Teac CD-RW901SL Specification

TASCAM CD-RW901

CONTROL I/O connector

RS-232C Protocol Specification

Ver.1.00

August 2006

TEAC Corporation

TASCAM CD-RW901 RS-232C Protocol Specification

1 TEAC Corporation

1. Overview

The CD-RW901's REMOTE connector can be used to control the CD-RW901 from a computer or
other external device. In this document, the CD-RW901 is referred to as the "controlled device,"
and the external device that controls it is referred to as the "external controller."

2. Specifications

2.1. Electrical specifications

Conforms to standard JIS X-5101 (equivalent to former JIS C-6361 and EIA RS-232C)
(Not compatible with the RS-422A used in professional VTR units)
Impedance at receiver When measured with an applied voltage of between ±3 and 15V, the DC

resistance is between 3KΩ and 7KΩ.
Total load capacitance is less than 2500pF
Open circuit voltage at transmitter Less than 25V
Open circuit voltage at receiver Less than 2V
Signal voltage When the open circuit voltage at the receiver is 0V, the signal voltage is

between ±5V and ±15V for a load impedance of between 3K and 7KΩ.
Signal discrimination Logical “1” Less than -3V
Logical “0” More than +3V

2.2. Communication format

Circuit type 3-wire, half-duplex
Transmission type Digital binary serial
Data speed (baud rate) 4800/9600/19200/38400 bit/sec
Character length 7/8 bit
Parity bit Odd/Even/None
Stop bit 1/2 bit
(Data speed, character length, parity bit, and stop bit settings are made on the CD-RW901.)

2.3. Connector pin-out

Connector D-sub 9-pin female (metric thread)

Terminal pin-out and input/output signals

Pin no. In/Out Signal name Description

1 - NC Not connected
2 In Rx Data Data received at this pin *1
3 Out Tx Data Data transmitted from this pin
4 Out (Reserved) Reserved
5 - GND Ground
6 In (Reserved) Reserved
7 Out RTS Request To Send (output "request to transmit") *2
8 In CTS Clear To Send (input "ready to receive") *2

9 - NC Not connected
*1： A voltage that satisfies the RS-232C specification must be applied to Rx Data.
*2： RTS/CTS is loopback-connected within the controlled device. If using RTS/CTS control,
consider the design of the external controller.

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2

3

5

RXD
TXD

RTS
CTS
GND

RXD
TXD

RTS
CTS
GND

7

8

Controlled device (CD-RW901) External controller

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3. Command format

3.1. Command format overview
The command format is as follows.

Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 … Byte n

LF ID Command Data 1 Data 2 Data 3 Data 4 … CR

Commands begin with a "line feed (LF)," end with a "carriage return (CR)," and are based on the ASCII
format.
The type following the LF is the machine ID. The machine ID is described later.
Commands are expressed by two ASCII bytes.
The byte string following the command expresses the data, and is between 0 bytes (for a command that
has no data) and a maximum of 98 bytes. For details on the data, refer to the detailed explanation for
each command. For commands that use 0--9 and A--F as data values, uppercase characters are used
for A--F.

Example commands
Example 1: Transmitting a PLAY command to a controlled device of ID=0

When the controlled device is in Stop or Ready mode, this command will initiate playback on the
controlled device.
The PLAY command is [12], and is transmitted as follows.

ID Command

ASCII LF 0 1 2 CR

HEX 0Ah 30h 31h 32h 0Dh

Example 2: Telling a controlled device of ID=0 to perform a direct search for track 123

The command "DIRECT TRACK SEARCH PRESET [23]" is transmitted to perform this action.
The data bytes consist of ASCII in two-byte units.
For the "DIRECT TRACK SEARCH PRESET" command, the track number is specified as
follows.

Data 1 Tens digit of the specified track number
Data 2 Ones digit of the specified track number
Data 3 Thousands digit of the specified track number
Data 4 Hundreds digit of the specified track number

Thus, the transmitted command will be as follows.

ID Command Data：track 123

ASCII LF 0 2 3 2 3 0 1 CR

HEX 0Ah 30h 32h 33h 32h 33h 30h 31h 0Dh

Example 3: Writing a title to track 23 of a controlled device whose ID=0

The command "TEXT PRESET [29]" is transmitted to perform this action.
This command allows up to eighty single-byte characters to be transmitted.
For example, the command to write a title "Test" would be as follows.

ID Command Track 23 Title： Tes t

ASCII LF 0 2 9 2 3 0 1 T e s t CR

HEX 0Ah 30h 32h 39h 32h 33h 30h 30h 54h 65h 73h 74h 0Dh

3.2. Machine ID
The CD-RW901 uses Machine ID=0 to receive commands and transmit returns.
Commands and returns using Machine ID=0 also exist, and these operations are described within this
document.
If a command with an ID other than Machine ID=0 is received, that command is ignored.

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If an unsupported command is received, the CD-RW901 will transmit ILLEGAL [F2].

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3.3. List of commands

A list of commands is given below.

Control/Preset/Sense Command Return Command
0F INFORMATION REQUEST 8F INFORMATION RETURN

10 STOP
12 PLAY
13 RECORD
14 READY
16 SHUTTLE

18 TRAY
1A TRACK/INDEX SKIP
1D CALL

20 AUTO CUE LEVEL PRESET A0 AUTO CUE LEVEL RETURN

21 AUTO TRACK LEVEL PRESET A1 AUTO TRACK LEVEL RETURN

23 DIRECT TRACK SEARCH PRESET

25 PITCH DATA PRESET A5 PITCH DATA RETURN

26 AUTO TRACK TIME PRESET A6 AUTO TRACK TIME RETURN

28 SYNC REC LEVEL PRESET A8 SYNC REC LEVEL RETURN

29 TEXT PRESET A9 TEXT PRESET ACKNOWLEDGE
2C TIME SEARCH PRESET
2D KEY CONTROL DATA PRESET AD KEY CONTROL DATA RETURN
2E FADE IN/OUT TIME PRESET AE FADE IN/OUT TIME RETURN
2F DIGITAL VOLUME DATA PRESET AF DIGITAL VOLUME DATA RETURN

30 AUTO CUE SELECT B0 AUTO CUE SELECT RETURN

31 AUTO TRACK SELECT B1 AUTO TRACK RETURN

32 EOM TRACK TIME SELECT B2 EOM TRACK TIME RETURN

33 EOM DISC TIME SELECT B3 EOM DISC TIME RETURN

35 PITCH CONTROL SELECT B5 PITCH CONTROL SELECT RETURN

36 AUTO READY SELECT B6 AUTO READY SELECT RETURN

37 REPEAT SELECT B7 REPEAT SELECT RETURN

38 SYNC REC SELECT B8 SYNC REC SELECT RETURN
3A INCR PLAY SELECT BA INCR PLAY SELECT RETURN
3D KEY CONTROL SELECT BD KEY CONTROL SELECT RETURN
4C REMOTE/LOCAL SELECT CC REMOTE/LOCAL SELECT RETURN
4E PLAY MODE SENSE CE PLAY MODE RETURN

50 MECHA STATUS SENSE D0 MECHA STATUS RETURN

53 ISRC SENSE D3 ISRC RETURN

55 TRACK No. SENSE D5 TRACK No. STATUS RETURN

56 DISC STATUS SENSE D6 DISC STATUS RETURN

57 CURRENT TRACK INFORMATION

SENSE

D7 CURRENT TRACK INFORMATION

RETURN
58 CURRENT TRACK TIME SENSE D8 CURRENT TRACK TIME RETURN
59 TEXT SENSE D9 TEXT RETURN

5D TOTAL TRACK No./TOTAL TIME SENSE DD TOTAL TRACK No./TOTAL TIME

RETURN

5E PGM TOTAL TRACK No./TOTAL TIME

SENSE

DE PGM TOTAL TRACK No./TOTAL TIME

RETURN

5F KEYBOARD TYPE SENSE DF KEYBOARD TYPE RETURN

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F0 ERROR SENSE REQUEST
F1 CAUTION SENSE REQUEST
F2 ILLEGAL STATUS
F4 POWER ON STATUS

F6 CHANGE STATUS
78 ERROR SENSE F8 ERROR SENSE RETURN
79 CAUTION SENSE F9 CAUTION SENSE RETURN

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3.4. Command sequence

In most cases the controlled device will not send an ACK in response to transport control or data preset
commands sent from the external controller.
The controlled device will send back a return command in response to data sense commands that
request a data value specified on the controlled device.
When the status of the controlled device changes, such as from Stop to Play mode, or when an error etc.
occurs, the controlled device will send a command indicating this to the external controller.
Examples of the command sequence are given below.
You must leave an interval of at least 20 ms between commands.

Example 1: Controlling the transport of the controlled device

This example describes the Play operation.
When the controlled device receives the PLAY command and enters Play mode, it will transmit
a CHANGED STATUS command.
ACK is not transmitted for the PLAY command.

Command

External controller Controlled device

State of controlled device

Stopped
PLAY ->
<- CHANGED STATUS Transmit when starting Play

Example 2: Presetting data

This example describes setting the AUTO CUE LEVEL.
When the controlled device receives the AUTO CUE LEVEL PRESET (Preset) command, it will
set its AUTO CUE LEVEL.
ACK is not transmitted for this command.

Command

External controller Controlled device

State of controlled device

AUTO CUE LEVEL
PRESET (Preset -54dB)

->

AUTO CUE LEVEL set to

-54dB

Example 3: Obtaining specified data

This example describes obtaining the currently-set AUTO CUE LEVEL.
When the controlled device receives the AUTO CUE LEVEL PRESET (Sense) command, it will
return the currently-set AUTO CUE LEVEL.

Command

External controller Controlled device

State of controlled device

AUTO CUE LEVEL
PRESET (Sense)

->

<-

AUTO CUE LEVEL
RETURN

Example 4: Checking the status of the controlled device, and performing the next operation

When the operating status of the controlled device changes, it will transmit CHANGED
STATUS. By using CHANGED STATUS as a trigger for sending MECHA STATUS SENSE, the
new operating status can be determined.
This example shows how to check the record-ready status of the controlled device and then
initiate recording..

Command

External controller Controlled device

State of controlled device

Stopped
RECORD (Record Ready) ->

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<-

CHANGED STATUS Transmitted when entering

record-ready status

MECHA STATUS SENSE ->

<-

MECHA STATUS
RETURN

Returns record-ready status

RECORD (Record) ->

<-

CHANGES STATUS Transmitted when entering

record status

3.5. Command details

The commands, data, and machine IDs described here are characters (ASCII).
A command is two character bytes, a machine ID is one character byte, and each item of data is an
individual character byte.
The CD-RW901 can use the following track numbers and group numbers. However if a number not
existing on the disc is specified, it will be considered an invalid command.

Track number (audio CD) maximum 99
Track number (MP3 CD) maximum 999

INFORMATION REQUEST

Requests the controlled device to return information such as the software version.
Command 0F
Machine ID 0
Data none
Return INFORMATION RETURN [8F]

STOP

Puts the controlled device in STOP mode, and defeats input monitor mode.
Command 10
Machine ID 0
Data none
Return none

PLAY

Puts the controlled device in PLAY mode, or in RECORD mode if it is in record-ready mode.
Command 12
Machine ID 0
Data none
Return none

RECORD

Puts the controlled device in RECORD-READY mode. If it is currently recording, assigns a track. If
the state is currently No Disc, puts the controlled device in Input Monitor mode.
Command 13
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 1 Record Ready Puts the device in record-ready mode.
0 2 Track Mark Assigns a track during recording.
0 3 Input Monitor Puts the device in Input Monitor mode while stopped.

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return none

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READY

Puts the controlled device in PLAY-READY mode or RECORD-READY mode.
Command 14
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 invalid The command will be ignored in the case of this data.

ILLEGAL will not be transmitted.

0 1 Ready On

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return none

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SHUTTLE

Puts the controlled device in SHUTTLE mode.
SHUTTLE mode will be maintained until a command such as STOP, PLAY, or READY is received.
Command 16
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Shuttle

Forward

Shuttles in the forward direction.

0 1 Shuttle

Reverse

Shuttles in the backward direction.

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return none

TRAY

Opens or closes the tray of the controlled device.
Command 18
Machine ID 0
Data none
Return none

SKIP

Causes the controlled device to skip tracks.
After skipping, the device will maintain the mode in which it was when the operation began.
Command 1A
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Track Skip Next Skips to the next track.
0 1 Track Skip

Previous

If the current position is at the beginning of a track,
skips to the beginning of the previous track. If the
current position is not at the beginning of a track, skips

to the beginning of the current track..
1 0 Index Skip Next Skips to the next index.
1 1 Index Skip

Previous

If the current position is index 2 or higher, skips to the

beginning of the previous index.

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return none

CALL

Causes the controlled device to locate to the call point and enter playback-ready mode.
Command 1D
Machine ID 0
Data none
Return none

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AUTO CUE LEVEL PRESET

Sets the Auto Cue Level of the controlled device.
A return command is returned only if Sense [FF] is specified.
The Auto Cue Mode setting is made using the command "AUTO CUE SELECT [30]."
Command 20
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Preset –24dB
0 1 Preset –30dB
0 2 Preset –36dB
0 3 Preset –42dB
0 4 Preset –48dB
0 5 Preset –54dB
0 6 Preset –60dB
0 7 Preset –66dB
0 8 Preset –72dB
F F Sense Requests that the current preset level be returned.

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return AUTO CUE LEVEL RETURN [A0]

AUTO TRACK LEVEL PRESET

Sets the Auto Track Level of the controlled device.
A return command is returned only if Sense [FF] is specified.
The Auto Track Mode setting is made using the command "AUTO TRACK SELECT [31]."
Command 21
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Preset –24dB
0 1 Preset –30dB
0 2 Preset –36dB
0 3 Preset –42dB
0 4 Preset –48dB
0 5 Preset –54dB
0 6 Preset –60dB
0 7 Preset –66dB
0 8 Preset –72dB
F F Sense Requests that the current preset level be returned.

・ If data other than the above is returned, the CD-RW901 will transmit ILLEGAL [F2].

Return AUTO TRACK LEVEL RETURN [A1]

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DIRECT TRACK SEARCH PRESET

Searches for the specified track number.
When this command is received while in STOP mode or PLAY mode, the controlled device will enter
PLAY mode after searching. If the controlled device had been in any other mode when searching
began, it will remain in that mode after searching.
Command 23
Machine ID 0
Data 4 bytes

Description Remarks
Data 1 Tens digit of the

track number

Data 2 Ones digit of the

track number

Data 3 Thousands digit of

the track number

Data 4 Hundreds digit of

the track number

Track number

Example) 2301: track 123

・ If the specified track number does not exist on the disc, the CD-RW901 will transmit ILLEGAL

[F2].

Return none

PITCH CONTROL DATA PRESET

Specifies the playback pitch of the controlled device in % units.
The adjustable range is ±16.0%.
This can be set independently of the step that is specified by the CD-RW901's PITCH STEP? setting.
A return command is returned only if Sense [FF] is specified..
If Sense [FF] is specified, the data is two bytes.
The pitch control mode setting is made by the command "PITCH CONTROL SELECT [35]."
Command 25
Machine ID 0
Data 4 bytes or 2 bytes

Data 1 Data 2 Data 3 Data 4 Description Remarks

0 1 Positive value

Negative value

N2 N3 N1

Preset %

N1：Tens d i g it, N 2 ： Ones digit, N3：First decimal
place

Example) 2311：-12.3%

F F … Sense Requests that the currently preset pitch be

returned.

・ If data other than the above or data outside the specified operating range is received, the

CD-RW901 will transmit ILLEGAL [F2].

Return PITCH DATA RETURN [A5]

AUTO TRACK TIME PRESET

Specifies the Auto Track Time setting of the controlled device.
The range that can be specified is 1 to 10 minutes.
A return command is returned only if Sense [FF] is specified.
The Auto Track Mode setting is made by the command "AUTO TRACK SELECT [31]."
Command 26
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

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N1 N2 Minutes N1： Tens digit of minutes, N2： Ones digit of minutes

F F Sense Requests that the currently preset time be returned.

・ If data outside the specified range is received, the controlled device will return ILLEGAL[F2].

Return AUTO TRACK TIME RETURN [A6]

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SYNC REC LEVEL PRESET

Sets the Sync Rec Level of the controlled device.
A return command is returned only if Sense [FF] is specified.
The SYNC REC MODE setting is made by the command "SYNC REC SELECT [38]."
Command 28
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Preset –24dB
0 1 Preset –30dB
0 2 Preset –36dB
0 3 Preset –42dB
0 4 Preset –48dB
0 5 Preset –54dB
0 6 Preset –60dB
0 7 Preset –66dB
0 8 Preset –72dB
F F Sense Requests that the currently preset level be returned.

・ If data outside the above range is received, the CD-RW901 will return ILLEGAL [F2].

Return SYNC REC LEVEL RETURN [A8]

TEXT PRESET

Specifies a title for the controlled device of up to 80 single-byte alphabetical or katakana characters.
To obtain the assigned title, transmit the command "TITLE SENSE [59]."
Command 29
Machine ID 0
Data 4 bytes～84 Bytes

Description Remarks
Data 1 Tens digit of

specified number

Data 2 Ones digit of

specified number

Data 3 Thousands digit of

specified number

Data 4 Hundreds digit of

specified number

0000
0001 – 0099

Specify the disc title
Specify a track title

Data 5 – Data
84

Title Single-byte alphanumeric characters

・ If a track number not existing on the disc is specified, the CD-RW901 will transmit ILLEGAL

[F2].

・ The title is between 0 bytes and 80 bytes. The characters up to the last one before CR will be

used as the specified title.

Return TEXT PRESET ACKNOWLEDGE [A9]

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TIME SEARCH PRESET

Searches for the specified track number and time.
If this command is received while in STOP mode or PLAY mode, the device will enter PLAY mode
following the search. If the device was in any other mode, it will remain in that mode following the
search.
Command 2C
Machine ID 0
Data 12 bytes

Description Remarks
Data 1 Tens digit of track

number

Data 2 Ones digit of track

number

Data 3 Thousands digit of

track number

Data 4 Hundreds digit of

track number

Data 5 Tens digit of

minutes

Data 6 Ones digit of

minutes

Data 7 Hundreds digit of

minutes

Data 8 Thousands digit of

minutes

Data 9 Tens digit of

seconds

Data 10 Ones digit of

seconds
Data 11 0 Set to 0
Data 12 0 Set to 0
・ If a track number not existing on the disc is specified, the CD-RW901 will transmit ILLEGAL

[F2].

・ If data outside the operating range is received, the CD-RW901 will transmit ILLEGAL [F2].

Return none

KEY CONTROL DATA PRESET

Specifies the playback key of controlled device.
A range of ±6 semitones can be specified.
A return command is returned only if Sense [FF] is specified.
The KEY CONTROL MODE setting is made using the command "KEY CONTROL SELECT [3D]."
Command 2D
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0
1

Key Up

Key Down

0 – 6 Key Change Semitone units

F F Sense Requests that the preset content be returned.

・ If data outside the operating range is received, the CD-RW901 will transmit ILLEGAL [F2].

Return KEY CONTROL DATA RETURN [AD]

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FADE IN/OUT TIME PRESET

Specifies the fade-in/out time used for the fade-in/out recording function of the controlled device.
A range of 1 to 30 seconds can be specified.
A return command is returned only if Sense [FF] is specified.
If Sense [FF] is specified, the data is two bytes.
Command 2E
Machine ID 0
Data 4 bytes or 2 bytes

Data 1 Data 2 Data 3 Data 4 Description Remarks

0 0 1 IN Time

OUT Time

N1 N2 Preset Time N1：Te n s digit , N2： Ones digit

F F … Sense Requests that the preset content be returned.

・ If data outside the specified operating range is received, the controlled device will transmit

ILLEGAL[F2].

Return FADE IN/OUT TIME RETURN [AE]

DIGITAL VOLUME DATA PRESET

Specifies the digital volume of the controlled device.
The range that can be set is -54dB～+18dB and -∞dB.
You can set the -54.0dB～-24.0dB range is 6.0dB steps, the -24.0dB～-12.0dB range in 4.0dB steps,
the -12.0dB～-6.0dB range is 2.0dB steps, the -6.0dB～+6.0dB range in 0.5dB steps, and the +6.0dB
～+18.0dB range in 1.0dB steps.
A return command is returned only if Sense [FF] is specified.
If Sense [FF] is specified, the data is two bytes.
Command 2F
Machine ID 0
Data 4 bytes or 2 bytes

Data 1 Data 2 Data 3 Data 4 Description Remarks

0 1 Positive value

Negative value

N2 N3 N1

Preset Level

N1 ： Tens digit, N2： Ones digit, N3： First
decimal place

Example) 6011: -16.0dB
A A A A Preset -∞dB
F F … Sense Requests that the preset content be returned

・ If data outside the specified operating range is received, the controlled device will transmit

ILLEGAL[F2]

Return DIGITAL VOLUME DATA RETURN [AF]

AUTO CUE SELECT

Specifies the auto cue mode setting of the controlled device.
A return command is returned only if Sense [FF] is specified.
The AUTO CUE LEVEL setting is made by the command "AUTO CUE LEVEL PRESET [20]."
Command 30
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Auto Cue Off
0 1 Auto Cue On
F F Sense Requests that the preset content be returned.

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・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return AUTO CUE SELECT RETURN [B0]

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AUTO TRACK SELECT

Specifies the auto track mode of the controlled device.
A return command is returned only if Sense [FF] is specified.
Command 31
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Auto Track Off
0 1 Auto Track On

(Level)

Executes auto track according to the specified AUTO
TRACK LEVEL.

0 2 Auto Track On

(Digital
Direct)

Executes auto track according to the track data within the
S/P DIF signal.

0 3 Auto Track On

(Time)

Executes auto track according to the specified AUTO
TRACK TIME.

F F Sense Requests that the preset content be returned.

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return AUTO TRACK RETURN [B1]

EOM TRACK TIME PRESET

Specifies the time (in seconds) at which the tally signal will be output by the EOM (End Of Message)
function which outputs a tally signal when the track nears its end.
The range is 1 to 99 seconds, or OFF.
A return command is returned only if data [FF] is specified.
Command 32
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 EOM Track

Off

N1 N2 Number of

seconds

N1：Tens digit of seconds, N2： Ones digit of seconds

F F Sense Requests that the preset content be returned.

・ If data outside the range specified above is received, the controlled device will transmit

ILLEGAL[F2].

Return EOM TRACK TIME RETURN [B2]

EOM DISC TIME PRESET

Specifies the time (in seconds) at which the tally signal will be output by the EOM (End Of Message)
function which outputs a tally signal when the disc nears its end.
The range is 1 to 99 seconds, or OFF.
A return command is returned only if data [FF] is specified.
Command 33
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 EOM Disc Off

N1 N2 Number of

seconds

N1： Tens digit of seconds, N2： Ones digit of seconds

F F Sense Requests that the preset content be returned.

・ If data outside the range specified above is received, the controlled device will transmit

ILLEGAL[F2].

Return EOM DISK TIME RETURN [B3]

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PITCH CONTROL SELECT

Specifies the Pitch Control mode of the controlled device.
A return command is returned only if Sens [FF] is specified.
The pitch control value is specified by the command "PITCH CONTROL DATA PRESET [25]."
Command 35
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Pitch Control Off
0 1 Pitch Control On
F F Sense Requests that the preset content be returned.

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return PITCH CONTROL SELECT RETURN [B5]

AUTO READY SELECT

Specifies the Auto Ready mode setting of the controlled device.
A return command is returned only if Sense [FF] is specified.
Command 36
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Auto Ready

Off

0 1 Auto Ready

On

F F Sense Requests that the preset content be returned.

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return AUTO READY SELECT RETURN [B6]

REPEAT SELECT

Specifies the Repeat Mode setting of the controlled device.
A return command is returned only if Sense [FF] is specified.
Command 37
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Repeat Off
0 1 Repeat On
F F Sense Requests that the preset content be returned.

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return REPEAT SELECT RETURN [B7]

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SYNC REC SELECT

Specifies the Sync Rec Mode setting of the controlled device.
A return command is returned only if Sense [FF] is specified.
The Sync Rec Level is specified by the command "SYNC REC LEVEL PRESET [28]."
Command 38
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Sync Rec Off
0 1 Sync Rec On
F F Sense Requests that the preset content be returned.

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return SYNC REC SELECT RETURN [B8]

INCR PLAY SELECT

Specifies the Incremental Play Mode of the controlled device.
A return command is returned only if Sense [FF] is specified.
Command 3A
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 INCR Play Off
0 1 INCR Play On
F F Sense Requests that the preset content be returned.

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return INCR PLAY SELECT RETURN [BA]

KEY CONTROL SELECT

Specifies the Key Control Mode of the controlled device.
A return command is returned only if Sense [FF] is specified.
The key control value is set by the command "KEY CONTROL DATA PRESET [2D]."
Command 3D
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Key Control

Off

0 1 Key Control

On

F F Sense Requests that the preset content be returned.

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return KEY CONTROL SELECT RETURN [BD]

TASCAM MD-CD1 RS-232C Protocol Specification

22 TEAC Corporation

REMOTE/LOCAL SELECT

Enables or disables key operations on the controlled device's own panel.
A return command is returned only if Sense [FF] is specified.
Command 4C
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Remote Only remote operation via RS-232C and wired remote

control will be enabled. Key operations on the device's own
panel will be disabled.

0 1 Local Remote operation and key operations on the device's own

panel will be enabled.

F F Sense Requests that the preset content be returned.

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return REMOTE/LOCAL SELECT RETURN [CC]

PLAY MODE SENSE

Requests that the status of the controlled device's Play mode be returned.
Command 4E
Machine ID 0
Data none
Return PLAY MODE RETURN [CE]

MECHA STATUS SENSE

Requests that the status of the controlled device's mechanism be returned.
Command 50
Machine ID 0
Data none
Return MECHA STATUS RETURN [D0]

ISRC SENSE

Requests that the ISRC of the current track be returned.
Command 53
Machine ID 0
Data none
Return ISRC RETURN [D3]

TRACK No. SENSE

Requests that the current track number be returned.
Command 55
Machine ID 0
Data none
Return TRACK No. RETURN [D5]

DISC STATUS SENSE

Requests that the presence or absence of a disc and the type of disc be returned.
Command 56
Machine ID 0
Data none
Return DISC STATUS RETURN [D6]

TASCAM MD-CD1 RS-232C Protocol Specification

23 TEAC Corporation

CURRENT TRACK INFORMATION SENSE

Requests that information for the current track be returned.
Command 57
Machine ID 0
Data none
Return CURRENT TRACK INFORMATION RETURN [D7]

CURRENT TRACK TIME SENSE

Requests that the time information for the current track be returned in the specified form.
Command 58
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Elapsed Time Elapsed track time
0 1 Remain Time Remaining track time
0 2 Total Elapsed

Time

Elapsed disc time

0 3 Total Remain

Time

Remaining disc time

・ If data other than the above is received, the CD-RW901 will transmit ILLEGAL [F2].

Return CURRENT TRACK TIME RETURN [D8]

TEXT SENSE

Requests that the title of the disc or of the specified track be returned.
Command 59
Machine ID 0
Data 4 bytes

Description Remarks
Data 1 Tens digit of the

specified number

Data 2 Ones digit of the

specified number

Data 3 Thousands digit of

the specified
number

Data 4 Hundreds digit of

the specified
number

0000
0001 – 0999

Specify the disc title
Specify a track title

Data 5 – Data
84

Title Single byte alphanumeric characters

・ If a track number not existing on the disc is specified, the CD-RW901 will transmit ILLEGAL

[F2].

Return TEXT RETURN [D9]

TOTAL TRACK No./TOTAL TIME SENSE

Requests that the total number of tracks on the disc and the total time be returned.
Command 5D
Machine ID 0
Data none
Return TOTAL TRACK No./TOTAL TIME RETURN [DD]

PGM TOTAL TRACK No./TOTAL TIME SENSE

Requests that the total number of tracks for program playback and the total time be returned.

TASCAM MD-CD1 RS-232C Protocol Specification

24 TEAC Corporation

Command 5E
Machine ID 0
Data none
Return PGM TOTAL TRACK No./TOTAL TIME RETURN [DE]

TASCAM MD-CD1 RS-232C Protocol Specification

25 TEAC Corporation

KEYBOARD TYPE SENSE

Requests the type of PS/2 keyboard connected to the controlled device.
Command 5F
Machine ID 0
Data none
Return KEYBOARD TYPE RETURN [DF]

ERROR SENSE

Requests that error data be returned from the controlled device.
If the controlled device issues an "ERROR SENSE REQUEST [F0]," you should use this command to
check the content of the error.
Command 78
Machine ID 0
Data none
Return ERROR SENSE RETURN [F8]

CAUTION SENSE

Requests that caution data be returned from the controlled device.
If the controlled device issues a "CAUTION SENSE REQUEST [F1]," you should use this command
to check the content of the error.
Command 79
Machine ID 0
Data none
Return CAUTION SENSE RETURN [F9]

TASCAM MD-CD1 RS-232C Protocol Specification

26 TEAC Corporation

INFORMATION RETURN

This is the return command in response to the command "INFORMATION REQUEST [0F]."
It returns the software version of the controlled device.
Command 8F
Machine ID 0
Data 4 bytes

Data 1 Tens digit of the software version Example of Data 1 – Data 4
Data 2 Ones digit of the software version 0100 Version 1.00
Data 3 First decimal place of the software

version

Data 4 Second decimal place of the software

version

Request INFORMATION REQUEST [0F]

AUTO CUE LEVEL RETURN

This is the return command in response to the command "AUTO CUE LEVEL PRESET [20]."
It returns the currently specified auto cue level.
Command A0
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 –24dB
0 1 –30dB
0 2 –36dB
0 3 –42dB
0 4 –48dB
0 5 -54dB
0 6 –60dB
0 7 –66dB
0 8 –72dB

Request/Preset AUTO CUE LEVEL PRESET [20]

AUTO TRACK LEVEL RETURN

This is the return command in response to the command "AUTO TRACK LEVEL PRESET [21]."
It returns the currently specified auto track level.
Command A1
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 –24dB
0 1 -30dB
0 2 -36dB
0 3 –42dB
0 4 –48dB
0 5 –54dB
0 6 –60dB
0 7 –66dB
0 8 –72dB

Request/Preset AUTO TRACK LEVEL PRESET [21]

TASCAM MD-CD1 RS-232C Protocol Specification

27 TEAC Corporation

PITCH CONTROL DATA RETURN

This is the return command in response to the command "PITCH CONTROL DATA PRESET [25]."
It returns the currently specified pitch control value.
Command A5
Machine ID 0
Data 4 bytes

Data 1 Data 2 Data 3 Data 4 Description Remarks

0 1 Positive value

Negative value

N2 N3 N1

Preset %

N1: Tens digit, N2: Ones digit, N3: First decimal
place digit

Example) 2311：-12.3%

Request/Preset PITCH CONTROL DATA PRESET [25]

AUTO TRACK TIME RETURN

This is the return command in response to the command "AUTO TRACK TIME PRESET [26]."
It returns the currently specified auto track time.
Command A6
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

N1 N2 Minutes N1:Tens digit of the minutes, N2: Ones digit of the minutes

Request/Preset AUTO TRACK TIME PRESET [26]

SYNC REC LEVEL RETURN

This is the return command in response to the command "SYNC REC LEVEL PRESET [28]."
It returns the currently specified Sync Rec level.
Command A8
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Preset –24dB
0 1 Preset –30dB
0 2 Preset –36dB
0 3 Preset –42dB
0 4 Preset –48dB
0 5 Preset –54dB
0 6 Preset –60dB
0 7 Preset –66dB
0 8 Preset –72dB

Request/Preset SYNC REC LEVEL PRESET [28]

TEXT PRESET ACKNOWLEDGE

This is the return command in response to the command "TEXT PRESET [29]."
It is returned when the specified title has been successfully written.
Command A9
Machine ID 0
Data none
Request/Preset TEXT PRESET [29]

TASCAM MD-CD1 RS-232C Protocol Specification

28 TEAC Corporation

KEY CONTROL DATA RETURN

This is the return command in response to the command "KEY CONTROL DATA PRESET [2D]."
It returns the currently specified key control value.
Command AD
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0
1

Key Up

Key Down

0 – 6 Key Change Semitone units

Request/Preset KEY CONTROL DATA PRESET [2D]

FADE IN/OUT TIME RETURN

This is the return command in response to the command "FADE IN/OUT TIME PRESET [2E]."
It returns the currently specified fade-in/out time.
Command AE
Machine ID 0
Data 4 bytes

Data 1 Data 2 Data 3 Data 4 Description Remarks

N1 N2 IN Time N1：Te n s digi t , N2：Ones digit

N3 N4 OUT Time N3：Tens d i g it, N 4 ：Ones digit

Request/Preset FADE IN/OUT TIME PRESET [2E]

DIGITAL VOLUME DATA RETURN

This is the return command in response to the command "DIGITAL VOLUME DATA PRESET [2F]."
It returns the currently specified digital volume value.
Command AF
Machine ID 0
Data 4 bytes

Data 1 Data 2 Data 3 Data 4 Description Remarks

0 1 Positive value

Negative value

N2 N3 N1

Preset Level

N1: Tens digit, N2: Ones digit, N3: First decimal
place digit

Example) 6011：-16.0dB
A A A A Preset -∞dB

Request/Preset DIGITAL VOLUME DATA PRESET [2F]

AUTO CUE SELECT RETURN

This is the return command in response to the command "AUTO CUE SELECT [30]."
It returns the Auto Cue on/off status.
Command B0
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Auto Cue Off
0 1 Auto Cue On

Request/Preset AUTO CUE SELECT [30]

TASCAM MD-CD1 RS-232C Protocol Specification

29 TEAC Corporation

AUTO TRACK SELECT RETURN

This is the return command in response to the command "AUTO TRACK SELECT [31]."
It returns the Auto Track on/off status.
Command B1
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Auto Track Off
0 1 Auto Track On

(Level)

Auto Track is executed according to the specified AUTO
TRACK LEVEL.

0 2 Auto Track On

(Digital
Direct)

Auto Track is executed according to the track data within
the S/P DIF signal.

0 3 Auto Track On

(Time)

Auto Track is executed according to the specified AUTO
TRACK TIME.

Request/Preset AUTO TRACK SELECT [31]

EOM TRACK TIME RETURN

This is the return command in response to the command "EOM TRACK TIME PRESET [32]."
It returns the time at which the EOM (End Of Message) function will give notice that the end of the
track is near.
Command B2
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 EOM Track

Off

N1 N2 Number of

seconds

N1: Tens digit of seconds, N2: Ones digit of seconds

Request/Preset EOM TRACK TIME PRESET [32]

EOM DISC TIME RETURN

This is the return command in response to the command "EOM DISC TIME PRESET [33]."
It returns the time at which the EOM (End Of Message) function will give notice that the end of the
disc is near.
Command B3
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 EOM Disc Off

N1 N2 Number of

seconds

N1: Tens digit of seconds, N2: Ones digit of seconds

Request/Preset EOM DISC TIME PRESET [33]

PITCH CONTROL SELECT RETURN

This is the return command for the command "PITCH CONTROL SELECT [35]."
It returns the Pitch Control on/off status.
Command B5
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Pitch Control Off
0 1 Pitch Control On

TASCAM MD-CD1 RS-232C Protocol Specification

30 TEAC Corporation

Request/Preset PITCH CONTROL SELECT [35]

TASCAM MD-CD1 RS-232C Protocol Specification

31 TEAC Corporation

AUTO READY SELECT RETURN

This is the return command for the command "AUTO READY SELECT [36]."
It returns the Auto Ready on/off status.
Command B6
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Auto Ready

Off

0 1 Auto Ready

On

Request/Preset AUTO READY SELECT [36]

REPEAT SELECT RETURN

This is the return command for the command "REPEAT SELECT [37]."
It returns the Repeat Mode on/off status.
Command B7
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Repeat Off
0 1 Repeat On

Request/Preset REPEAT SELECT [37]

SYNC REC SELECT RETURN

This is the return command for the command "SYNC REC SELECT [38]."
It returns the Sync Rec on/off status.
Command B8
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Sync Rec Off
0 1 Sync Rec On

Request/Preset SYNC REC SELECT [38]

INCR PLAY SELECT RETURN

This is the return command for the command "INCR PLAYSYNC SELECT [3A]."
It returns the Incremental Play on/off status.
Command BA
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 INCR Play Off
0 1 INCR Play On

Request/Preset INCR PLAY SELECT [3A]

TASCAM MD-CD1 RS-232C Protocol Specification

32 TEAC Corporation

KEY CONTROL SELECT RETURN

This is the return command for the command "KEY CONTROL SELECT [3D]."
It returns the Key Control on/off status.
Command BD
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Key Control

Off

0 1 Key Control

On

Request/Preset KEY CONTROL SELECT [3D]

REMOTE/LOCAL SELECT RETURN

This is the return command for the command "REMOTE/LOCAL SELECT [4C]."
It returns the enabled or disabled status for operation of the device's panel keys.
Command CC
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Remote Only remote operations via RS-232C and the wired remote

control unit are valid. Key operations on the device's own
panel are disabled.

0 1 Local Remote operations as well as operations of the device's own

panel are valid.

Request/Preset REMOTE/LOCAL SELECT [4C]

PLAY MODE RETURN

This is the return command for the command "PLAY MODE SENSE [4E]."
It returns the current Play mode.
Command CE
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Continue Play all tracks on the disc
0 1 Single Play a single track
0 4 Program (Data

Empty)

Program Play mode (with no tracks programmed)

0 5 Program Program Play mode
0 6 Random Random Play mode

Request/Preset PLAY MODE SENSE [4E]

TASCAM MD-CD1 RS-232C Protocol Specification

33 TEAC Corporation

MECHA STATUS RETURN

This is the return command for the command "MECHA STATUS SENSE [50]."
It returns the current operating status of the mechanism.
Command D0
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 No Disc No disc is inserted
0 1 Tray Tray is being opened or closed
0 2 Open Tray is open
1 0 Stop Stopped
1 1 Play Playing
1 2 Ready On Play-ready mode
8 0 Monitor Input monitor status (no disc is inserted)
8 1 Record Recording
8 2 Record Ready Record-ready mode
8 3 TOC Writing Writing the TOC / Erasing or Finalizing

Request/Preset MECHA STATUS SENSE [50]

ISRC RETURN

This is the return command for the command "ISRC SENSE [53]."
It returns the ISRC code for the current track number.
Command D3
Machine ID 0
Data 12 bytes

Description Remarks
Data 1 – Data
12

ISRC code

Single-byte alphanumeric characters
(If no ISRC code is stored, returns all zeros.)

Request/Preset ISRC SENSE [53]

TRACK No. RETURN

This is the return command for the command "TRACK No. SENSE [55]."
It returns whether the current track number and EOM are shown.
If Group mode is on, the group number is returned.
Command D5
Machine ID 0
Data 6 bytes

Description Remarks
Data 1
Data 2

EOM Status

00：EOM indication not shown

01：EOM is displayed
Data 3 Tens digit 0000 Stopped, and track is not cued, etc.
Data 4 Ones digit 0001 – 0999 Track number
Data 5 Thousands

digit

1000 Group mode is on, but no group has been created

Data 6 Hundreds

digit

1001 - 1099 Group number

・ The group number is returned with 1000 added.

Request/Preset TRACK No. SENSE [55]

TASCAM MD-CD1 RS-232C Protocol Specification

34 TEAC Corporation

DISC STATUS RETURN

This is the return command for the command "DISC STATUS SENSE [56]."
It returns the presence/absence of a disc, and the type of disc.
Command D6
Machine ID 0
Data 4 bytes

Data 1
Data 2

Disc Status

00：Disc not present
01：Disc present

Data 3

Data 4

Disc Type

00：CD-DA
01：CD-R (Audio)
02：CD-RW (Audio)
10：CD-Data (MP3 CD)
11：CD-R (Data)
12：CD-RW (Data)

Request/Preset DISC STATUS SENSE [56]

CURRENT TRACK INFORMATION RETURN

This is the return command for the command "CURRENT TRACK INFORMATION SENSE [57]."
If the Play mode is Program mode, this returns the program number. For any other Play mode, it
returns the track number.
Command D7
Machine ID 0
Data 12 bytes

Description Remarks
Data 1 Tens digit of the

track number

Data 2 Ones digit of the

track number

Data 3 Thousands digit of

the track number

Data 4 Hundreds digit of

the track number

Data 5 Tens digit of the

minutes

Data 6 Ones digit of the

minutes

Data 7 Hundreds digit of

the minutes

Data 8 Thousands digit of

the minutes

Data 9 Tens digit of the

seconds

Data 10 Ones digit of the

seconds
Data 11 0 0 is returned.
Data 12 0 0 is returned.

Request/Preset CURRENT TRACK INFORMATION SENSE [57]

TASCAM MD-CD1 RS-232C Protocol Specification

35 TEAC Corporation

CURRENT TRACK TIME RETURN

This is the return command for the command "CURRENT TRACK TIME SENSE [58]."
It returns the current track time or the disc time.
Command D8
Machine ID 0
Data 10 bytes

Description Remarks

Data 1

00：Track elapsed time
01：Track remaining time

Data 2

Time Mode

02：Disc elapsed time
03：Disc remaining time

Data 3 Tens digit of the

minutes
Data 4 Ones digit of the

minutes
Data 5 Hundreds digit of

the minutes
Data 6 Thousands digit of

the minutes
Data 7 Tens digit of the

seconds
Data 8 Ones digit of the

seconds
Data 9 0 0 is returned.
Data 10 0 0 is returned.

Request/Preset CURRENT TRACK TIME SENSE [58]

TEXT RETURN

This is the return command for the command "TEXT SENSE [59]."
It returns the title of the track or disc.
If no title has been written for the specified track or the disc, this returns the command "ILLEGAL
SENSE REQUEST [F2]."
Command D9
Machine ID 0
Data none
Data 5 bytes～84 bytes

Description Remarks
Data 1 Tens digit of the

specified number
Data 2 Ones digit of the

specified number
Data 3 Thousands digit of

the specified

number
Data 4 Hundreds digit of

the specified

number

0000
0001 – 0999

Disc title
Track title

Data 5 – Data
84

Title Single-byte alphanumeric characters

・ The title is between 0 and 80 characters in length.

Request/Preset TEXT SENSE [59]

TASCAM MD-CD1 RS-232C Protocol Specification

36 TEAC Corporation

TOTAL TRACK No./TOTAL TIME RETURN

This is the return command for the command "TOTAL TRACK No./TOTAL TIME SENSE [5D]."
It returns the total number of tracks and the total time of the disc.
Command DD
Machine ID 0
Data 12 bytes

Description Remarks
Data 1 Tens digit of total

number of tracks
Data 2 Ones digit of total

number of tracks
Data 3 Thousands digit of

total number of

tracks
Data 4 Hundreds digit of

total number of

tracks

If Data 1 – Data 4 is 0000, the disc is either a blank disc,
or no disc is inserted.

Data 5 Tens digit of

minutes
Data 6 Ones digit of the

minutes
Data 7 Hundreds digit of

the minutes
Data 8 Thousands digit of

the minutes
Data 9 Tens digit of the

seconds
Data 10 Ones digit of the

seconds
Data 11 0 0 is returned.
Data 12 0 0 is returned.

Request/Preset TOTAL TRACK No./TOTAL TIME SENSE [5D]

PGM TOTAL TRACK No./TOTAL TIME RETURN

This is the return command for the command "PGM TOTAL TRACK No./TOTAL TIME SENSE
[5E]."
It returns the total number of tracks and total disc time for Program Play mode.
Command DE
Machine ID 0
Data 12 bytes

Description Remarks
Data 1 Tens digit of total

number of tracks
Data 2 Ones digit of total

number of tracks
Data 3 Thousands digit of

total number of

tracks
Data 4 Hundreds digit of

total number of

tracks

If Data 1 – Data 4 is 0000, no program has been created.

TASCAM MD-CD1 RS-232C Protocol Specification

37 TEAC Corporation

Data 5 Tens digit of the

minutes
Data 6 Ones digit of the

minutes
Data 7 Hundreds digit of

the minutes
Data 8 Thousands digit of

the minutes
Data 9 Tens digit of the

seconds
Data 10 Ones digit of the

seconds
Data 11 0 0 is returned.
Data 12 0 0 is returned.

Request/Preset PGM TOTAL TRACK No./TOTAL TIME SENSE [5E]

KEYBOARD TYPE RETURN

This is the return command for the command "KEYBOARD TYPE SENSE[5F]."
It returns the type of PS/2 keyboard.
Command DF
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Japanese Keyboard The setting when a Japanese keyboard is connected
0 1 US Keyboard The setting with an English keyboard is connected

Request/Preset KEYBOARD TYPE SENSE [5F]

ERROR SENSE REQUEST

This is transmitted when the controlled device is in an error condition.
If this command is transmitted from the controlled device, the external controller device should
transmit the command "ERROR SENSE [78]" to determine the content of the error.
Command F0
Machine ID 0
Data none
Request/Preset none

CAUTION SENSE REQUEST

This is transmitted when the controlled device is in a caution condition.
If this command is transmitted from the controlled device, the external controller device should
transmit the command "CAUTION SENSE [79]" to determine the content of the warning.
Command F1
Machine ID 0
Data none
Request/Preset none

ILLEGAL STATUS

This command is returned when an invalid command or data has been sent to the controlled device.
If this command is transmitted from the controlled device, the external controller device should
re-transmit the correct command or data in compliance with the specifications.
Command F2
Machine ID 0
Data none
Request/Preset none

TASCAM MD-CD1 RS-232C Protocol Specification

38 TEAC Corporation

POWER ON STATUS

This command indicates that the controlled device has been powered-on.
Command F4
Machine ID 0
Data none
Request/Preset none

CHANGED STATUS

This command indicates that the operation or mode of the controlled device has changed.
Command F6
Machine ID 0
Data 2 bytes

Data 1 Data 2 Description Remarks

0 0 Changed Mechanical

Status

The status of the mechanism has changed

0 3 Changed Track/EOM

Status

The track number has changed. The EOM
display/non-display state has changed.

Request/Preset none

TASCAM MD-CD1 RS-232C Protocol Specification

39 TEAC Corporation

ERROR SENSE RETURN

This is the return command for the command "ERROR SENSE [78]."
It returns an error code.
Command F8
Machine ID 0
Data 4 bytes

Data 1 N2 Error code (N1-N2N3)
Data 2 N3 1–01 Rec Error
Data 3 0 1-02 Drive Error
Date 4 N1 1-12 Disc Error
1-1F Format Error

Request/Preset ERROR SENSE [78]

CAUTION SENSE RETURN

This is the return command for the command "CAUTION SENSE [79]."
It returns a caution code.
Command F9
Machine ID 0
Data 4 bytes

Data 1 N2 Warning code (N1-N2N3)
Data 2 N3 1-04 Sure? Text
Data 3 0 1-05 Tray Error
Data 4 N1 1-06 Disc Full
1-07 Track Full
1-09 D-In Unlock
1-0B Can’t REC
1-0F Can’t Edit
1-13 Can’t Select
1-15 Not Fs44.1k
1-16 Text Full
1-19 PGM Full
1-1A PGM Empty
1-1B Ext CLK Err
1-1D Not Audio
1-1E Decode Error

Request/Preset none