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P i n
Port Name
No
PI4/TB4OUT
52
PI5/TB5OUT
53
PB0/TDO/SWV
54
PA0/TMS/SWDIO
55
PA1/TCK/SWCLK
56
TEST3
57
PJ7/INT7
58
PB1/TDI
59
PB2/TRST
60
PF3/RXIN1
61
62
DVCC
63
DVSS
PA2/TRACECLK
64
PA3/TRACEDATA0
65
PA4/TRACEDATA1
66
PA5/TRACEDATA2
67
PA6/TRACEDATA3
68
69
PA7
PJ0/INT0
70
71
CVCC
X2
72
73
CVSS
X1
74
REGVSS
75
REGVCC
76
XT1
77
XT2
78
PI6/TB4IN0
79
80
NMI
MODE
81
RESET
82
PI7/TB4IN1
83
PH6/TB3IN0
84
PH7/TB3IN1
85
PJ2/INT2
86
PJ3/INT3
87
PJ4/TB6OUT
88
PE3/RXIN0
89
TEST4
90
91
PC0/AN0
92
PC1/AN1
93
PC2/AN2
94
PC3/AN3
95
PD0/AN4
96
PD1/AN5
Port
DCD-720AE
use
CD_BUCK
PI4
CD_CCE
PI5
DEBUG
DEBUG
DEBUG
TEST pin, Set to OPEN.
CD_DSP_RST
PJ7
DEBUG
DEBUG
N.C
-
Power supply pin
GND pin
LED_RED
N.C
LED_GREEN
N.C
VFD_RST
PA4
VFD_DI
PA5
VFD_CS
PA6
VFD_CLK
PA7
INT0 EX_INTERRUT
Power supply pin
high-speed
oscillator(Output)
GND pin
high-speed
oscillator(Input)
GND pin
Power supply pin
low-speed
oscillator(Input)
low-speed
oscillator(Output)
N.C
-
Non-maskable interrupt
Mode pin, Set to DVSS
Reset input pin
EEPROM_SCL
PI7
EEPROM_SDA
PH6
POWER_H
N.C
INT2 POWER_DOWN
N.C
-
N.C
-
N.C
-
TEST pin, Set to OPEN.
KEY0
AN0
KEY1
N.C
N.C
-
N.C
-
N.C
-
Version Option.
AN5
I/O
use
NoUse init. stby Act.
I/O
O
L
L
I/O
O
L
L
I/O
O
OPEN
I/O
O
OPEN
I/O
OPEN
OPEN
I/O
O
L
L
I/O
O
OPEN
I/O
O
OPEN
I/O
O
OPEN
P
P
G
G
I/O
O
H
H
I/O
O
H
H
I/O
O
L
L
I/O
O
L
L
I/O
O
L
L
I/O
O
L
L
I/O
I
-
H
P
P
G
G
G
G
P
P
I/O
O
OPEN
P
P
G
G
I
I
I
I/O
O
L
-
I/O
I/O
L
-
I/O
O
L
L
I/O
I
H
H
I/O
O
OPEN
I/O
O
OPEN
I/O
O
OPEN
OPEN
I
I
-
-
I
I
-
-
OPEN
I
I
OPEN
I
I
OPEN
I
I
I
I
-
-
72
Note
communication clock with CD
-
DSP
communication chip enable with
-
CD DSP
C D D S P r e s e t
, L : : R e s e t
L
Init&Stby:L
ST LED(RED) Control "L" ON
L
Power LED (GRREN) Control "L"
L
ON
vfd reset Reset:L , Init&Stby:L
L
-
vfd data
L
vfd chip select
-
vfd clock
External Interrupt Key
L
oscillator(10MHz)
GND
oscillator(10MHz)
Open
Open
3.3V
GND
MCU RESET
L
EEPROM clock
-
EEPROM data
-
H
RL91 Control
L
Power down
Key0 input
-
Key0 input
-
10K Pull Down
10K Pull Down
10K Pull Down
Version Option
-
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