KDC-716S/8018
3
MICROCOMPUTER'S TERMINAL DESCRIPTION
●
Terminal description
Pin
Function
I/O
Description
Processing Operation
1
AM+B
O
AM power terminal
H: During AM radio operation
2
FM+B
O
FM power terminal
H: During FM radio operation
H: During FM radio operation if with RDS, RBDS
3
AFS
O
Switching terminal for noise detection
L: During AF search, FM seek
H: During receive
4
PLL-DATA
I/O
Data I/O terminal to F/E
5
PLL-CLK
I/O
CLK terminal to F/E
6
Evdd
-
Positive power terminal
7
Evss
-
GND terminal
8
N.C
O
Open (not used)
9
BEEP
O
BEEP output terminal
10
N.C
O
Open (not used)
11
PRE-MUTE L
O
L (during CD): when M MUTE L is L (low)
L during momentary power down
Fixed at H only during 2 zone
12
PRE-MUTE R
O
L (during CD): when M MUTE R is L (low)
L during momentary power down
Fixed at H only during 2 zone
13
IC2-SDA
I/O
IC2, IC5, CD mechanism, DATA line
14
IC2-SCL
O
IC2, IC5, CD mechanism, CLK line
15
N.C
O
Open (not used)
16
N.C
O
Open (not used)
17
N.C
O
Open (not used)
18
TEST
-
Test terminal
19
P-MUTE
O
Power IC MUTE terminal
L: During Power-OFF L: During All-OFF
L: During Tell-mute
20
P-STBY
O
Power IC STBY terminal
Power IC ON: H. Power IC OFF: L. During All-OFF: H
21
MUTE
O
MUTE termianl
ON: Open OFF: L
22
N.C
O
Open (not used)
23
N.C
O
Open (not used)
24
ACC-DET
I
ACC detection terminal
L: ACC
H: No ACC
25
DIMMER
I
Small detection terminal
ON: L
OFF: H
26
SW5V
O
5 volt power terminal
ON: L
OFF: H
27
EXT-AMP-CO
O
External AMP control terminal (200ms)
L 40ms: Bus boost OFF
L 70ms: Bus boost LOW
L 100ms: Bus boost HI
28
P-CON
O
Power control terminal
Power ON: H
Power OFF: L
29
ANT-CON
O
Antenna control terminal
TUNER, TI ON: H Open if no ANT-CON
30
P-ON
O
SW14V control terminal
Power ON: H
Power OFF: L
31
RESET
I
Reset IN terminal
H: Normally
H: During reset
32
XT1
I
Subclock terminal
Time count
Operation during Power-OFF
33
XT2
-
Subclock terminal
34
REGC
-
Capacitor output terminal for regulator inside microprocessor
35
X2
-
Main clock terminal
Oscillates: During Power-ON
Oscillates stop: During Power-OFF, during
momentary power down
36
X1
I
Main clock terminal
37
Vss
-
GND terminal
38
Vdd
-
+B terminal
39
CLKOUT
O
Internal system clock output
40
N.C
O
Open (not used)
41
N.C
O
Open (not used)
42
TYPE0
I
Destination selector port
43
TYPE1
I
Destination selector port
44
TYPE2
I
Destination selector port
45
N.C
O
Open (not used)
46
IC2TYPE0
I
IC2 destination terminal
L: During default
System
µ
-com: UPD703033GC053
