BU94601KV_12 Datasheet, PDF (25/70 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card + iPod

BU94601KV BU94603KV BU94604BKV
Datasheet
20. File detection
20.1 Function
· This function supports FAT16 and FAT32 file systems.
· The maximum number of playable files per folder
(It does not support NTFS and FAT12.)
Table 7. Maximum Number of Playable Files
FAT16
FAT32
Root folder
512
65535
Sub folder
65534
65534
The number of files described above contains unsupported files and folders. If unsupported files and folders exit
within the folder and exceed the maximum number, all the supported files may not be played.
· Files less than 100 can be sorted by UNICODE in the FAT order within the folder. Files over 100 are sorted
in the FAT order. Also, the folders can be sorted in the same manner and those over 100 are sorted in the
FAT order.
· The searchable folder hierarchy is of 8 layers containing the root folder. Figure 23 shows an example of
memory layers.
USB
Memory
Folder
Folder
Playable layers
Folder
File
File
Folder
File
Folder
Folder
Folder
File
Folder Folder
Folder
File
File
Folder
File
File File
File
Folder Folder
Folder
File
File
File
File
File
Folder
File
File
File
Folder
File
File
File
Unplayable layers
Figure 23 Example of Memory Layers
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© 2012 ROHM Co., Ltd. All rights reserved.
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2012.07.12 Rev.001