BU94603KV Functional Specifications
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Target Spec 0.12
VI.4.3 Folder information/File information
For analysis performed by
“GET_DIRECT” command, read 76 bytes from the status register “COMAREA
(0x20-0x6B)
” using status commands “READ_FOLDER_INFO” and “READ_FILE_INFO”.Each of the status
register structures when
“READ_FOLDER_INFO” and “READ_FILE_INFO” are sent is shown below.
(1) Folder information
When the folder is specified using
“SET_DIRECT”, the LSI allows you to fetch the folder information in the
specified folder from the memory device at
“GET_DIRECT” and read folder information using
“READ_FOLDER_INFO”.
Table VI.4.3.1 shows the status register structure.
Table VI.4.3.1 Folder Information Register Structure
Status
OFFSET
Folder information
0x20-0x25 Access data [6 bytes]
0x26-0x27 Reserve [2 bytes]
0x28-0x2B Cluster number [4 bytes]
0x2C-0x6B Folder name [64 bytes]
i.
Access data
: Shows the position where the folder information is written in the memory.
ii.
Reserve
: All
“0s” are output.
iii.
Cluster number : Shows the cluster number where the folder information is written in the memory.
iv.
Folder name
: Outputs the folder name from the leftmost position.
(2) File information
When the folder is specified using
“SET_DIRECT”, the LSI allows you to fetch the file information in the
specified folder from the memory device at
“GET_DIRECT” and read file information using
“READ_FILE_INFO”.
Table VI.4.3.2 shows the status register structure.
Table VI.4.3.2 File Information Register Structure
Status
OFFSET
File information
0x20-0x25 Access data [6 bytes]
0x26
Judge WMA file[1 bytes]
0x27
Reserve [1bytes]
0x28-0x2B Cluster number [4 bytes]
0x2C-0x6B File name [64 bytes]
i.
Access data
: Shows the position where the file information is written in the memory.
ii.
Judge WMA file : Output
“0” when play MP3 file, output “1” when play WMA file, output “2” when play
AAC file.
iii.
Reserve
: All
“0s” are output.
iv.
Cluster number : Shows the cluster number where the file information is written in the memory.
v.
File name
: Outputs the file name from the leftmost position.
VI. 4.4 Language Code Information
This LSI outputs Language Code Information to Status register. (OFFSET=0x1C and 0x1D)
See Chapter
VI. 3.5.
