MICROCOMPUTER'S DESCRIPTION
System
µ
-com: UPD784217GC
●
Terminal description
No.
Pin name
Function
I/O
Description
Processing Operation
1
P120/RTP0
CHCON1
O
Changer 1 control
Active: Hi
2
P121/RTP1
CH_MUTE
I
Changer muting input
MUTE Requested : Hi
3
P122/RTP2
REQH
O
Handshake request to changers
Active: Lo
4
P123/RTP3
ILL_ON
O
Illumination output
Active: Hi
5
P124/RTP4
NC
O
Open
6
P125/RTP5
CD_SW2
I
12cm DISC detection
ON: Lo
7
P126/RTP6
CD_SW1
I
Loading detection
ON: Lo
8
P127/RTP7
NC
O
Open
9
Vdd
Vdd
-
Positive power supply
10
X2
X2
-
Main clock connection
11
X1
X1
-
Main clock connection
12
Vss
Vss
-
GND
13
XT2
XT2
-
Sub clock connection
14
XT1
XT1
-
Sub clock connection
15
RESET
RESET
I
Reset input
Active: Lo
16
P00/INTP0
CH_RST
O
Changer reset output
Active: Lo
17
P01/INTP1
R_CLK
I
RDS clock input
18
P02/INTP2/NMI
REQC
I
Handshake request from changer
Active: Lo
19
P03/INTP3
NC
I/O
20
P04/INTP4
NC
I/O
21
P05/INTP5
NC
I/O
22
P06/INTP6
SC_REQ
I
Handshake request from panel
µ
-com
23
AVdd
AVdd
-
A/D analog power supply
24
AVref0
AVref
-
A/D reference voltage input
25
P10/AN10
PHONE
I
PHONE detection terminal
1V or less: PHONE
2.5V or more: NAVI MUTE
26
P11/ANI1
SRM_SW1
I
SRM position detection
Open: Hi
27
P12/ANI2
NOISE
I
FM noise detection
Analog input
28
P13/ANI3
SMETER
I
FM signal meter detection
Analog input
29
P14/ANI4
IF_MODE
I
K2I IF selector
Wide: Hi/Narrow: Lo
30
P15/ANI5
NC
I
GND
31
P16/ANI6
M_MUTE_R
I
Mute request from mechanism
Mute requested: Lo
32
P17/ANI7
M_MUTE_L
I
Mute request from mechanism
Mute requested: Lo
33
AVss
AVss
-
A/D GND
34
P130/ANO0
EXT_AMP
O
EXT_AMP control
35
P131/ANO1
M_RST
O
Reset output to mechanism
Reset: Lo
36
AVref1
-
D/A reference voltage input
37
P70/RxD2/SI2
DATAC
I
Data line from changer
38
P71/TxD2/SO2
DATAH
O
Data line to changer
39
P72/ASCK2/SCK2
CH_CLK
I/O
Clock line from/to changer
40
P20/RxD1/SI1
L_DATAL/SC_DATA
I
Data line from LCD driver
41
P21/TxD1/SO1
L_DATAS/MC_DATA I/O
Data line to LCD driver
42
P22/ASCK1/SCK1
L_CLK/MC_CLK
I/O
Clock line to LCD driver
43
P23/PCL
M_STOP
O
Stop request to mechanism
Stop requested: Lo
44
P24/BUZ
BEEP
O
Beep output
Active: Hi
45
P25/SI0
PLL_CE
O
CE output to PLL
46
P26/SO0
PLL_DATA
I/O
Data in/out with PLL
47
P27/SCK0
PLL_CLK
O
Clock output to PLL
48
P80/A0
CD_SW3
I
Switch detection
ON : Hi
49
P81/A1
LO/EJ
O
Loading/Eject control
Loading: Lo/Eject: Hi
50
P82/A2
MOSW
O
Motor output
Loading: Hi/Eject: Lo
51
P83/A3
MECH_ DET
I
Mechanism detection
ON: Hi/OFF: Lo
52
P84/A4
PAN5V
O
Panel detection
OFF: Hi
53
P85/A5
L_CE/P_RST
O
CE to LCD driver/Panel
µ
-com reset
54
P86/A6
L_INH/MC_REQ
O
Reset to LCD driver
3
4
KDC-X915/X815/PS9016R/PS9080R
KDC-X915/X815/PS9016R/PS9080R
No.
Pin name
Function
I/O
Description
Processing Operation
55
P87/A7
DIM_CON
O
DIM control
56
P40/AD0
QUAL
I
RDS receiving condition
Good: Hi
57
P41/AD1
R_DATA
I
RDS data input
58
P42/AD2
SRM_SUB-
O
SRM sub motor output
59
P43/AD3
O
SRM sub motor output
60
P44/AD4
SRM_DET
I
SRM mechanism detection
ON: Lo/OFF: Hi
61
P45/AD5
SRM_SW2
I
SRM eject detection
: Eject
62
P46/AD6
FM_SD
I
FM SD input
Station detected: Hi
Not detected: Lo
63
P47/AD7
NC
O
Open
64
P50/A8
AFC
O
Noise detection time constant switching
During reception: Hi
During search: Lo
65
P51/A9
O
66
P52/A10
WIDE
O
K2I Wide output
Active: Hi
67
P53/A11
NARROW
I/O
K2I Narrow output
Active: Hi
68
P54/A12
AM+B
O
AM power supply
Active: Hi
69
P55/A13
FM+B
O
FM power supply
Active: Hi
70
P56/A14
NC
O
Open
71
P57/A15
NC
O
Open
72
Vss
-
GND
73
P60/A16
TYPE0
I
Destination type switch
74
P61/A17
TYPE1
I
Destination type switch
75
P62/A18
TYPE2
I
Destination type switch
76
P63/A19
ST_TYPE0
I
IC2 Var. 3 destination type 0
Initial value: Lo
77
P64/RD
ST_TYPE1
I
IC2 Var. 3 destination type 1
Initial value: Lo
78
P65/WR
NC
O
Open
79
P66/WAIT
PRE MUTE R
O
Open
Active: Lo
80
P67/ASTB
PRE MUTE L
O
Open
Active: Lo
81
Vdd
-
Positive power supply
82
P100/TI5/TO5
NC
O
Open
83
P101/TI6/TO6
SVR
O
Power IC reset
Power ON: Lo
84
P102/TI7/TO7
NC
O
Open
85
P103/TI8/TO8
P_MUTE
O
Power IC muting
Active: Lo
86
P30/TO0
ANT_CON
O
Antenna control
Active: Hi
87
P31/TO1
IC2_SCK
O
IC2, IC5, EEPROM clock line
88
P32/TO2
DIMMER
I
Dimmer detection
Active: Lo
O
Power control
Active: Hi
I
ACC detection
ACC OFF: Hi
I
Remote control input
O
µ
-com peripheral power supply
Active: Hi
I
Momentary power down detection
Momentary power down: Hi
-
Test
GND
I/O
IC2, IC5, EEPROM data line
O
Muting output
Active: Hi
O
5V power supply
Active: Lo
O
CD mechanism clock line
I/O
CD mechanism data line
100
P95
O
NC
MICROCOMPUTER'S DESCRIPTION
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