BU94603KV Functional Specifications
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Target Spec 0.12
VI.4.2 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 VI.4.2.1 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 VI.4.2.2 shows the status output commands.
Table VI.4.2.3 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
Table IV.4.2.1 MODE3 Status Output
Offset
Status
bit7
(MSB)
bit6
bit5
bit4
bit3
bit2
bit1
bit0
(LSB)
0x00
STATUS1
ERROR
0: No error
1: Error occurs
SEARCH
0: Search stop
1: Searching
0
0
DEC_ERR
0: No error
1: Error occurs
STOP
0: Not stopped
1. Stopping
PAUSE
0: Not paused
1: Pausing
Play
0: Not played
1: Playing
0x01
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
SDFILE
Playable file within
SD memory
0: Absent
1: Present
MDEVUSB
USB memory
0: Not recognized
1: Recognized
MDEVSD
SD memory
0: Not recognized
1: Recognized
PDEVUSB
PDEVUSB USB
memory
0: Stopping
1: Playing/ID3Tag
analyzing
PDEVSD
PDEVUSB SD
memory
0: Stopping
1: Playing/ID3Tag
analyzing
0x02
STATUS3
BUSY
Command
Busy
0: Not BUSY
1: BUSY
MCHNG
Tune number
change detection
0: Tune
ended/stopped
1: Playing
0
ID3EXIST
TAG information
0: Not exist
1. Exist
ID3RSID1
ID3Tag Version1
0: Absent
1: Present
ID3RSID2
ID3Tag Version2
0: Absent
1: Present
0
0
0x03
STATUS4
ANAEND
0: Analyzing
1: Analysis
completed
FOLINF
Folder
information
0: Absent
1: Present
FOLFULL
Folder buffer
0: Not FULL
1: FULL
FILEINF
Folder information
0: Absent
1: Present
FILEFULL
Folder buffer
0: Not FULL
1: FULL
0
0
0
0x04
STATUS5
12MOUT
12 MHz clock
output
0: OFF
1: ON
WDT_RFLG
0:after RESET
WMAPLAY
Play file information
0: MP3
1: WMA, 2: AAC
FBP
Fast backward
playing
0: OFF
1: ON
FFP
Fast forward
playing
0: OFF
1: ON
0
RES_ERR
Resume error
0: No error
1: Error occurs
0x05
VOLINF
0
0
0
VOLINF
Sound volume information
[ 4: 0 ]
0x06
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: BASS
1101: R&B+BASS
1111 BASS BOOST2
0
0
0
0
0x07
PRECOM
PRECOM
Previous Command information
0: normal
1: miss
0x08
DOUT
HUB
Detection Flag
0: Not
Detection
1: Detection
Un Support
device
Detection Flag
0: Not Detection
1: Detection
Vendor code
Detection Flag
0:
apple
Not
Detection
1:
apple
Detection
0
0
0
0
DOUT
Audio output
0: LINE output
1: I2S / SPDIF