Sony 70AP Car Stereo System User Manual


 
71
DSR Series
(11) FILE OPEN STATUS SENSE
In the DSR-DR1000, the FILE OPEN STATUS SENSE is the command that aims at inquiry of the FILE
OPEN STATUS (status of OPEN PLAY).
Command format
Item Size Value Description
DC 1 0x01 Data Count
CMD1 1 0x10 Command1
CMD2 1 0x43 Command2
DATA1 1 0xXX PORT ID
In the DSR-DR1000, PORT ID of the FILE OPEN STATUS SENSE is ignored.
(12) FILE OPEN STATUS
In the DSR-DR1000, the FILE OPEN STATUS is the status that aims at inquiry of the processing status
of OPEN PLAY.
Command format
Item Size Value Description
DC 1 0x0X Data Count
CMD1 1 0x18 Command1
CMD2 1 0x00 Command2
DATA1 1 0xXX PORT ID
DATA2 1 0xXX FILE OPEN STATUS
DATA3 1 0x00 FILE OPEN MODE
DATA4 1 0x00 FILE HANDLE
DATA5 1 0x00 TRANSFER SPEED
DC It varies depending on the FILE OPEN STATUS.
PORT ID PORT ID that is received with the FILE OPEN STATUS SENSE
FILE OPEN STATUS Status of OPEN PLAY
FILE OPEN MODE 0x00
FILE HANDLE 0x00
TRANSFER SPEED 0x00
In the DSR-DR1000, the FILE HANDLE takes the value of 0x00 only. Because the OPEN-related
commands are not supported except OPEN PLAY, the FILE OPEN MODE takes the value of 0x00 only.
The TRANSFER SPEED is not used actually, but because it is necessary due to the command format,
0x00 is entered.
This command contains a data in which bit rate is going to be set. Because the OPEN REC and so on are
not supported in the DSR-DR1000, it is not described.
If the OPEN PLAY command is not sent to the DSR-DR1000 even once, the FILE OPEN STATUS
becomes 0x01.