BU94601KV_12 Datasheet, PDF (42/70 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card + iPod

BU94601KV BU94603KV BU94604BKV
Datasheet
22.2 Status output
The operation information, such as internal status, play time information, folder information, file information,
ID3Tag information, AACTag information and WMATag information, is output using an I²C interface.
Statuses as shown in Table 14. MODE 2 Status Register Map are output.
The status register has a ring buffer structure of OFFSET 0x00-0x7F. The OFFSET position is automatically
incremented after reading byte data.
Status read specifies OFFSET of the status register map. 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 15. shows the status output commands. Table 16. shows the
enabled/disabled state of the status output commands.
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 15. MODE2
Status Output Commands)
Table 14. MODE2 Status Register Map
OFFSET Status
bit7
(MSB)
bit6
0x00
STATUS1
ERROR
0: No error
1: Error occurs
SEARCH
0: Search stop
1: Searching
bit5
SEL_ID3
0: ID3Tag OFF
1: ID3Tag ON
bit4
bit3
bit2
bit1
bit0
(LSB)
SEL_TOC
DEC_ERR
STOP
PAUSE
0: TOC display
OFF
0: No error 0: Not stopped 0: Not paused
1: TOC display ON ^{1: Error occurs 1. Stopping}
1: Pausing
Play
0: Not played
1: Playing
0x01
0x02
0x03
0x04
0x05
STATUS2
STATUS3
STATUS4
STATUS5
VOLINF
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
MDEVUSB MDEVSD
PDEVUSB
PDEVSD
Playable file within USB memory
SD memory
PDEVUSB USB PDEVUSB SD
memory
memory
SD memory
0: Absent
0: Not
0: Not
recognized recognized
0: Stopping
0: Stopping
1: Present
1: Recognized 1: Recognized
1: Playing/Tag
analyzing
1: Playing/Tag
analyzing
BUSY
0: Not BUSY
1: BUSY
0
12MOUT
12 MHz clock
output
0: OFF
1: ON
0
MCHNG
Tune number
change detection
0: Tune
ended/stopped
1: Playing/
stop before
playing
0
WDT_RFLG
0: after RESET
0
TINFUSB
TINFSD
ID3EXIST
ID3RSID1
ID3RSID2
Total number of
Total number
of folders/files
0
TAG information
ID3Tag
Version1
ID3Tag
Version2
folders/files
within USB
within SD
0: Not exist
1: Exist
0: Absent
0: Absent
memory
memory
0: Not
1: Present
1: Present 0: Not obtained
1: Obtained
obtained
1: Obtained
RPT_OFF RANDOM
REP1
REPFOL
Setting after Random play One-tune repeat Folder repeat
0
0
last file playing setting
setting
setting
0: repeat
0: OFF
0: OFF
0: OFF
1: stop
1: ON
1: ON
1: ON
WMAPLAY
Play file information *
0: MP3
1: WMA , 2: AAC
3:Device with 2 configurations or more
FBP
FFP
Fast backward Fast forward
playing
playing
0: OFF
0: OFF
1: ON
1: ON
RES_ERR
Resume error
0
0: No error
1: Error
occurs
VOLINF
0
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: CLASSIC+BASS
1101: R&B+BASS
1111 BASS BOOST2
0
0
0x07 PRECOM
PRECOM
Previous Command information
0: normal
1: miss
HUB
Un Support device Vendor code
0x08
DOUT
Detection Flag Detection Flag Detection Flag
0
0: Not Detection 0: Not Detection 0: Apple Not Detection
1: Detection
1: Detection
1: Apple Detection
0
0
0
0
DOUT
0
Audio output
0: LINE output
1: I2S / SPDIF
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2012.07.12 Rev.001