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MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No.
Pin Name
I/O
51
P-CON
O
Power control output
CH-RECH
52
O
Request output to changers
53
CH-RST
O
Reset output to changers
54
CH-MUTE
I
Mute request from changers
55
CH-CON
O
Changer control
P-ON
56
I/O SW 5V control output
57
MOTOR
O
Main motor output
58
M-STBY
I
Cassette standby detection
T-END
59
I
Tape end detection
reset
60
I
Reset input terminal
eject
61
I
Eject key detection
62
CH-REQC
I
Request input from changers
63
ILL ON
O
Illumination output terminal
KEY-REQ
89
I
Panel key interrupt input
65
R-CLK
I
Clock input from the RDS decoder IC
66
PACK-IN
I
Cassette pack-in detection
67
VSS0
-
GND (port)
68
VDD1
-
Positive power supply
69
X2
-
Main clock output (12MHz)
70
X1
I
Main clock input
71
TEST
I
Program power supply (Mask: Test terminal)
72
XT2
-
Sub clock output (32.768MHz)
73
XT1
I
Sub clock input
74
VDD0
-
Positive power supply (port)
75
AVDD
I
A/D port reference voltage input
76
PHONE
I
Phone detection terminal
77
T-MODE
I
Tape mode detection
78
S-METTER
I
S-meter input from F/E
79
NOISE
I
FM noise detection input
80
TYPE 0
I
Destination type selection terminal
Description
KRC-765/691/691Y
Processing Operation
H: Power ON L: Power OFF
L: Request
L: Normally
H: ON
L: OFF
H: ON
L: OFF
H: OFF
L: ON
H: ON
L: OFF
H: STBY
H: Tape play L: Tape end
L: System reset
H: Normally
H: OFF
L: ON
H: OFF
L: ON
H: ON
L: OFF
L: Key input exist
H: Pack-in
Less than 1V: TEL mute
More than 2.5V: NAVI mute
Vth=2.5V
5
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