Sony 70P Car Stereo System User Manual


 
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DSR Series
4. Sense Command
The Sense Request and the Sense Return of the Disk command that are supported by the DSR-DR1000
are shown below.
(1) DRIVE STATUS SENSE
In the DSR-DR1000, the DRIVE STATUS SENSE is the command that aims at inquiring the DRIVE
STATUS (aiming at confirmation of the processing status of the DELETE command, and aiming at confir-
mation of the remaining free capacity of the recording hard disk (to be abbreviated simply as HD hereafter)).
Command format
Item Size Value Description
DC 1 0x03 Data Count
CMD1 1 0x14 Command1
CMD2 1 0xD0 Command2
DATA1 1 0x00 DRIVE ID
DATA2 1 0xXX DRIVE STATUS TABLE No.
DATA3 1 0xXX LENGTH
Requests that cannot be accepted due to their contents
1. Requesting the Data Count using a value other than 0x03.
2. Requesting the DRIVE ID using a value other than 0x00.
3. Requesting the LENGTH using a value of 254 or more.
4. Requesting the DRIVE STATUS TABLE No. + LENGTH using a value of 257 or more.
If any request having the above-described contents is issued, the DRIVE STATUS is returned as
“DRIVE STATUS (without any additional data)”
(2) DRIVE STATUS
In the DSR-DR1000, the DRIVE STATUS is the status that aims at the replies for the inquiry of the
DELETE processing status and inquiry for the remaining capacity of HD.
Command format
Item Size Value Description
DC 1 0xXX Data Count
CMD1 1 0x15 Command1
CMD2 1 0xD0 Command2
DATA1 1 0xXX DRIVE ID
DATA2 1 0xXX DRIVE STATUS TABLE No.
DATA3 1 0xXX DRIVE STATUS VALUE
DC
Received with DRIVE STATUS SENSE. The LENGTH + 2 (DRIVE ID/
DRIVE STATUS TABLE No.)
DRIVE ID Received with DRIVE STATUS SENSE. The DRIVE ID value
DRIVE STATUS TABLE No. Received with DRIVE STATUS SENSE. The DRIVE STATUS TABLE
No. value
DRIVE STATUS VALUE
DRIVE STATUS TABLE DATA as many as the number of the LENGTHs
starting from the TABLE NUMBER specified by the DRIVE STATUS SENSE.