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P16 P15 P14 P13 P12 P11 P10 P9
P1 P2 P3 P4 P5 P6 P7 P8
ANALOG
SURROUND
ATT LEVEL
ON/OFF
VREF
A
A
B
B
SW
SW
Vcc
CONT1 CONT2 CONT3 GND HFFC VREF L-IN R-IN
GCR GLR POG LPFD NC VCC L-OUT R-OUT
IC452 (LA2615 Suround Signal Processor)
IC601 M38B57MCH-A269FP (8-bit Microcomputer)
No. Pin Name I/O Function
1 P75/AN05 I Volume
2 P74/AN04 I Volume
3 P73/AN03 AD
4 P72/AN02 AD
5 P71/AN01 I Protect
6 P70/AN00 O Function control
7 P61/CNTR0/CNTR2 O Power control
8 P60/CNTR1 O Clock shift control output(bc-A=Low)
9 P47/INT2 I Power failure detection (Power
Failure=L)/Micon power check(Down=L)
10 RESET System reset terminal
11 P91/Xcout Sub clock oscillating terminal
12 P90/Xcin Sub clock oscillating terminal
13 Vss Ground potential terminal
14 Xin Main clock oscillating ceramic terminal
15 Xout Main clock oscillating ceramic terminal
16 Vcc Plus power terminal
17 P46/T3out Ground control output for micon power check
18 P45/T1out O Mute Output(ON=H)
19 P44/PWM1 O Pull up control (ON=L)
20 P43/Buz01 I Option Select in
21 P42/INT3 I Remote control input
22 P41/INT1 I RDS data input
23 P40/INT0 I/O Serial synchro input /output
24 P87/PWM0/FLD39 I TU PLL DO
25 P86/RTP1/FLD38 O TU PLL /RDS CLK
26 P85/RTP0/FLD37 O TU PLL /RDS DATA
27 P84/FLD36 O TU PLL /RDS CE
28 Vee FL Minus power terminal
29 P83/FLD35 O FL digit output(Pull Down R) SEL_12/24
30 P82/FLD34 O FL digit output(Pull Down R) SEL_RDS
31 P81/FLD33 O FL digit output(Pull Down R) SEL_RDSE
32 P80/FLD32 O FL digit output(Pull Down R) SEL_10KEY
33 P37/FLD31 O FL digit output SEL_FUNC
34 P36/FLD30 O FL digit output SEL_ECO
35 P35/FLD29 O FL digit output SEL_DPS
36 P34/FLD28 O FL digit output SEL_DIM
37 P33/FLD27 O FL digit output SEL_FUNC2
38 P32/FLD26 O FL digit output SEL_DISP
39 P31/FLD25 O FL digit output SEL_FUNC3
No. Pin Name I/O Function
40 P30/FLD24 O FL digit output
41 P17/FLD23 O FL segment output
42 P16/FLD22 O FL segment output
43 P15/FLD21 O FL segment output
44 P14/FLD20 O FL segment output
45 P13/FLD19 O FL segment output
46 P12/FLD18 O FL segment output
47 P11/FLD17 O FL segment output
48 P10/FLD16 O FL segment output
49 P07/FLD15 O FL segment output
50 P06/FLD14 O FL segment output
51 P05/FLD13 O FL segment output
52 P04/FLD12 O FL segment output
53 P03/FLD11 O FL segment output
54 P02/FLD10 O FL segment output
55 P01/FLD09 O FL segment output
56 P00/FLD08 O FL segment output
57 P27/FLD07 O FL segment output (Pull Down R)
58 P26/FLD06 O FL segment output (Pull Down R)
59 P25/FLD05 I MULTI
60 P24/FLD04 I MULTI
61 P23/FLD03 I BASS
62 P22/FLD02 I BASS
63 P21/FLD01 I TREBLE
64 P20/Buz02/FLD00 I TREBLE
65 P57/Srdy2/Sclk22 I/O Serial chip enable input/output
66 P56/Sclk21 I/O Serial clock input/output
67 P55/Txd Out Serial DATA output
68 P54/Rxd In Serial DATA input
69 P53/Sclk12 I Headphone switch
70 P52/Sclk11 O Bass control output (ON="H")
71 P51/Sout1 O Front speaker relay control(H=ON)
72 P50/Sin1 O Power control(Power ON=H)
73 Avss A/D ground potential terminal
74 VREF A/D standard sub potential terminal
75 P65/Sstb1/AN11 O
76 P64/INT4/Sbusy1/AN10 O
77 P63/AN09 O LC75385NE CE
78 P62/AN08 O 3D srround control output
79 P77/AN07 O 3D srround control output
80 P76/AN06 O NC
IC BLOCK DIAGRAM & DESCRIPTION
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