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MICROCOMPUTER'S TERMINAL DESCRIPTION
System µ-com: UPD703033GC051
Terminal description
Pin
Function
I/O
1
AM+B
O
2
FM+B
O
3
O
AFS
4
PLL-DATA
I/O
5
PLL-CLK
I/O
6
Evdd
-
7
Evss
-
8
N.C
O
9
BEEP
O
10
N.C
O
11
PRE-MUTE L
O
12
PRE-MUTE R
O
13
IC2-SDA
I/O
14
IC2-SCL
O
15
N.C
O
16
N.C
O
17
N.C
O
18
TEST
-
19
P-MUTE
O
20
P-STBY
O
21
MUTE
O
22
N.C
O
23
N.C
O
24
ACC-DET
I
25
DIMMER
I
26
SW5V
O
27
EXT-AMP-CO
O
28
P-CON
O
29
ANT-CON
O
30
P-ON
O
31
I
RESET
32
XT1
I
33
XT2
-
34
REGC
-
35
X2
-
36
X1
I
37
Vss
-
38
Vdd
-
39
CLKOUT
O
40
N.C
O
41
N.C
O
42
TYPE0
I
43
TYPE1
I
44
TYPE2
I
45
N.C
O
46
IC2TYPE0
I
Description
AM power terminal
FM power terminal
Switching terminal for noise detection
Data I/O terminal to F/E
CLK terminal to F/E
Positive power terminal
GND terminal
Open (not used)
BEEP output terminal
Open (not used)
IC2, IC5, CD mechanism, DATA line
IC2, IC5, CD mechanism, CLK line
Open (not used)
Open (not used)
Open (not used)
Test terminal
Power IC MUTE terminal
Power IC STBY terminal
MUTE termianl
Open (not used)
Open (not used)
ACC detection terminal
Small detection terminal
5 volt power terminal
External AMP control terminal (200ms)
Power control terminal
Antenna control terminal
SW14V control terminal
Reset IN terminal
Subclock terminal
Subclock terminal
Capacitor output terminal for regulator inside microprocessor
Main clock terminal
Main clock terminal
GND terminal
+B terminal
Internal system clock output
Open (not used)
Open (not used)
Destination selector port
Destination selector port
Destination selector port
Open (not used)
IC2 destination terminal
KDC-X917/X817/9017
H: During AM radio operation
H: During FM radio operation
H: During FM radio operation if with RDS, RBDS
L: During AF search, FM seek
H: During receive
L (during CD): when M MUTE L is L (low)
L during momentary power down
Fixed at H only during 2 zone
L (during CD): when M MUTE R is L (low)
L during momentary power down
Fixed at H only during 2 zone
L: During Power-OFF
L: During Tell-mute
Power IC ON: H. Power IC OFF: L. During All-OFF: H
ON: Open
L: ACC
ON: L
ON: L
L 40ms: Bus boost OFF
L 70ms: Bus boost LOW
L 100ms: Bus boost HI
Power ON: H
TUNER, TI ON: H Open if no ANT-CON
Power ON: H
H: Normally
Time count
Oscillates: During Power-ON
Oscillates stop: During Power-OFF, during
momentary power down
L: During default
Processing Operation
L: During All-OFF
OFF: L
H: No ACC
OFF: H
OFF: H
Power OFF: L
Power OFF: L
H: During reset
Operation during Power-OFF
3
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