Tascam CD-01 U User Manual

TASCAM CD-01U/CD-01U PRO RS-232C Protocol Specifications

TASCAM CD-01U/CD-01UPRO

CONTROL I/O Terminals

RS-232C Protocol Specifications

Ver. 1.02

July 2005

TEAC

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TASCAM CD-01U/CD-01U PRO RS-232C Protocol Specifications

1. Overview

The CD-01U/CD-01U PRO (here referred to as “controlled device”) functions can be controlled using a serial RS-232C connection from an external device, such as a computer. Such a device is referred to here 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

Impedance at receiver When measured with an applied voltage of between +/-3 V and

Open circuit voltage at transmitter < 25V Open circuit voltage at receiver < 2V

Signal voltage When the open circuit voltage at the receiver is 0 V, the signal

Signal discrimination Logical “1” = < -3V

standards) Note that this is not compatible with the RS-422 used in professional VTR units.

+/-15 V, the DC resistance is between 3 kohm and 7 kohm. Total load capacitance of < 2500 pF

voltage is between +/-5 V and +/-15 V against a load impedance of between 3 kohm and 7 kohm.

Logical “0” = > +3V

2.2. Communication format

Circuit type 3-wire, Half-duplex Transmission type Digital binary serial Data speed (baud rate) 9600/19200/38400 bit/sec Word length 8-bit Parity bit None Stop bit 1 bit (* Word length, parity bit, and stop bit of CD-01U are fixed.)

2.3. Connector pin-out

Connector D-sub 9pin female (Inch screw 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 - (Reserved) Reserved 5 - GND Signal ground pin 6 - (Reserved) Reserved 7 - (Reserved) Reserved 8 - (Reserved) Reserved

9 - NC Not connected *1: Impress voltage complied with RS-232C standard to Rx Data. *2: CD-01U doesn’t have RTS/CTS terminals for loop-back in this connector. Make sure the

specifications of external controller and if necessary, please have the loop-back circuit outside of the CD-01U.

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TASCAM CD-01U/CD-01U PRO RS-232C Protocol Specifications

RXD

TXD

GND GND

CD-01U/CD-01U PRO External controller

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TASCAM CD-01U/CD-01U PRO RS-232C Protocol Specifications

3. Command Format

3.1. Command Format Overview

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

The codes described here are transmitted in ASCII format (e.g. a command described as “23” is transmitted as ASCII ’2’ followed by ASCII ’3’). Uppercase letters are used for letters ’A’ through ’F’. All commands must be prefixed by a line-feed (LF) character [0Ah] followed by a Machine ID. All commands are terminated by a carriage return (CR) character [0Dh].

Sample command s

Sample 1: PLAY command (Machine ID=0)

When the controlled device is in STOP/READY mode, this command starts playback. The PLAY command is [12], and it is transmitted using the following sequence:

ID Command

ASCII LF 0 1 2 CR

HEX 0Ah 30h 31h 32h 0Dh

Sample 2:Direct search for track 12 (Machine ID=0)

In order to perform this operation, “DIRECT TRACK SEARCH PRESET [23]” command is used. The track number is also sent as a parameter (data). This is sent in four bytes, as shown below:

ID Command Data: 12th track

ASCII LF 0 2 3 1 2 0 0 CR

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

The four data bytes represent, in order, the following digits of the track number: the “tens” digit (1), the “units” digit (2), the “thousands” digit (0), and the “hundreds” digit (0).

3.2. Machine ID

Machine ID of this device is fixed to [0]. A command with other Machine ID than [0] is ignored.

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TASCAM CD-01U/CD-01U PRO RS-232C Protocol Specifications

3.3. List of Commands

Control/Preset/Sense Command Return Command

88 TIME DATA 0F INFORMATION REQUEST 8F INFORMATION RETURN 10 STOP

12 PLAY 14 READY 15 JOG 16 SHUTTLE 18 EJECT

1A TRACK SKIP 1D CALL

20 AUTO CUE LEVEL PRESET A0 AUTO CUE LEVEL RETURN 23 DIRECT TRACK SEARCH PRESET 25 PITCH CONTROL DATA PRESET A5 PITCH CONTROL DATA RETURN

2C TIME SEARCH PRESET

2E FADE IN/OUT TIME PRESET AE FADE IN/OUT TIME RETURN 30 AUTO CUE SELECT B0 AUTO CUE SELECT RETURN 32 EOM TRACK TIME PRESET B2 EOM TRACK TIME RETURN 34 TIMER RESUME PLAY SELECT B4 TIMER RESUME PLAY SELECT 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

3A INCR PLAY SELECT BA INCR PLAY SELECT RETURN

3E FADE IN/OUT SELECT BE FADE IN/OUT SELECT RETURN 3F TIME DATA SEND SELECT BF TIME DATA SEND SELECT RTURN

4D PLAY MODE SELECT

4E PLAY MODE SENSE CE PLAY MODE RTURN 50 MECHA STATUS SENSE D0 MECHA STATUS RETURN 53 ISRC SENSE D3 ISRC RETURN 55 TRACK No. SENSE D5 TRACK No. 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

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

F0 ERROR SENSE REQUEST

F2 ILLEGAL STATUS

F4 POWER ON STATUS

F6 CHANGE STATUS 78 ERROR SENSE F8 ERROR SENSE RETURN

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TASCAM CD-01U/CD-01U PRO RS-232C Protocol Specifications

Version up history

Ver. 1.00: Released version. Ver. 1.02: Following commands to be added.

PITCH CONTROL DATA PRESET [25] FADE IN/OUT TIME PRESET [2E] EOM TRACK TIME PRESET [32] TIMER RESUME PLAY SELECT [34] FADE IN/OUT SELECT [3E] TIME DATA SEND SELECT [3F] PLAY MODE SENSE [4E] ISRC SENSE [53] CURRENT TRACK TIME SENSE [58] TOTAL TRACK No. / TOTAL TIME SENSE [5D] PITCH CONTROL DATA RETURN [A5] FADE IN/OUT TIME RETURN [AE] EOM TRACK TIME RETURN [B2] TIMER RESUME PLAY SELECT RETURN [B4] FADE IN/OUT SELECT RETURN [BE] TIME DATA SEND SELECT RETURN [BF] PLAY MODE RETURN [CE] ISRC RETURN [D3] CURRENT TRACK TIME RETURN [D8] TOTAL TRACK No. / TOTAL TIME RETURN [DD]

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TASCAM CD-01U/CD-01U PRO RS-232C Protocol Specifications

3.4. Command Sequence

The CD-01U/CD-01U PRO does not have the “ACK” command for the each transport control command and data preset command. When a request command is transmitted from external controller to the controlled device, the controlled device sends an appropriate return command. When the mechanism status of the controlled device is changed (i.e. from stop to play ), or an error occurs, the controlled device sends a command to notify such change to the external controller. Some samples of command sequence are described below:

Note that an interval of at least 20 ms must be left between commands.

Sample 1: Transport control (i.e. PLAY)

The controlled device is in STOP mode. Send the transport control (PLAY) command from the external controller to the controlled device. The controlled device starts playback and sends the CHANGE STATUS return command.

Command

External controller Controlled device

PLAY -> Starts playback

CHANGED STATUS Sent the CHANGE STATUS

Sample 2: To preset a data (i.e. PITCH CONTROL DATA PRESET)

Send the PITCH CONTROL DATA PRESET command with pitch control value from the external controller to the controlled device. The controlled device sets the pitch control data.

Command

External controller Controlled device

PITCH CONTROL DATA PRESET (i. e. –1.0%)

Sample 3: To request the status or a data currently set (i.e. PITCH CONTROL DATA)

Send the PITCH CONTROL DATA PRESET command with request data [FF] from the external controller to the controlled device. If the controlled device has the pitch control data, the controlled device returns the PITCH CONTROL DATA RETURN with pitch control value.

External controller Controlled device

PITCH CONTROL DATA PRESET (with FF)

Command

PITCH CONTROL DATA RETURN

Status of the controlled

STOP

return command

Status of the controlled

Sets pitch control data to -1.0%.

Status of the controlled

device

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TASCAM CD-01U/CD-01U PRO RS-232C Protocol Specifications

4. Command Detail

Commands, data, and machine IDs which are described here are represented in characters (ASCII). A command is a 2-byte character, a Machine ID is a 1-byte character, and each data is a 1-byte character.

4-1. INFORMATION REQUEST

Requests the internal software version number of the controlled device.

Command 0F Data None Return INFORMATION RETURN [8F]

4-2. STOP

Puts the controlled device into STOP mode.

Command 10 Data None Return None

4-3. PLAY

Puts the controlled device into PLAY mode.

Command 12 Data None Return None

4-4. READY

Puts the controlled device into READY mode.

Command 14 Data 2 bytes Return None

Data 1 Data 2 Description Remarks

0 0 Ready Off 0 1 Ready On

· If the specified data is other than described above, the controlled device sends ILLEGAL [F2].

4-5. JOG

Turns the JOG mode on and off, and performs frame accurate search.

Command 15 Data 2 bytes Return None

Data 1 Data 2 Description Remarks

0 0 Jog Off Turns the Jog mode off 0 1 Jog On Turns the Jog mode on 1 0 Jog Forward Frame accurate search in forward direction 1 1 Jog Reverse Frame accurate search in backward direction

· If the specified data is other than described above, the controlled device sends ILLEGAL [F2].

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