BU94601KV_12 Datasheet, PDF (24/70 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card + iPod

BU94601KV BU94603KV BU94604BKV
Datasheet
17. BUSY
BUSY state detection output
Signal name I/O
Function
Remarks
BUSY
O
BUSY state detection output
signal
H: Busy, L: Not Busy
This signal outputs to indicate that this LSI is in BUSY.
BUSY signal analyzes commands from the master and outputs H until the operation is executed.
This LSI ignores command input during BUSY. However, only the ABORT and STOP commands can be
accepted even during BUSY, which can be executed. *See Chapter 11.
18. IRPTO
CONFIG outputs it for two more device connection state detection.
Signal name I/O
Function
Remarks
IRPTO
USB CONFIG outputs it for two
O more device connection state H: Detection
detection.
, L: Undetection.
When the USB device is chosen, output it to show that the USB device that two USB CONFIGURATION
DESCRIPTOR or more has in this LSI is connected. The timing of an output is dependent on the connected USB
device.
19. TEST terminal
By the terminal setting of TEST15, TEST16 and TEST17, It is possible to following function.
TEST15 TEST16 TEST17
Function
H
H
H
Full function effective
L
L
L
Only WMA and MP3 can play-back. The AAC file is disregarded. *1
H
L
L
The IRPTO function is invalidated. *2
*1 Except for BU94601KV
*2 Only BU94604BKV
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2012.07.12 Rev.001