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2.Pin functions(2/2)
Pin No.
Symbol
44~47
NC
48
EPROM DI
49
EPROM DO
50
EPROM CK
51
SD/SI
52
PLL CE
53
PLLDATA
54
PLL CLK
55
PLL DI
56~60
NC
61
NC
62
E.VOL SO
63
E.VOL SCK
64
LCD RESET
65
TEL MUTE
66~71
NC
72
GND
73~79
NC
80
POWER ON
81
VDD
82
CD MUTE
83
CD RESET
84
NC
85
NC
86
AREA SET1
87
AREA SET2
88
NC
89
LCD TEST
90
NC
91
NC
92
CST MUTE
93
CST RESET
94
TEST
95~100
NC
I/O
Function
O
Non connect
O
Data input from EPROM
O
Data output to EPROM
O
EPROM Clock signal I/O
I
Stationdetector and stereo signal input terminal ("H" input at SD)
O
Chip enable output terminal to PLL
O
Data output terminal to PLL
O
Clock output terminal for communication to PLL
I
Data input terminal from PLL
O
Non connect
O
Non connect
I/O
Data I/O terminal to electric volume
I/O
Clock I/O terminal for communication to electric volume
O
Reset signal output terminalto LCD driver("L" output when resetting)
I
Outputs by "L" input the mute output terminal "L"
O
Non connect
-
(Connect with GND)
O
Non connect
O
Power is output " H" when it is on
-
(Connect with VDD)
I
Mute signal demand input terminal from CD mechanism
O
When the terminal RESET detects "L", 200mS "H"
O
(CD mechanism) (Reset output terminal is output)
Non connect
O
Non connect
I
Area setting of tuner 1
I
Area setting of tuner 2
O
Non connect
I
All lighring display of LCD by "L" input
O
Non connect
O
Non connect
I
Mute signal demandinput terminal from cassette mechanism
O
Reset output terminal to cassette mechanism
-
(When the terminal RESET detects "L", 200mS "H" is output)
GND and connects with 10k
O
Non connect
KW-XC828
UPD784215AGC173(2/2)
1-39
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