BU94601KV_12 Datasheet, PDF (56/70 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card + iPod

BU94601KV BU94603KV BU94604BKV
Datasheet
23.2 Status output
The LSI outputs the operation information, such as internal status, play time information, folder information, file
information ID3Tag information, AACTag information, and WMATag information, using the I²C interface.
The statuses as shown in Table 21. MODE3 status register map are output. There are two methods available:
to read a desired number of bytes continuously from the OFFSET position and to read the data by one command
without specifying the OFFSET position. Figure 23. shows the status output commands.
Table 23 shows the enabled/disabled state of the status commands.
The status register has a ring buffer structure of OFFSET 0x00-0x7F. The OFFSET position is automatically
incremented after reading byte data.
Status register outputs a byte data of OFFSET 0x00-0x7F by "Little Endian" format. (Exception exists when
using READ_ID3_TITLE, READ_ID3_ARTIST, and READ_ID3_ALBUM command. See Table 22. MODE3 Status
Output Commands)
Table 21. MODE3 Status Output
Offset Status
bit7
(MSB)
bit6
bit5
bit4
bit3
bit2
bit1
bit0
(LSB)
ERROR
SEARCH
0x00 STATUS1 0: No error 0: Search stop
0
1: Error occurs ^{1: Searching}
DEC_ERR
STOP
PAUSE
Play
0
0: No error
0: Not stopped 0: Not paused 0: Not played
1: Error occurs 1. Stopping
1: Pausing
1: Playing
0x01
0x02
0x03
0x04
0x05
0x06
STATUS2
USBINS
0: USB not
connected
1: USB
connection
detected
SDINS
0: SD not
connected
1: SD connection
detected
USBFILE
Playable file
within USB
memory
0: Absent
1: Present
PDEVUSB
PDEVSD
SDFILE
MDEVUSB
MDEVSD PDEVUSB USB PDEVUSB SD
Playable file within
USB memory
SD memory
memory
memory
SD memory
0: Not recognized 0: Not recognized 0: Stopping
0: Stopping
0: Absent
1: Recognized 1: Recognized 1: Playing/ID3Tag 1: Playing/ID3Tag
1: Present
analyzing
analyzing
MCHNG
BUSY
Tune number
Command
STATUS3
Busy
change detection
0
0: Tune
0: Not BUSY
ended/stopped
1: BUSY
1: Playing
ID3EXIST
ID3RSID1
ID3RSID2
TAG information ID3Tag Version1 ID3Tag Version2
0
0: Not exist
0: Absent
0: Absent
1. Exist
1: Present
1: Present
FOLINF
ANAEND
FOLFULL
FILEINF
FILEFULL
Folder
STATUS4 ^{0: Analyzing}
information
Folder buffer Folder information Folder buffer
0
0
1: Analysis
0: Not FULL
0: Absent
0: Not FULL
0: Absent
completed
1: FULL
1: Present
1: FULL
1: Present
12MOUT
WMAPLAY
FBP
FFP
12 MHz clock
STATUS5 output
WDT_RFLG
Play file information
Fast backward Fast forward
0: MP3
playing
playing
0
0: OFF
0:after RESET
1: WMA , 2: AAC
0: OFF
0: OFF
1: ON
3:Device with 2 configurations or more
1: ON
1: ON
VOLINF
0
0
0
VOLINF
Sound volume information
[ 4: 0 ]
0
0
RES_ERR
Resume error
0: No error
1: Error occurs
EQINF
EQINF
Equalizer setting information
0000: OFF
0001: POPS
0010: JAZZ
0011: ROCK
0100: CLASSIC
0101: R&B
1000: BASS BOOST
1001: POPS+BASS
1010: JAZZ+BASS
1011: ROCK+BASS
1100: CLASSIC+BASS
1101: R&B+BASS
1111 BASS BOOST2
0
0
0
0
0x07 PRECOM
PRECOM
Previous Command information
0: normal
1: miss
Vendor code
HUB
Un Support
Detection Flag
0x08
DOUT
Detection Flag
device
0: Not
Detection Flag
0: Apple Not
Detection
0
Detection 0: Not Detection
1: Apple
1: Detection 1: Detection
Detection
0
0
DOUT
Audio output
0
0: LINE output
1: I2S / SPDIF
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2012.07.12 Rev.001