9
KDC-W4031/W4031Y/W409/W409Y
KDC-W431GY/W4531/W4531Y/WF431A
Pin No.
Active
Pin Name
I/O
Application
Processing Operation
(H/L)
50
FLAGIN
I
C2Err impossibility detection.
L : Correction is possible.
H : Correction is impossible.
51~61
NC
-
62
DVSS
-
GND.
63
L
NMI
I
Non-maskable interrupt request.
64
DVCC
-
Power supply terminal.
65~77
NC
-
78
NC/BOOT
I
Mask : Not connected. Flash : For writing (Active “L”).
L : Write, H : Nomal condition
79,80
NC
-
81
POND3.3
O
Digital 3.3V power-on control terminal.
H : POWER ON
82
L
MUTEL
O
Lch audio mute control.
83
L
MUTER
O
Rch audio mute control.
84
SDA
I/O
I2C data (Main
µ
-com).
85
SCL
I/O
I2C clock (Main
µ
-com).
86
L
MSTOP
I
Stand-by comeback interrupt.
L : Stop, H : Stop is released.
87
NC
-
88
L
DMUTE
O
Driver mute.
L : MUTE ON, H : MUTE OFF
89
DVCC
-
Power supply terminal.
90
NC
-
91
DVSS
-
GND.
92,93
NC
-
GND.
94
MSEL
I
Memory capacity switching terminal.
H : Capacity size down, L : Capacity size up
95
NC
-
GND.
96
ASEL
I
Audio output polarity switch.
H : Reverse output, L : Non-reverse output
97
CHSEL
I
Changer destination terminal.
H : Changer, L : Other source
98
SEL0
I
µ
-com destination terminal 0.
99
SEL1
I
µ
-com destination terminal 1.
100
VREFH
I
Reference power supply input terminal for ADC (H).
Back-up 3.3V
MICROCOMPUTER’S TERMINAL DESCRIPTION
