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P
o
t r
N
a
m
e
Description
No
71 P30/RD
N.C
72 P31/WR
N.C
73 P32/HWR
EEPROM_DATA
74 P33/WAIT
EEPROM_CLK
75 P34/BUSRQ
DAB_SYS_RST
76 P35/BUSAK
N.C
77 P36/R/W
N.C
78 P37/BOOT
BOOT_MODE
79 P40/CS0
N.C
80 P41/CS1
N.C
81 P42/CS2
RDS_DATA
82 P43/CS3
PLL_CE
83 P60/SCK
PLL_CLK
84 P61/SO/SDA
PLL_DOUT
85 P62/SI/SCL
PLL_DINI/O
86 P63/INT0
T_MUTE
87 P64/SCOUT
TUNED_IN
88 P65
STEREO_IN
8
9
D
V
C
C
M
C
U
90 P66
N.C
9
1
D
V
S
S
G
N
D
92 P50/AN0
KEY0
93 P51/AN1
KEY1
94 P52/AN2
N.C
95 P53/AN3/ADTRG
SCROL_UP
96 P54/AN4
SCROL_DWN
97 P55/AN5
V_PROTECT
98 P56/AN6
N.C
99 P57/AN7
OPTION
100 VREFH
MCU +3.3V
CX-225iDAB/MC-DX450iDAB
Use
/ I
O
ON
Pull-up NoUse init
I/O
X
I/O
X
I/O
O
O
I/O
O
O
I/O
O
O
I/O
I
O
I/O
X
OPEN
I/O
O
O
I/O
X
OPEN
I/O
X
OPEN
I/O
I
X
I/O
O
X
I/O
O
X
I/O
O
X
I
X
I/O
I
O
I/O
I
O
I/O
I
O
+
3
3 .
V
I/O
X
I
I
O
I
I
O
I
I
O
I
I
O
I
I
O
I
I
O
I
O
I
I
O
Status
stby Act.
OPEN
OPEN
I
-
-
EEPROM DATA
I
-
-
EEPROM CLOCK
DAB system reset(Does not use)
I
-
-
I
-
-
I
H
L
update mode select
tuner RDS data input
I
-
-
I
-
-
tuner PLL ic enable
I
-
-
tuner PLL IC clock
I
-
-
tuner PLL IC data out
I
-
-
tuner PLL IC data input
I
-
-
tuner PLL IC mute
I
-
L
tuned in
I
-
L
stereo in
M
C
U
p
OPEN
I
G
N
D
I
-
-
key0 input
I
-
-
key1 input
I
-
-
I
-
-
Scrol up
I
-
-
scrol down
I
-
-
voltage protect
I
-
-
Version Option
ADC Reference HIGH( VCC )
Note
o
w
r e
5
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