BU94603KV Functional Specifications
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Target Spec 0.12
V. I/O Signal Specifications
V.1 Clock and reset
Clock
Signal name I/O
Function
Remarks
XIN_PLL
I
X
’tal (16.9344 MHz) connection
input terminal
XOUT_PLL
O
X
’tal (16.9344 MHz) connection
terminal
Reset
Signal name I/O
Function
Remarks
RESETX
I System reset input terminal
To disable a reset signal, continue L input for more than 5 us after clock input from the oscillation I/O terminal
becomes stable. (See Figure V.1.)
Figure V.1 Reset Timing
Item
Symbol
Specification
Unit
Remarks
min
typ
max
Clock frequency
f
CLK
16.8921
16.9344
16.9767
MHz
Reset L interval
t
RSTX
5
-
-
us
V.2 SEL_SLAVE
MODE1/MODE2, 3 selection input signal
Signal name I/O
Function
Remarks
SEL_SLAVE
I Selects MODE1 or MODE2, 3.
H: MODE1, L: MODE2, 3
SEL_SLAVE selects MODE1 (STAND ALONE MODE) or MODE 2/3 (SLAVE MODE).
By selecting SEL_SLAVE, SLAVE mode terminal setting shown in Table II.2 is enabled.
SEL_SLAVE is set only at power ON. Note that change of selection after power ON is ignored.
V.3 SEL_MP3
MPEG Audio Layer 1, 2, 3 play selection signal
Signal name I/O
Function
Remarks
SEL_MP3
I MPEG Audio Layer selection
H: Can play MP3 only. L: Can play MP1, MP2 and
MP3.
SEL_MP3 allows you to select the layer of the MPEG audio to be played. When enabling all the files
having mp1, mp2 or mp3 as the file extension to be played, enter L. When enabling mp3 only, enter H.
SEL_MP3 is set only at power ON. Note that change of election after power ON is ignored.
Oscillation stabilization
standby time
f
clk
t
RSTX
Power
supply
XIN_PLL
RESETX
