SC9822P

HANGZHOU SILAN MICROELECTRONICS CO.,LTD

REV:1.0

2006.07.21

Http: www.silan.com.cn

Page 14 of 30

3. CDFS Tables

CDFS Table impropriate 351page

351*256*16bit

, the default address is the highest part of external RAM,

0xxEA0-0xxFFF(Page address), the following figure is the configuration in the RAM:

If RAM is 1M*16bit, z is 0; if RAM is 2M*16bit, z is 1; if RAM is 4M*16bit, z is 3; if RAM is 8M*16bit, z is 7; if

RAM is 16M*16bit, z is F.

File configuration:

Address

Contents

Introduction Table (1 page)

0xxEA000(16bit)

Total folder number in CD

0xxEA001(16bit)

Total mp3 file in CD

0xxEA002(16bit)

Total mp3 folder in CD

0xxEA003(16bit)

The folder no. of the first mp3 file

0xxEA004(16bit)

Including mp3 file number

Directory Table(4 pages (each folder)

8bit

The start folder no. of this directory

8bit

The folder number of this directory

16bit

The started mp3 file no. of this directory

16bit

Total Mp3 file number of this directory

8bit

Parent directory no.

8bit

Folder name length

File Table (32 pages) (each file)

32bit

M.S.F information of Mp3 file

32bit

The size of Mp3 file

16bit

The length of Mp3 file name

16bit

Mp3 file type

32bit

Reserved

Directory Identifier Table (64 pages)

128Byte

Folder name

File Identifier Table (250 pages)

128Byte

Mp3 file name

Maximum file number is 1024, and the maximum folder number is 256 supported.