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Confidential DENON BRAND COMPANY
Specification for Serial Interface DVDA1UD
Specification
for
Serial Interface DVDA1UD
DVD
VD
Ver1.06
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Confidential DENON BRAND COMPANY
Specification for Serial Interface DVDA1UD
Revision Table
Rev. Date Name Description
1.00 2007-12-20 Yamashita I make specifications of DVD-2500BT/3800BD for the cause.
1.01 2008-4-22 Yamashita I Add Search Mode.
1.02 2008-10-28 Yamashita I add Source Command.
I change Code of Search Mode Command.
A name change of HDMI Select and HDMI Format.
The deletion of the unnecessary part.
I change a model name for an official name.
1.03 2008-10-29 Yamashita I change Mode Command..
1.04 2009-03-03 Yamashita I change Mode Command..
1.05 2009-06-02 Yamashita The deletion of an unnecessary command.
1.06 2009-07-16 Yamashita I add Disc Layer Select Command.
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Confidential DENON BRAND COMPANY
Specification for Serial Interface DVDA1UD
Contents
1 COMMUNICATION INTERFACE..................................................................
................................................................
SERIAL COMMUNICATION INTERFACE.................................................................. 5
1.1 PHYSICAL INTERFACE....................................................................................................... 5
1.2 TRANSFER FORMAT OF SERIAL DATA .............................................................................. 5
1.3 COMMAND FORMAT AND ANSWER FORMAT .................................................................... 6
1.4 PROTOCOL FOR DATA TRANSMISSION AND RECEPTION ................................................. 6
1.4.1 Basic procedure .......................................................................................................... 6
1.4.2 Communication errors ............................................................................................... 7
1.5 COMMAND / ANSWER SEQUENCE ................................................................................... 8
1.6 LIST OF COMMAND CODES ............................................................................................ 12
1.7 LIST OF ANSWER CODES ................................................................................................ 13
1.8 LIST OF STATUS CODES ................................................................................................. 13
1.9 COMMAND SPECIFICATION ............................................................................................. 14
1.9.1 Power ON ................................................................................................................. 14
1.9.2 Power OFF................................................................................................................ 15
1.9.3 Request System Status ........................................................................................... 16
1.9.4 Play ............................................................................................................................ 18
1.9.5 Stop ............................................................................................................................ 19
1.9.6 Pause.......................................................................................................................... 20
1.9.7 Skip ............................................................................................................................ 21
1.9.8 Slow /Search .............................................................................................................. 22
1.9.9 Setup .......................................................................................................................... 24
1.9.10 Top Menu ............................................................................................................... 25
1.9.11 Menu........................................................................................................................ 26
1.9.12 Return ..................................................................................................................... 27
1.9.13 Audio ....................................................................................................................... 28
1.9.14 Subtitle .................................................................................................................... 29
1.9.15 Angle ....................................................................................................................... 30
1.9.16 Direct Select........................................................................................................... 31
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Specification for Serial Interface DVDA1UD
1.9.17 Cursor...................................................................................................................... 32
1.9.18 Enter........................................................................................................................ 33
1.9.19 SACD Layer Selsect ............................................................................................... 34
1.9.20 Request CPU Version ........................................................................................... 35
1.9.21 Request Error status ............................................................................................ 36
1.10 EXTENTION COMMAND SPECIFICATION ......................................................................... 37
1.10.1 OPENCLOSE ...................................................................................................... 37
1.10.2 HDMI Mode ............................................................................................................ 37
1.10.3 HDMI Resolution.................................................................................................... 38
1.10.4 PROGRAMDIRECT............................................................................................ 38
1.10.5 CLEAR .................................................................................................................... 39
1.10.6 CALL ....................................................................................................................... 39
1.10.7 DISPLAY................................................................................................................. 40
1.10.8 REPEAT .................................................................................................................. 40
1.10.9 PAGE +.................................................................................................................... 41
1.10.10 RANDOM.............................................................................................................. 41
1.10.11 MARKER .............................................................................................................. 42
1.10.12 ZOOM.................................................................................................................... 42
1.10.13 DIMMER .............................................................................................................. 43
1.10.14 PICTURE ADJUST.............................................................................................. 43
1.10.15 PURE DIRECT.................................................................................................... 44
1.10.16 AUTO TRANSFER MODE .................................................................................. 44
1.10.17 FUNCTION .......................................................................................................... 45
1.10.18 Mode...................................................................................................................... 45
1.10.19 Source ................................................................................................................... 51
1.10.20 Search Mode ......................................................................................................... 51
1.10.21 Disc Layer Select...................................................................................52
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Confidential DENON BRAND COMPANY
Specification for Serial Interface DVDA1UD
Serial communication interface
1.1 Physical interface
Arrangement of connector signals
RS-232C
Terminal # Signal I /O
1 GND -
2 TxD O
3 RxD I
4 NC -
5 S.GROUND -
6 NC -
7 NC -
8 NC -
9 NC -
1.2 Transfer format of serial data
- Interface : As per RS-232C or RS-422A
- Communication system : Half-duplex communication
- Data transfer mode : Start stop synchronization
- Transfer rate : 9,600bps
- Start bit ( ST ) : 1 bit
- Data bit ( b0-b7 ) : 8 bits
- Parity ( P ) : Even number / None Parity
(default:Even number)
- Stop bit ( SP ) : 1 bit
- Transfer data : ASCII code
- Control characters : STX (02h)
ETX (03h)
ETB (17h)
NAK (15h)
ST b0 b1 b2 b3 b4 b5 b6 b7 P SP
11 / 9600 ( sec )
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Confidential DENON BRAND COMPANY
Specification for Serial Interface DVDA1UD
1.3 Command format and answer format
This unit shall be based on commands each of which consists of a data row ( some commands
are without a PC ) composed of command codes ( CC ) and parameter codes ( PC ) . The
trans-mitting station shall be designed to send block check characters ( BCC ) following ETX,
with the data row enclosed in STX ( text start : 02h ) and ETX ( text termination : 03h ) .
The receiving station shall regard receipt of BCC as the completion of command reception when
it has received STX.
Here are the formats.
Commands : <--------->
STX (Start of TeXt) : 02h
CC (Command Code) : Command code
PC (Parameter Code) : Defined for each command
( contents and number of parameters )
ETX (End of TeXt) : 03h
BCC (Block Check Character) :
CC + PC0 + PC1 + PC2 + --------------- + PCn + ETX = XYh
(Each of X and Y is 4 bit long ) X , Y=0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F
BCCH ( high-level byte ) = X as converted to an ASCII code
BCCL ( low-level byte ) = Y as converted to an ASCII code
Answers : <-------->
STX (Start of TeXt) : 02h
RC (Reply Code) : Reply code (=Command code)
AC (Answer Code) : Answer code
PC (Parameter Code) : Defined for each command
( contents and number of parameters )
ETX (End of TeXt) : 03h
BCC (Block Check Character) :
RC +AC + PC0 + PC1 + PC2 + ------------- + PCn + ETX = XYh
(Each of X and Y is 4 bit long) X , Y=0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F
BCCH ( high-level byte ) = X as converted to an ASCII code
BCCL ( low-level byte ) = Y as converted to an ASCII code
1.4 Protocol for data transmission and reception
This unit is based on half-duplex communication. The unit shall therefore transmit commands
and receive answers according to the following procedure.
1.4.1 Basic procedure
1) The host shall select commands for this unit and transmit them to this unit. Command
interval time is MIN 40 sec.
2) Having issued a command, the host shall receive an answer from this unit, then issue the
next command.
3) The host shall analyze the RC, AC, and PC as answers given and decide whether the
command has been normally executed.
4) The host shall give an answer to a command that gives operational instructions, then
issue a status request command, and decide whether this unit has finished operating with
regard to the command that gives operational instructions.
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Specification for Serial Interface DVDA1UD
5) The time from the start of command transmission to the end of command transmission
should be max 40 msec.
6) The time from the completion of command transmission to the start of answer-back is
MAX.60 m 5sec.
7) This unit cannot receive any commands for about 5 seconds after the power switch is
turnied on.
1.4.2 Communication errors
1) Having received a command, which results in a communication error ( overrun, framing,
or parity error ) , this unit shall give NAK ( 15h ) . ( MAX 80ms from the start of
command transmission )
2) If the host has received NAK from this unit, it shall retransmit the command that it has
transmitted immediately beforehand.
3) Having received an answer, which results in a communication error ( overrun, framing, or
parity error ) , the host shall respond with NAK.
4) If it has received NAK from the host, this unit shall retransmit the answer it has
transmitted immediately beforehand. ( MAX 40ms)
5) When there is no answer from the unit within 6s, the host shall retransmit the command.
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Specification for Serial Interface DVDA1UD
1.5 Command / Answer sequence
Shown below are the command sequence and the answer sequence of this unit.
1) When a command is normally received ( unit ) and an answer is normally received
( host ) with an answer parameter
HOST UNIT
Comand Transmitted
STX
CC
MIN
40 s
PC0
PC1
PC2
MAX
40ms
PCn
ETX
Error Check OK
BCC
MAX
5s
STX
RC Answer Transmietted
AC
PC0
PC1
PCn
ETX
BCC
Error Check OK
Next Command
STX
Transmitted
CC
PC0
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Confidential DENON BRAND COMPANY
Specification for Serial Interface DVDA1UD
2) When a command is abnormally received ( with or without an answer parameter )
HOST UNIT
Command Transmitted
STX
CC
PC0
PC1
PC2
MAX
40ms MAX
100ms
PCn
ETX
Error Check NG
BCC
NAK
NAK return
Command Retransmitted
STX
CC
PC0
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Confidential DENON BRAND COMPANY
Specification for Serial Interface DVDA1UD
3) When a command with an answer parameter is normally received ( unit ) and an
answer is abnormally received ( host )
HOST UNIT
Command Transmitted
STX
CC
PC0
PC1
PC2
MAX
40ms
PCn
ETX
Error Check OK
BCC
MAX
5s
STX
RC Answer Transmitted
AC
PC0
PC1
PCn
ETX
Error Check NG
BCC
NAK
MAX
5 s
STX
RC Answer
Retransmitted
AC
PC0
PC1
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Confidential DENON BRAND COMPANY
Specification for Serial Interface DVDA1UD
4) When a command with an answer parameter is normally received ( unit ) and an
answer is normally received with ETB ( host )
HOST UNIT
Command Transmitted
STX
CC
PC0
PC1
PC2
MAX
40ms
PCn
ETX
Error Check OK
BCC
MAX
5s
STX
RC Answer Transmitted
AC
PC0
PC1
PCn
ETB
Error Check OK
BCC
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Confidential DENON BRAND COMPANY
Specification for Serial Interface DVDA1UD
1.6 List of command codes
Here is a list of command code types.
2Xh: POWER control command
3Xh: Command related to the acquisition of player information ( such as status and
name )
4Xh~5Xh: Operation instruction command to the player
61h~7Xh: Enhanced Operation instruction command to the player
No. Command Code (ASCII) Operation
1 Power ON 20h ([SP]) Power-on request from the standby state
2 Power OFF 21h (!) Power-off request
Acquires system status ( such as the entire player and
3 Request System Status 30h (0)
transfer unit ) .
4 Request CPU Version 31h (1) Acquires the CPU version.
5 Request Error Status 32h (2) Acquires the error code when an error is occurred.
6 Request Disc Status 33h (3) Disk number information is obtained.
7 Play 40h (@) Starts playback.
8 Stop 41h (A) Stops playback.
9 Pause 42h (B) Requests a pause.
10 Skip 43h (C) Moves to another group or title or chapter or track
11 Slow /Search 44h (D) Scan
12 Setup 45h (E) Common procedures of initial setting
13 Top Menu 46h (F) Playback top menu screen
14 Menu 47h (G) Playback Menu screen
15 Return 48h (H) Return
16 Audio 49h (I) Audio setting
17 Subtitle 4Ah (J) Subtitle setting
18 Angle 4Bh (K) Angle setting
19 Direct Select 4Ch (L) Music search mode
20 Cursor 4Dh (M) Moves cursor screen
21 Enter 4Eh (N) Decision
22 SACD Layer Select 4Fh (O) SACD Layer search mode
23 Disc Select 50h (P) Disc search mode
24 Disc Skip 51h (Q) Moves to another Disc
25 OPEN/CLOSE 61h (a) Disk tray open / closing
26 NTSC/PAL 62h (b) Change the video output format
27 HDMI Mode 63h (c) HDMI output mode
28 HDMI Resolution 64h (d) HDMI output format
29 PROGRAM/DIRECT 65h (e) Program mode setting
30 CLEAR 66h (f) Program Entry Track Clear
31 CALL 67h (g) Program Entry Track Call
32 DISPLAY 68h (h) Display information screen
33 REPEAT 69h (i) Repeat mode setting
34 PAGE +/- 6Ah (j) PAGE setting
35 RANDOM 6Bh (k) Random mode setting
36 MARKER 6Ch (l) Maker mode screen
37 ZOOM 6Dh (m) Zoom setting
38 DIMMER 6Eh (n) Dimmer setting
39 PICTURE ADJUST 6Fh (o) Picture menu screen
40 PURE DIRECT 70h (p) Puredirect menu screen & Puredirect setting
41 AUTO TRANSFER MODE 71h (q) Status information auto toransfer mode setting
42 FUNCTION 72h (r) I carry out a function peculiar to a disk
I perform a change of a main stream / sub stream /
43 MAIN/SUB 73h (s)
main&sub stream(picture-in-picture).
44 Mode 74h (t) I call various functions.
45 Source 7Ah (z) Change media play mode
46 Search Mode 7Bh ({) Select title/chapter/time search mode
47 Disc Layer Select 7Ch (|) Change Disc Layer Mode.
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Confidential DENON BRAND COMPANY
Specification for Serial Interface DVDA1UD
1.7 List of answer codes
No. Status Code (ASCII) Description
1 Command OK 20h (SP) Accepts the command.
2 Invalid 30h (0) Invalid command.
3 Format Error 31h (1) Inappropriate command format.
The track , the group ,the title or the chapter you
4 Order Track None 32h (2)
specified does not exist.
5 Order Time None 33h (3) The time you specified does not exist.
1.8 List of status codes
Here is a list of answer code types.
3Xh : Status of the entire system
4Xh : Status of each action mode
No. Status Code (ASCII) Description
1 Stand-by 30h (0) Stand-by
2 Disc Loading 31h (1) Under disc loading.
3 Disc Loading Complete 32h (2) Disc Loading complete.
4 Tray Opening 33h (3) Disc tray open.
5 Tray Closing 34h (4) Disc tray close.
6 No Disc 41h (A) Disc not present
7 Stop 42h (B) Stop
8 Play 43h (C) Under disc playing.
9 Pause 44h (D) Playback in process.
10 Scan Play 45h (E) Scanning in process.
11 Slow Search Play 46h (F) Slow scanning in process.
12 Setup 47h (G) Setup mode
13 Play Back Control 48h (H) Play Back Control scannig in process
14 DVD Resume Stop 49h (I) Resume stop condition
15 DVD Menu 4Ah (J) DVD menu playback in process
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Confidential DENON BRAND COMPANY
Specification for Serial Interface DVDA1UD
1.9 Command specification