INTER-M CD Player Remote Control Protocol
Model : CD-610
1. Outline
This document is remote control protocol description for using Inter-M CD player CD-610 with RS-232
port. Protocol is consist of two protocol, control signal and condition reply protocol. If control signal
protocol which is defined in this document is transferred to RS-232 port of CD-610, CD-610 is
functioned by control signal. When the status of operation is changed, CD-610 send the status reply
protocol to external controller. External control system receives this signal with showing its status on
display and confirm whether it is work properly or not. Status Reply signal protocol can be sent when any
buttons are pressed on CD player, remote controller is working, controlling with RS-232 protocol.
1 Communication Standard
Communication
Type
Baudrate
Data Bit
Stop Bit
Parity
UART(RS-232C) communication
9600 bps
8 bit
1 bit
No Parity
INTER-M Remote Control Protocol – CD Player(061012) 1/6
2 Protocol Data Structure
2.1 Control Signal Protocol
Control Signal protocol is the protocol that CD player can be controlled by External control system.
2.1.1 Protocol block structure
1 2 3 4 5
STX LEN DVID DATA CHK
약칭
STX
LEN
DVID
DATA
CHK
2.1.2 Product ID
Product Type Product ID Product Model
CD Player Type 0x10 CD-610
Name
ST ART TX
Length
Device ID
DATA
Checksum
Code
Value
0xFE
0x03
0x10
Hex
Values
Hex
Value
DATA Description
1 BYTE SENDING START BYTE
Transferring protocol length value After Length
1 BYTE
(DVID ~ CHK BYTE QTY)
1 BYTE CD Player ID
1 BYTE DATA value for operating
1 BYTE Checking RX DATA is ok or not
2.1.3 Excution Code DATA for function
DATA Function
0x01
0x02
0x03~0x0F RESERVE
0x10
0x11
0x12
0x13
0x14
INTER-M Remote Control Protocol – CD Player(061012) 2/6
POWER ON
POWER STANDBY
TENKEY ‘0’
TENKEY ‘1’
TENKEY ‘2’
TENKEY ‘3’
TENKEY ‘4’
0x15
0x16
0x17
0x18
0x19
TENKEY ‘5’
TENKEY ‘6’
TENKEY ‘7’
TENKEY ‘8’
TENKEY ‘9’
0x10~0x1F RESERVE
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
CD PLAY
CD STOP
CD PAUSE
FORWARD SEARCH START
BACKWARD SEARCH START
FORWARD SKIP START
BACKWARD SKIP START
GROUP
RANDOM
REPEAT
0x2A RESERVE
0x2B
0x2C
0x2D
0x2E
FORWARD SEARCH STOP
BACKWARD SEARCH STOP
FORWARD SKIP STOP
BACKWARD SKIP STOP
0x2F~0xFF RESERVE
2.2 Status Reply Protocol
1) It is the protocol to display operation status value of CD player on External System.
2) It is also shown on external system display when CD player’s operation is changed by
received protocol, status changed by a direct contact on CD player itself, status conditions are
changed by wireless remote controller.
INTER-M Remote Control Protocol – CD Player(061012) 3/6
2.2.1 Status Replay Protocol Block Structure
1 2 3 4 5 6 7 8
STX LEN DVID
STAT
SYS
STAT
1CD1
STAT
1CD2
STAT
CHK
1CD3
ABBV.
STX
Name
ST ART TX
Code
Vaule
0xFE
Data
Description
Length
1 BYTE Transfer Start Byte
Transferred Protocol Length Value After Length
LEN
Length
0x06
1 BYTE
(Byte no from DVID to CHK)
DVID
STAT
Device ID
STATUS
0x10
Hex
1 BYTE Product Type Id
1 BYTE Equipment Status Information
SYS
STAT
SYSTEM
STATUS
Value
Hex
1 BYTE CD Operation Status Information
CD1
STAT
CD 1
STATUS
Value
Hex
1 BYTE CD Track Info Uppe r By t e
CD2
STAT
CD 2
STATUS
Value
Hex
1 BYTE CD Track Info Bottom Byte
CD3
CD 3
Value
CHK
Checksum
Value
2.2.2 Bit Structure of Each Status info
1) STA T SYS – SYSTEM’s Status
Hex
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
- - - - - - -
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reserve
Reserve
Reserve
Reserve
Reserve
Reserve
Reserve
POWER (ON: 1, STANDBY: 0)
1 BYTE
To check Checksum data which Received Data
is correct or not
SYSPW
INTER-M Remote Control Protocol – CD Player(061012) 4/6
2) STA T CD1 – CD’s function status
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
- -
1CDGRP 1CDRND 1CDRPT 1CDPAU 1CDPS
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reserve
Reserve
GROUP ON/OFF (ON: 1, OFF: 0)
RANDOM ON/OFF (ON: 1, OFF: 0)
CD REPEAT
(OFF: 00b, REPEAT 1: 01b, REPEAT ALL: 10b)
CD PAUSE (PAUSE: 1, RESUME: 0)
CD PLAY/STOP (PL AY: 1, STOP: 0)
3) STAT CD2 – Track info Upper Bit
Playing CD track info, selected track no, Total track no’s upper bit
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
- - - - - -
1CDTRH7~0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Reserve
Reserve
Reserve
Reserve
Reserve
Reserve
Bit 1
upper bit for displaying 0~99 9
Bit 0
INTER-M Remote Control Protocol – CD Player(061012) 5/6
4) STAT CD3 – Track Info under Bit
Playing CD track No., Selected Track No., Total Track no.’s under bit
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
1CDTRL7~0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bottom Byte for Showing 0~999
When CD is status of “PLAY”
- Inform Track No Value
When CD is status of “STOP”
- Inform T otal Track No Value
When CD is status of “ Select”
- Inform Selected No
2.3 CHECKSUM Definition
1) Calculation Range: All code value, except for CHK
2) Calculation: add(+) all Code value of the range .
3) Ex) To Calculate “Checksum” When External controller send “Power on” protocol to CD-
610
A. Code V al ue
1 BYTE 2 BYTE 3 BYTE 4 BYTE 5 BYTE
STX LEN DVID DATA CHK
0xFE 0x03 0x10 0x01
0x12
B. Calculation Method
Operator: “ + ”
checksum = STX + LEN + DVID + DATA
= 0xFE + 0x03 + 0x10 + 0x01
= 0x12
INTER-M Remote Control Protocol – CD Player(061012) 6/6
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