6
Pin
Pin name
I/O
Description / Processing Operation
60
MODE3
I
Cassette mechanism positioning mode pluse input.
FF/REW/FWD/REV detection
61
AVSS
-
GND for A/D.
62
SC_CON
O
Panel microcomputer operation control output.
63
SC_BUSY
I
Panel BUSY input.
64
AVREF1
-
D/A reference voltage input.
65
CH_DATAC
I
Data input from changer.
66
CH_DATAH
O
Data output to changer.
67
CH_CLK
I/O
Clock output to changer.
68
SC_DATA
I
Data input from Panel microcomputer.
69
MC_DATA
O
Data output to Panel microcomputer.
70
MC_CLK
O
Clock output to Panel microcomputer.
71
MC_REQ
O
Communication request output to Panel microcomputer.
72
NC
O
Not used (N.C.)
73
PLL_CE
O
PLL IC chip enable control.
74
PLL_DATA
O
Data output to PLL IC.
75
PLL_CLK
O
Clock output to PLL IC.
76
DSI
O
Security LED control.
“L” : Indicator light on, ACC off : 100ms light on (cycle is 2s), ALL off : Light off,
During operation : Light on
77
NC
O
Not used (N.C.)
78
SUB_P
O
Cassette mechanism sub-motor control.
79
SUB_M
O
Cassette mechanism sub-motor control.
80
NC
O
Not used.
81
R_DATA
I
RDS DATA.
82
QUAL
I
RDS quality (Receiving mode).
83
MTL_OUT
O
Cassette mechanism output invert data, when metal detection.
“H” : Metal, “L”: Normal
84
MUSIC
I
Cassette mechanism between-music detection.
“H” : Between-music, “L” : Music
85
MSGV
O
When Cassette mechanism select music, gain switching.
“H” : Normal, “L” : FF/REW/DPSS
86
F/R
O
Cassette mechanism F/R switching.
“L” : FWD/Initial mode, “H” : REV
87
METAL
I
Cassette mechanism metal detection.
“H” : Normal, “L” : Metal
88
DOLBY
O
Cassette mechanism Dolby switching.
“H” : On, “L” : Off/Initial mode
89
EQ_MUTE
O
Cassette mechanism EQ mute.
“L” : Play, “H” : FF/REW/DPSS
90
MODE2
I
Cassette mechanism positioning mode pulse input.
FF/REW/FWD/REV detection
91
MODE1
I
Cassette mechanism positioning mode pulse input.
FF/REW/FWD/REV detection
92
AFC
O
AFC REQUEST output.
Noise detection output time constant switching (FM),
“L” : FM and AM seek, “H” : Normal receiving
93
IF_MODE
I
K2I IF detection.
“H” : WIDE, “L” : NARROW
94
WIDE
O
K2I enforced WIDE.
95
NARROW
I/O
K2I enforced NARROW.
96
FM_SD
I
FM SD input. “H” : Station detected, “L” : Station not detected
97
SDA_IC2
I/O
Electronic volume data input/output.
98
SCK_IC2
O
Electronic volume clock output.
99
A_SEL
O
AUDIO selection.
CD/TAPE switching. “L” : CD, “H” : TAPE
100
VSS
-
Connected to GND.
MICROCOMPUTER’S TERMINAL DESCRIPTION
GX-401EF2
