BU94601KV_12 Datasheet, PDF (44/70 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card + iPod

BU94601KV BU94603KV BU94604BKV
Datasheet
Table 15. MODE2 Status Output Commands
Command name
Command
Status output
1st byte 2nd byte
bytes
Status
· The command outputs the desired bytes
of data from the OFFSET position
READ_BUFF
0x5E
OFFSET
Optional
specified in the status register map.
· Since the status register functions as a
ring buffer of 0x00-0x7F, the master
returns to 0x00 after OFFSET position
0x7F during data read.
READ_STATUS
0x00
· This command outputs the data of
5
OFFSET 0x00-0x04 in the status buffer.
READ_PLAY_INFO
0x01
6
· This command outputs the data of
OFFSET 0x0A-0x0F in the status buffer.
READ_VOL
0x02
· This command outputs the data of
1
OFFSET 0x05 in the status buffer.
READ_EQ
0x03
1
· This command outputs the data of
OFFSET 0x06 in the status buffer.
READ_ID3_TITLE
0x04
· This command outputs the data of
64
Tag Title. *1
READ_ID3_ARTIST
0x05
64
· This command outputs the data of
Tag Artist.*1
READ_ID3_ALBUM
0x06
64
· This command outputs the data of
Tag Album.*1
READ_FILE_NAME
0x07
64
· This command outputs the data of
playing file name. see 20.4
READ_FOLDER_NAME
0x08
· This command outputs the data of
64
folder name includes playing file. see
20.4
READ_RESUME_INFO
* See Chapter 22.4.
0x09
· This command outputs the data to
42
resume.
see 22.4
READ_VERSION
0x5F
0x10
1
· This command outputs the data of
Firmware version.
· The size of a specified file of the File
Read function is acquired. It outputs
READ_FILE_SIZE
0x11
4
with LittleEndian.
· When the file doesn't exist, "0xFF, 0xFF,
0xFF, and 0xFF" is output.
· The file data of a specified file of the File
Read function is read.
READ_FILE_DATA
0x12
96
· The 92byte data reading is possible
by one time.
· Four head bytes are file offsets. It
outputs it with LittleEndian.
· In case of AUTO detection mode of
LUN,LUN of mounted USB memory can
be read.
· If LUN is specified using the "SET_LUN"
command, specified LUN of mounted
READ_LUN
0ｘ17
1
USB memory can be read. But if failed
to mount, 0xFF is read.
· Attention) When memory connected to
multi-card reader is removed or
re-inserted, LUN read by this command
is NOT correct until mount of re-inserted
media is completed.
READ_LUN_NUM
0ｘ18
1
· Read the total of LUN of the USB
memory which is connected now.
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
44/66
TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001