BU94605AKV Datasheet, PDF (59/84 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card +CD-ROM+MP3 Record

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Datasheet
PLST_MOV_PRE
V
4 0x62 0x14 0x01 N ・This command moves the play list browsing cursor to the position N
backward from the current position.
・The LSI analyzes the information as much as the files (or folders) set by
the SET_BROWSE_NUM command. After analysis, the LSI writes the
result to the status register.
・If any play list is not selected, the command will not be accepted.
PLST_MOV_HOM
E
4 0x62 0x14 0x02 0x00 ・This command moves the play list browsing cursor to the top.
・The LSI analyzes the information as much as the files (or folders) set by
the SET_BROWSE_NUM command. After analysis, the LSI writes the
result to the status register.
・If any play list is not selected, the command will not be accepted.
PLST_MOV_PLAY 4 0x62 0x14 0x03 0x00 ・This command moves the play list browsing cursor to the tune being
ING
played.
・The LSI analyzes the information as much as the files (or folders) set by
the SET_BROWSE_NUM command. After analysis, the LSI writes the
result to the status register.
・If any play list is not selected, the command will not be accepted.
FILE RW
FOPEN_R
260 0x63 0x01 0x00 0x00 ・This command specifies the full path and name of the file to be read
from the memory using the File Read function.
・If a file exists after receiving the command, open the specified file.
・The file name is set at the 5^th-260^th bytes. *3
FOPEN_R_CURS
OR
4 0x63 0x01 0x01 0x00 ・This command specifies the file pointed by the memory browsing cursor
for the one to be read from the memory using the File Read function.
・If a file exists after receiving the command, open the specified file.
・When the full path of the entry that the cursor indicates is larger than that
of 256 bytes, Status1.ERROR becomes H.
FOPEN_R_DIREC 10 0x63 0x01 0x02 0x00 ・This command specifies the access data of the file to be read from the
T
memory using the File Read function.
・The access data is 6 bytes. Set it at the 5^th-10^th bytes. *2
・If a file exists after receiving the command, open the specified file.
FOPEN_W
266 0x63 0x02 0x00 0x00 ・This command specifies the full path, name, and update date information
of the file to be written to the memory using the File Write function.
・After receiving the command, open the specified file.
・You can set the update date information in terms of year, month, day
and time.
・Set the update date information at the 5^th-10^th bytes in BCD format in the
order of year (upper), year (lower), month, day, hour, and minute. If all
the data of the update date information is set to 0x00, the LSI considers
that 0x20, 0x09, 0x01, 0x01, 0x12, and 0x00 are specified when
processing the data.
・The file name is set at the 11^th-266^th bytes. *3
・If the specified file does not exist, it should be created.
・A file with the same name that already exists will be deleted.
・After creating a file, the structure of the file creation folder (including the
intermediate folders) is changed. Thus, when using the browsing
function, you should start over browsing analysis by ANALYZE_ROOT.
FCLOSE
4 0x63 0x03 0x00 0x00 ・This command closes the file.
・After the File Read/Write function is completed, CLOSE the file.
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TSZ02201-0V2V0E600090-1-2
2012.12.10 Rev.002