Denon DVD5910 User Manual

Ver 1.00

Date : Oct.10.2003 1 page of 33

Specification

For

Serial Interface DVD-5

900

DENON, Ltd.

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Date : Oct.10.2003 2 page of 33

Contents

SERIAL COMMUNICATION INTERFACE..................................................... 3

1.1 PHYSICAL INTERFACE .....................................................................................................3

1.2 TRANSFER FORMAT OF SERIAL DATA................................ ..............................................3

1.3 COMMAND FORMAT AND ANSWER FORMAT.....................................................................4

1.4 PROTOCOL FOR DATA TRANSMISSION AND RECEPTION...................................................4

1.4.1 Basic procedure........................................................................................................4

1.4.2 Communication errors................................ ..............................................................5

1.5 COMMAND / ANSWER SEQUENCE ..................................................................................6

1.6 LIST OF COMMAND CODES ...........................................................................................10

1.7 LIST OF ANSWER CODES ..............................................................................................11

1.8 LIST OF STATUS CODES................................ ................................................................ 11

1.9 COMMAND SPECIFICATION ................................ ............................................................ 12

1.9.1 Power ON ..............................................................................................................12

1.9.2 Power OFF................................ ............................................................................ 13

1.9.3 Request System Status ..........................................................................................14

1.9.4 Play................................ ........................................................................................ 17

1.9.5 Stop................................ ........................................................................................ 18

1.9.6 Pause......................................................................................................................19

1.9.7 Skip................................ ........................................................................................ 20

1.9.8 Slow /Search ...........................................................................................................21

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

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

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1 Serial Communication Interface

1.1 Physical Interface

Arrangement of connector signals

RS-232C

Terminal #

1 GND 2 TxD O 3 RxD I 4 NC 5 S.GROUND 6 NC 7 NC 8 NC 9 NC -

Signal I /O

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

- Stop bit ( SP ) : 1 bit

- Transfer data : ASCII code

- Control characters : STX (02h) ETX (03h) ETB (17h) NAK (15h) ACK (06h)

ST SPb0 b1 b2 b3 b4 b5 b6 b7 P

11 / 9600 ( sec )

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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 transmitting 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> <CC> <PC0> <PC1> <PC2> <---------> <PCn> <ETX> <BCCH> <BCCL>

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> <RC> <AC> <PC0> <PC1> <PC2> <--------> <PCn> <ETX> <BCCH> <BCCL>

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

The host shall select commands for this unit and transmit them to this unit. Command

1)

interval time is MIN 40µsec.

Having issued a command, the host shall receive an answer from this unit, then issue

2)

the next command.

The host shall analyze the RC, AC, and PC as answers given and decide whether the

3)

command has been normally executed.

The host shall give an answer to a command that gives operational instructions, then

4)

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issue a status request command, and decide whether this unit has finished operating with regard to the command that gives operational instructions.

The time from the start of command transmission to the end of command transmission

5)

should be max 40 msec.

The time from the completion of command transmission to the start of answer -back is

6)

MAX. 5 sec.

This unit cannot receive any commands for about 5 seconds after the power switch is

7)

turned on.

1.4.2 Communication Errors

Having rece ived a command, which results in a communication error ( overrun, framing,

1)

or parity error ) , this unit shall give NAK ( 15h ) . ( MAX 80ms from the start of command transmission )

If the host has received NAK from this unit, it shall retransmit the command that it has

2)

transmitted immediately beforehand.

Having received an answer, which results in a communication error ( overrun, framing, or

3)

parity error ) , the host shall respond with NAK.

If it has received NAK from the host, this unit shall retransmit the answer it has

4)

transmitted immediately beforehand. ( MAX 40ms)

When there is no answer from the unit within 6s, the host shall retransmit the

5)

command.

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1.5 Command / Answer Sequence

Shown below are the command sequence and the answer sequence of this unit.

When a command is normally received ( unit ) and an answer is normally received

1)

( host ) with an answer parameter

Command

MAX

40ms

HOST

STX

CC PC0 PC1 PC2

PCn ETX

BCC

UNIT

MIN 40 µ s

Error Check OK

Next Command

Transmitted

MAX

5s

STX

AC PC0 PC1

PCn ETX

BCC

STX

CC PC0

Answer Transmitted

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When a command is abnormally received ( with or without an answer parameter )

2)

Command Transmitted

MAX

40ms

HOST

STX

PC0 PC1 PC2

UNIT

MAX 100ms

PCn ETX

Command Retransmitted

BCC

NAK

STX

CC

PC0

Error Check NG

NAK return

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AC

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When a command with an answer parameter is normally received ( unit ) and an

3)

answer is abnormally received ( host )

Command Transmitted

MAX

40ms

HOST

STX

PC0 PC1 PC2

PCn ETX

BCC

STX

RC

AC PC0 PC1

UNIT

Error Check OK

MAX

5s

Answer Transmitted

Error Check NG

PCn ETX

BCC

NAK

STX

PC0 PC1

Retransmitted

Answer

MAX

6 0ms

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When a command with an answer parameter is normally received ( unit ) and an

4)

answer is normally received with ETB ( host )

Command Transmitted

MAX

40ms

HOST UNIT

STX

CC PC0 PC1 PC2

PCn ETX

BCC

Error Check OK

MAX 5s

STX

RC

AC PC0

PC1

Answer Transmitted

Error Check OK

MAX

40ms

Next command transmitted

PCn ETB

BCC

ACK

STX

RC

AC PC0 PC1

PCn ETX

BCC

MAX 5s

Continuous Answer

Transmitted

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Date : Oct.10.2003 10 page of 33

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 : Operation instruction command to the player

No.

1 Power ON 20h ([SP]) Power-on request from the standby state 2 Power OFF 21h (!) Power-off request

3 Request Play Status 30h (0) 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 Play 40h (@) Starts playback. 7 Stop 41h (A) Stops playback. 8 Pause 42h (B) Requests a pause.

9 Skip 43h (C) Moves to another group or title or chapter or track 10 Slow /Search 44h (D) Scan 11 Setup 45h (E) Common procedures of initial setting 12 Top Menu 46h (F) Playback top menu screen 13 Menu 47h (G) Playback Menu screen 14 Return 48h (H) Return 15 Audio 49h (I) Audio setting 16 Subtitle 4Ah (J) Subtitle setting 17 Angle 4Bh (K) Angle setting 18 Direct Select 4Ch (L) Music search mode 19 Cursor 4Dh (M) Moves cursor screen 20 Enter 4Eh (N) Decision 21 SACD Layer Select 4Fh (O) SACD Layer search mode

Command Code (ASCII

Operation

and transfer unit ) .

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1.7 List of answer codes

No.

1 Command OK 20h (SP) Accepts the command.

2 Invalid 30h (0) Invalid command.

3 Format Error 31h (1) Inappropriate command format.

4 Order Track None 32h (2)

5 Order Time None 33h (3) The time you specified does not exist.

6 Play Error 34h (4) An error occurred during playback.

7 Communication Error 35h (5) Communication error between the parent and child unit.

Status Code (ASCII

Description

The track , the group ,the title or the chapter 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.

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 scanning in process 14 DVD Resume Stop 49h (I) Resume stop condition 15 DVD Menu 4Ah (J) DVD menu playback in process

Digital Inter

16

Mode (DAC MODE)

Status Code (ASCII

4Bh (K) Under DAC Mode

Description