Daewoo ACP-0208 Series, Service Manual

Page: 26 / 38

FUNCTION OF MICOM IC UPD178016GC
for ACP-2208,0208 Seriese
10-2. PIN DESCRIPTION
PIN
77
76
22
30
79
21
33
75
69
18
7
8
9
10
12
13
14
19
4
67
11
20
ASSIGN
P_XIN
POWER OFF LOW, POWER ON HIGH
KEY & LCD DRIVER IC INTERFACE PORTS.
EVR IC INTERFACE PORTS
AUDIO MUTE PORT, ACTIVE HIGH
BEEP OUTPUT PORT.
DETACHABLE ON / OFF INPUT PORT.
CONTACT LOW
System clock oscillation(4.5 MHz CRYSTAL)Conn.
Positive power supply (MAX : 6.5V)
BACK UP MODE Control input
LOW : BACK UP MODE. If back up mode, clock
is displayed When clock is selected.
POWER CONTROL PORT.
(2.08 kHz beep sound)
Auto antenna control Port(Radio mode “H” output
CD Servo control Input
P_XOUT
P_VDD
P_VDD
P_VDD
P_GND
P_GND
P_GND
P_ACC
P_POWER
P_LCD SI
P_LCD S0
P_LCD CLK
P_LCD CE
P_EVR CE
P_EVR SO
P_EVR CLK
P_AMUTE
59 P_BEEP
P_ANT+
P_WRQ
P_PANEL
P_COLOR
DESCRIPTION I/O
I
O
I
O
O
I
O
O
O
O
O
O
O
O
I
I
O
28
NAME
X1
X2
VDDPORT
VDDPLL
VDD
GNDPORT
GNDPLL
GND
P02/INTP2
P40
P20/SI1
P21/SO1
P22/SCK1
P23/STB
P25/SI0
P26/SO0
P27/SCK0
P41
P36/BEEP
P13/AN13
P00/INTP0
P24/BUSY
P42
SEPARATE LOW
No Connection Pin