BU94605AKV Datasheet, PDF (46/84 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card +CD-ROM+MP3 Record

BU94605AKV BU94607AKV BU94702AKV BU94705AKV
Datasheet
21. Previous Command Processing Situation
The previous command processing situation is outputted as status register STATUS6 (OFFSET=0x05) PRECOMSTAT.
Bit0 of STATUS6 (OFFSET=0x05) and Bit2 of STATUS2 (OFFSET=0x01) is the same value. When Bit2 of STATUS2 set
to "0", the previous command is normally processed. When Bit2 of STATUS2 set to "1", the previous command is not
processed.
The following shows the value descriptions.
Value
0x01
0x03
0x05
0x07
0x09
0x0B
0x0F
0x11
0x13
0x15
Table 26. Previous command processing
NAME
Cause of being unprocessed
UNCLASSIFIED
Non classification error
UNKNOWN CMD
Undefined command
SEARCH
Searching now
INVALID ARG
Invalid parameter is detected.
WRONG MODE
Invalid command in the current system operation mode
NOT READY
Initialization is not completed.
NOT IMPLEMENTED The function is not mounted.
WRITE PROTECTED The device is write-protected.
DISK FULL
The memory has no free space.
DEVICE ERROR
Device error
22. Selected memory information
The kind and information on a device which are selected now are outputted by the READ_MEMINFO command.
The details of an output value are shown below.
Value[7:4]
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
0x8-0xF
Table 27. Selected memory information
Contents
Mounted USB device (playable device)
NO-Mounted USB device (file system un-support, etc)
USB LOW SPEED device
USB device with two or more DEVICE CONFIGRATION
USB device which cannot be recognized
-
-
SD Card
It means that there is HUB, when Bit7 is H.
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2012.12.10 Rev.002