Roland RS 232C MP3 Player User Manual


 
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AR-3000 RS-232C Reference -33
4.2.5 Reply Commands
= ACK
Function: Response to normal reception of a command
Syntax: ACK (06H)
= ER (ERror)
Function: Reply to the AR-3000 when an error has occurred
Syntax: stxER: * ;
a
a Error number
0 Send this command to the AR-3000 when the output of the AR-3000 could
not be read (In the case of a request command, the AR-3000 will re-transmit
the Setting output command.)
1 Send this command when the output of the AR-3000 for confirmation is
incorrect in Delete mode. Then the command you transmitted will be
canceled, and the AR-3000 will automatically exit Delete mode.
= Xon (11H)/Xoff (13H)
Function: Allow or disable transmission. Used for handshaking.
Syntax: Xon is 11H only (transmission permitted)
Xoff is 13H only (transmission disabled)
4.3 Commands Sent from the AR-3000 to the External Device (Computer)
The following two types of commands are sent from the AR-3000 to an external device. In this
explanation, “external device” refers to the computer. “AR” refers to the AR-3000.
1) Setting output commands
These commands output the current setting status of the AR-3000. They are output in response
to a request command from the external device.
2) Reply commands
Reply commands are necessary for communication control, such as acknowledgment that a
command was correctly received, etc.
4.4 Details of Commands Sent from the AR-3000 to the External Device (Computer)
4.4.1 Setting Output Commands
= CS (Card Set)
Function: Card setting output
Syntax: stxCS: * ,********, * , * , *** , ***** , * ;
a b c d e f g
a Card in slot
0 Card in slot A
1 Card in slot B
b Card name (8 characters)
c Reserved
d Reserved
e Maximum number of phrase
0 (250)
1 (500)
1 (1000)