BU94605AKV Datasheet, PDF (63/84 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card +CD-ROM+MP3 Record

BU94605AKV BU94607AKV BU94702AKV BU94705AKV
Datasheet
START_CDANA
STOP_CDANA
CD_SET_VD
CD_SET_LBN
4 or8
4
4
12-
0x65 0x01 0x02 0x00 ・This command starts analyzing the CD-ROM file system.
・After receiving the command, the LSI requests the necessary LBN.
・When the necessary LBN data is input, the LSI analyzes the data. After
analysis, it outputs the analyzed result to the status register.
・If the command length is less than 8 bytes, the LSI searches the
CD-ROM file system information starting from LBN=0.
・To analyze the file system information after the 2^nd session on the
multi-session disk, you must specify the starting LBN. In this case,
specify the LBN in which the file system information resides (after the
start position of this session) at the 5^th-8^th bytes in Little Endian format.
・Reset the acquisition state of a file/folder information.
0x65 0x01 0x03 0x00 ・This command stops or suspends analysis of the CD-ROM file system.
・If the file system analysis is not completed, you can restart it.
0x65 0x02 0x00 N ・This command set Volume Descriptor, which is preferred during the
CD-ROM file system analysis, at the 4^th byte.
・Select N at the 4^th byte from the following. Any other settings will not
accept the command.
N=0x00: PVD preferred
N=0x01: SVD preferred
・By default, N=0x00: "PVD preferred" is set.
0x65 0x03 0x00 N ・This command sets the information on the file to be played (first LBN, file
size, file name and file kind).
・Select N at the 4^th byte from the following. Any other settings will not
accept the command.
N=0x01:MP3 , N=0x02:WMA
Please specify the value read by the READ_CD_FILE command as it
is.
・Set the LBN data at the 5^th-8^th bytes in Little Endian format.
・Set the size data at the 9^th-12^th bytes in Little Endian format.
・Set the file name at the 13^th and following bytes with NUL (0x00) at the
end. If the command length is less than 14 bytes, do not set the file
name. In this case, the file name is obtained as a null character string with
some commands such as READ_PFILE_NAME.
・After receiving the command, the LSI requests necessary LBN. When
the valid data is input, the LSI starts decoding the data.
・When the playing of the file ends, the next tune is selected, and it
becomes stop condition.
*1 BU94702AKV and BU94705AKV only.
*2 The access data must analyze the browsing, and use the acquired data.
Please analyze again when the exchange or the file of media is deleted,
and the file is written, and acquire the access data.
*3 The full path of file name is 256 bytes at maximum (including drive letter (A:Â¥), file name and extension) and less
than 16 class. Please specify the full path in the language set by the SET_LANG command. Please set N=0x00
to the SET_LANG2 command.
If the length is less than 256 bytes, insert 0x00 at the end. Insert ”¥”(0x5C) for the delimiter between folder layers.
The drive letter is "A:Â¥" for USB and "B:Â¥" for SD. You can also specify the path in a format without drive letter. If
the full path has a drive letter different from the one for the memory being selected, Status1.ERROR=H occurs.
(For example, "B:Â¥" is set for the full path when USB is selected.)
The full path becomes 251 bytes or less when START_ENCODE command.
Table 32. Command enable/disable in each system operation mode
Command
Command enable/disable in
each system operation mode
Command enable/disable
in each status
CONFI PLAYE FILE
G
R
RW
CONFIG
CHG_SYSTEM_M
ODE
○
○
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STOP
○
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ABORT
○
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CHG_DEV
○
○
○
PLAYL IPL CD-D CD-R STOP PLAY SEAR SEAR Analy Write ERRO
IST WRITE A OM
CH CH ze
R
(mode) (file)
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○
○
○
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×
× ×× ○
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○○
○
○ ○○ ○
○
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○○
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○ ○× ×
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×
× ×× ○
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TSZ22111・15・001
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TSZ02201-0V2V0E600090-1-2
2012.12.10 Rev.002