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3.
Command format
3.1. Command format overview
The command format is as follows.
Byte 1
Byte 2
Byte 3
LF
ID
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
LF
ASCII
0Ah
30h
HEX
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
LF
ASCII
0Ah
30h
HEX
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
LF
ASCII
0Ah
30h
HEX
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.
Byte 4
Byte 5
Command
Data 1
Command
0
1
2
CR
31h
32h
0Dh
Command
0
2
3
2
32h
33h
32h
Command
0
2
9
2
32h
39h
32h
TASCAM CD-RW901 RS-232C Protocol Specification
Byte 6
Byte 7
Data 2
Data 3
Data：track 123
3
0
1
33h
30h
31h
Track 23
3
0
1
33h
30h
30h
3
Byte 8
...
Data 4
...
CR
0Dh
Title： Test
T
e
s
t
54h
65h
73h
74h
TEAC Corporation
Byte n
CR
CR
0Dh
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