KRC-20SA/G
5
MICROCOMPUTER'S TERMINAL DESCRIPTION
●
Terminal Description (IC1 : X14-6852-71)
Pin No.
Pin name
I/O
Description
Processing Operation
1
XIN
I
Main clock resonator connection terminal
2
GND
-
TEST terminal 2
Connected to GND lines.
3
L DATA L
I
Data input from the LCD driver IC
4
L DATA S
O
Data output to the LCD driver IC
5
L CLK
O
Clock output to the LCD driver IC
6
L CE
O
CE output to the LCD driver IC
7
SDA
I/O
Data input/output with the E-VOL. IC
8
PLL DATA
I/O
Data input/output with the F/E
9
PLL CLK
O
Clock output to the F/E
10
SD
I
SD input from the F/E
Hi : Station detected
11
DATA C
I
Data input from changers
12
DATA H
O
Data output to changers
13
CH CLK
I/O
Clock input/output with changers
14
-
O
-
N.C. (Not used)
15
MOTOR
O
Cassette motor on/off output
Hi : Motor ON
16
SCL
O
Clock output to the E-VOL. IC
17-24
-
O
-
N.C. (Not used)
25
AM+B
O
AM+B ON/OFF output
Hi : during AM reception
26
FM+B
O
FM+B ON/OFF output
Hi : during FM reception
27
PACK IN
I
Cassette tape Pack-in detection input
Lo : Pack-in
28
FF/REW
I
FF/REW detection input
Lo : FF/REW, Hi : PLAY
29
GND
I
-
Connected to GND lines.
30
GND
I
-
Connected to GND lines.
31
VDD
-
Positive power supply connection terminal
Connected to B.U. 5V lines.
32
REQ C
I
Request input from changers
Lo : Request
33
MUTE
O
Audio mute on/off output
Hi : Mute ON
34
CH CON
O
Changer control
Lo : Standby, Hi : ON
35
REQ H
O
Request output to changers
Lo : Request
When the momentary power down, after ACC
36
SVR
O
Power IC reset terminal
ON/OFF is detected and after POWER OFF,
the output becomes Hi temporarily.
37
AMP STBY
O
Power IC standby control output
Hi : POWER ON mode
38
AMP MUTE
O
Power IC mute control
Lo : Mute
39
P CON
O
Power control
Hi : POWER ON mode
40
ANT CON
O
Antenna control
Hi : during FM/AM reception
41
SW5V
O
SW 5V control
Lo : POWER ON mode
42
ILL
O
Illumination AVR ON/OFF control terminal
Hi : POWER ON mode
43
-
O
-
N.C. (Not used)
44
BEEP
O
BEEP sound output
45-47
-
O
-
N.C. (Not used)
48
ROLL OFF
I
Roll off input
Pull down to GND lines. (Not used)
49
NOISE
CANCELLER
I
Noise canceller input
Pull down to GND lines. (Not used)
50
SEL1
I
Destination input 1
Hi : KRC-20S
51
SEL2
I
Destination input 2
Hi : KRC-20S
52
SEL3
O
Destination input 3
N.C. (Not used)
