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Pin
Port Name
Description
No
65
P22/A2/A18
CD_CLOSE_SW
66
P23/A3/A19
NC
67
P24/A4/A20
CD_LIMIT_SW
68
P25/A5/A21
POWER_H
69
P26/A6/A22
F_MUTE
70
P27/A7/A23
NC
71
P30/RD
AK_RESET
72
P31/WR
AK_CS
73
P32/HWR
AK_CCLK
74
P33/WAIT
AK_COTI
75
P34/BUSRQ
N.C
76
P35/BUSAK
N.C
77
P36/R/W
DAB_CLK
78
P37/BOOT
BOOT_MODE
79
P40/CS0
NC
80
P41/CS1
DAB_DAO
81
P42/CS2
N.C
82
P43/CS3
SPDIP_ON
83
P60/SCK
PLL_CE
84
P61/SO/SDA
P/F_CLK
85
P62/SI/SCL
P/F_DATA
86
P63/INT0
PLL_DI
87
P64/SCOUT
TUNED_IN
88
P65
STEREO_IN
89
DVCC
MCU +3.3V
90
P66
NC
91
DVSS
GND
92
P50/AN0
KEY0
93
P51/AN1
KEY1
94
P52/AN2
NC
95
P53/AN3/ADTRG
VOL-
96
P54/AN4
VOL+
97
P55/AN5
POWER_PROT
98
P56/AN6
NC
99
P57/AN7
OPTION
100
VREFH
MCU +3.3V
I/O
Use
Pull-up
I/O
I
O
I/O
O
X
I/O
I
O
I/O
O
X
I/O
O
X
I/O
O
X
O
O
X
O
O
X
I/O
O
X
I/O
O
X
I/O
O
X
I/O
O
X
I/O
O
X
I/O
I
O
I/O
O
X
I/O
O
X
I/O
O
X
I/O
O
X
I/O
O
X
I/O
O
X
I/O
O
X
I/O
I
X
I/O
I
O
I/O
I
O
I/O
O
X
I
I
O
I
I
O
I
I
O
I
I
O
I
I
O
I
I
X
I
I
O
I
I
O
42
RCD-M37 / RCD-M37DAB / D-E500 / D-M37
Status
NoUse
Init
Stby
Act.
I
O
L
I
-
-
I
O
L
I
L
H
I
H
H
OPEN
I
O
L
L
O
L
-
I
L
-
I
L
-
I
L
-
I
L
-
I
L
-
I
-
-
I
-
-
I
L
-
I
L
-
I
-
L
I
L
-
I
L
-
I
L
-
I
-
-
I
-
L
I
-
L
OPEN
I
I
-
-
I
-
-
I
-
-
I
-
-
I
-
-
I
H
I
I
-
-
Note
cd close switch
cd inner switch
Main power on
function mute
ak DAC reset
ak DAC chip select
ak DAC clock
ak DAC data
DAB clock
update mode select
DAB out data
tuner PLL IC enable
tuner PLL IC clock
tuner PLL IC data
tuner PLL IC data input
tuned in
stereo in
MCU power
GND
key0 input
key1 input
volume encoder sw1
volume encoder sw2
voltage protect
Version Option
vfd operate
- Quick Links:
- Troubleshooting
- Dab Tuner-In
- Wiring Diagram
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