BU94601KV_12 Datasheet, PDF (30/70 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card + iPod

BU94601KV BU94603KV BU94604BKV
Datasheet
21.1.3 KEY operation
Table 9. shows the types and operations of KEYs.
Table 10. shows enabled/disabled states of KEY operations.
Table 9. KEY Commands and Operation Description
KEY COMMAND
PLAY/PAUSE
STOP
OPERATION DESCRIPTION
· When receiving “PLAY/PAUSE” key during stop, the master starts playing the first MP3 file
sorted to the recognized device.
· When receiving “PLAY/PAUSE” key during play, the master stops playing the MP3 file
temporarily. When receiving PLAY/PAUSE key again, the master restarts playing the file.
· When receiving “STOP” key during play, pause or file search, the master stops playing,
pausing or searching the MP3 file.
FF
FB
FOL+
FOL-
+10
VOL+/VOL-
· When receiving “FF” KEY (Single Mode) during play or pause, the master searches the next
supported file in the order of sort of files being played or paused. Upon completion of
searching, the master starts playing the file.
· During play of the last file, the master returns to the first file in the order of sort and plays the
file.
· When receiving “FF” KEY (Hold Mode) during play or pause, the master starts fast forward
playing the file. When "FF" KEY release is detected, the master return to normal playing.
· When music finishes into "FF" KEY (Hold Mode), the master starts fast forward playing from
top of the next file. However, when selecting “REPEAT” or “RANDOM”, master search next
file by setup.
· When receiving “FB” KEY (Single Mode) during play or pause, the master searches the
previous supported file in the order of sort of files being played or paused. Upon
completion of searching, the master starts playing the file.
· During play of the first file, the master plays the last file in the order of sort.
· When receiving "FB" KEY within 1sec from top of file playing, the master searches the
previous supported file in the order of sort of files being played. Upon completion of
searching, the master starts playing the file. When receiving "FB" KEY over 1sec from top of
file playing, the master starts playing from top of the file.
· When receiving “FB” KEY (Hold Mode) during play or pause, the master starts fast
backward playing the file. When "FB" KEY release is detected, the master return to normal
playing.
· When music finishes into "FB" KEY (Hold Mode), the master starts fast backward playing
from end of the previous file. However, when selecting “REPEAT” or “RANDOM”, master
search previous file by setup.
· When receiving “FOL+” KEY during play or pause, the master searches the supported files
in the next folder in the order of sort of the folder in which the file being played or paused
exists. Upon completion of search, the master plays the file.
· During play of the file in the last folder in the order of sort, the master plays the first file in
the order of sort.
· When receiving “FOL-“ KEY during play or pause, the master searches the supported files
in the next folder in the order of sort of the folder in which the file being played or paused
exists. Upon completion of search, the master plays the file.
· During play of the file in the first folder in the order of sort, the master plays the first file in
the order of sort in the last folder.
· When receiving “+10” KEY during play or pause, the master searches supported files 10
files next to the current one in the order of sort of the file being played or paused. Upon
completion of search, the master starts playing the file.
· When the remaining files are less than 10 during play of the current file, the master plays
the first file.
· When receiving “VOL+/VOL-“ KEY while SEL_VOL terminal is set to H, the master controls
sound volume.
· Sound volume can be controlled at 32 steps from -∞ (minimum volume) to 0dB (maximum
volume).
· Since VOL+/VOL- KEY does not judge release of KEY, the master turns up or down volume
step by step when determining press of the KEY. Therefore, VOL KEY can be held down.
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2012.07.12 Rev.001