BU94603KV-E2 ROHM Semiconductor, BU94603KV-E2 Datasheet - Page 56

• Manufacturer Part Number: BU94603KV-E2
• Description: Interface - CODECs USB HOST MP3 DECODER
• Manufacturer: ROHM Semiconductor
• Type: USB Audio Decoderr

Specifications of BU94603KV-E2

• Rohs: yes
• Conversion Rate: 48 kSPs
• Interface Type: I2C
• Number Of Dacs: 3
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: VQFP-64
• Minimum Operating Temperature: - 40 C
• Snr: 96 dB
• Supply Current: 65 mA
• Thd Plus Noise: 0.02 %

© 2012 ROHM Co., Ltd. All rights reserved.
BU94603KV
www.rohm.com
VII.4.3 Folder information/File information
VII.4.4 Language Code Information
This LSI outputs Language Code Information to Status register. (OFFSET=0x1C and 0x1D)
See Chapter VII.3.5.
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 VII.4.3.1 shows the status register structure.
(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 VII.4.3.2 shows the status register structure.
i.
ii.
iii.
iv.
i.
ii.
iii.
iv.
v.
Access data
Reserve
Cluster number : Shows the cluster number where the folder information is written in the memory.
Folder name
Access data
Judge WMA file : Output “0” when play MP3 file, output “1” when play WMA file, output “2” when play AAC file.
Reserve
Cluster number : Shows the cluster number where the file information is written in the memory.
File name
: Shows the position where the folder information is written in the memory.
: Outputs the folder name from the leftmost position.
: Shows the position where the file information is written in the memory.
: All “0s” are output.
: All “0s” are output.
: Outputs the file name from the leftmost position.
Table VII.4.3.1 Folder Information Register Structure
Table VII.4.3.2 File Information Register Structure
0x2C-0x6B File name [64 bytes]
0x2C-0x6B Folder name [64 bytes]
0x28-0x2B Cluster number [4 bytes]
0x28-0x2B Cluster number [4 bytes]
0x20-0x25 Access data [6 bytes]
0x20-0x25
0x26-0x27
OFFSET
OFFSET
Status
Status
0x26
0x27
Judge WMA file[1 bytes]
Reserve [1bytes]
Access data [6 bytes]
Reserve [2 bytes]
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Folder information
File information
Technical Note
2012.07 - Rev.B