byte, Frames *(1) Moves the selected frames with block repeat form.
K
0 0 0 0 0 0 0 0 : P-Time (Elapse)
0 0 0 0 0 0 0 1 : P-Time (Remain)
0 0 0 0 0 0 1 0 : A-Time (Elapse)
0 0 0 0 0 0 1 1 : A-Time (Remain)
program mode.
(1) b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
X X X X 0 0 0 1 : 1 Track Move
X X X X ~ : ~
X X X X 1 1 1 1 : 15 Tracks Move
X 1 X X X X X X : Track (fixed Code)
0 X X X X X X X : Forward
1 X X X X X X X : Reverse
(1) b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
X 0 0 0 0 0 0 0 : No Move
X 0 0 0 0 0 0 1 : 1 Frame Move
X ~ : ~
X 1 1 1 1 1 1 1 : 127 Frame Move
0 X X X X X X X : Forward
1 X X X X X X X : Reverse

Code Command Parameter Discription
Mode Set 1 byte, Frames mode *(1) Performs the playback or the record set mode.
(1) b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
X 0 0 0 0 0 0 1 : Play Mode (Set : Single/Cancel : Continue)
X 0 0 0 0 0 1 0 : Play Repeat in the Playback Mode
X 0 0 0 0 0 1 1 : Time Code Display Mode (Set : Remain/Cancel : Elapse)
X 0 0 0 1 0 0 0 : Serial Multi-ID Mode (Set/Cancel)
X 0 0 0 1 0 0 1 : A-B Playback Mode
X 0 0 0 1 0 1 0 : Pitch (Set : Pitch ON/Cancel : Pitch OFF)
M
X 0 0 0 1 1 1 0 : Program (Set : Program ON/Cancel : Program OFF)
X 0 0 1 0 1 0 1 : Finish Next (Set : Next/Cancel : Next → Stop)
X 0 0 1 0 1 1 0 : Finish Recue (Set : Recue/Cancel : Recue → Stop)
X 0 0 1 1 0 0 0 : Auto Cue (Set/Cancel)
X 0 0 1 1 0 0 1 : Auto Edit (Set/Cancel)
X 0 0 1 1 0 1 0 : Fader (Set/Cancel)
X 0 0 1 1 0 1 1 : Auto Space (Set/Cancel)
X 0 0 1 1 1 0 0 : Index (Set/Cancel)
0 X X X X X X X : Cancellation
1 X X X X X X X : Set
(Set : Repeat/Cancel : Repeat OFF)
(Set : A-B Playback Mode/Cancel : A-B Playback Mode → Single)
Option 12 bytes, Option No.
*(1) ~ (12)
Information Request Item Code
(1)
b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
0 0 0 0 0 0 0 0 : (0) TOC Information
0 0 0 0 0 1 0 1 : (1) System Information : Old Format
0 0 0 0 0 1 1 0 : (2) System 1 Information : New Format
0 0 0 0 0 1 1 1 : (3) System 2 Information : New Format
0 0 0 0 1 0 0 1 : (4) CPU Version Number
0 0 0 1 0 0 0 0 : (5) Track playback Time and Track Mode
0 1 1 0 0 1 1 0 : (6) A Set Time
0 1 1 0 0 1 1 1 : (7) B Set Time
1 0 0 0 0 0 0 0 : (8) Category and Model Number : Old Format
1 0 0 0 0 0 0 1 : (9) Category and Model Number : New Format
O
Old Format System Information 1 Code
(2)
b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
X X X X X X X 1 : FL Tube “EJECT LOCK” lights (0 : Unlight)
X X X X X X 1 X : LED “PITCH” lights (0 : Unlight)
X X X X X 1 X X : FL Tube “REMAIN” lights (0 : Unlight)
X X X X 1 X X X : FL Tube “DIGITAL” lights (0 : Unlight)
X X 1 X X X X X : FL Tube “CUE” lights (0 : Unlight)
X 1 X X X X X X : FL Tube “EDIT” lights (0 : Unlight)
1 X X X X X X X : FL Tube “TOC” lights (0 : Unlight)
Requests the system, disc and track information.
Old Format System Information 2 Code
(3)
b 7 b 6 b 5 b 4 b 3 b 2 b 1 b 0
X X X X X X 1 X : FL Tube “SINGLE” lights (0 : Continue)