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MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No.
Pin Name
82~88
N.C
89
KEY-REQ
90~92
N.C
93
S-METER
94
NOISE
95
N.C
96
AVSS
97
N.C
98
VREF
99
AVCC
100
REFCON
Truth Value Table q
PS1-0
PS1-1
L
L
H (L)
L (H)
H
H
H
H
Truth Value Table w
PS2-0
PS2-1
L
L
H(L)
L(H)
H
H
Truth Value Table e
MODEL
DESTINATION
KDC-5027
E
KDC-5027Y
E2
KDC-508
E
KDC-3025
K
KDC-325
K
KDC-5026
M (K)
KDC-5026G
M (K)
I/O
Application
O
OPEN (Output L fixed)
I
Communication request from LCD driver
O
OPEN (Output L fixed)
I
S-meter voltage input
I
FM noise detection
O
OPEN (Output L fixed)
-
GND
O
OPEN (Output L fixed)
I
Reference voltage input
-
5V
O
VREF control
PS1-2
AUDIO
L
OFF
L
ON
L
ON
H
ON
ILLUMI
FM+B
OFF
OFF
ON
ON
ON
OFF
TYPE
0
1
L
L
L
L
L
L
H
L
H
L
H
H
H
H
KDC-3025/325/5026/G
Truth Value
Table
L : Key input detect
Connect to 100 pin
While power ON : H
P-CON
P-ANT
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
AM+B
OFF
OFF
ON
2
H
H
H
H
H
H
H
Processing Operation Description
7
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