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3 7 63 1515 0
PDC055A (DISPLAY ASSY : IC5501)
• System Control Microcomputer
•
Pin Function
No.
Pin Name
1
CD RESET
2
CD CE
3
CD DRF
4
S.DATA OUT
5
EXP CLK
6
EXP DATA
7
EXP CE
8
LED1
9
LED2
10 LED3
11 AC
12 XRESET
13 REEL1
14
15 VSS
16 CF1
17 CF2
18 VDD
19 KEY1
20 MS
21 ST/TUNE
TE
L 13942296513
22
23 S.REQ
24 KEY2
25 SPE-IN
26 KEY3
27 CD WRQ
28 RDS CLK
29 REMOCON
30 G01
31 G02
32 G03
33 G04
34 G05
35 G06
36 G07
37 G08
38 G09
39 G10
40 G11
41 G12
42 G13
43 G14
www
44
45
46 VDD
.
47 D1/S01
48 D2/S02
49 S03
50 S04
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I/O
Function
O
Reset output for CD LSI
O
Strobe output for CD LSI
I
RF level detection input
O
System bus data output
O
Clock output for EXP IC (BU4094BCF)
O
Data output for EXP IC (BU4094BCF)
O
Strobe output for EXP IC (BU4094BCF)
O
LED1 control
O
LED2 control
O
LED3 control
I
AC pulse input for power supply monitor
I
CPU reset input
I
Pulse input for deck reel
I
Pull down
−
I
O
−
I
Front key input 1
I
DECK MS signal input
I
TUNER TUNED (STEREO) detection
I
Pull down
I/O System bus request input/output
I
Front key input 2
I
Spectram analizer signal input
I
Front key input 3
I
Q data OK signal input of CD sub code
I
Clock input (BU1923) for RDS IC
I
Remote control signal input
O
FL display control grid
x
ao
y
−
Power supply
i
I/O
I/O
FL display control segment
O
O
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8
No.
Pin Name
51 VFDP
52 S05
53 S06
54 S07
55 S08
56 S09
57 S10
58 S11
59 S12
60 S13
61 S14
62 S15
63 CLAMP/S16
64 OPEN/S17
65 INSIDE/S18
66 DISC123/S19
67 ARR/S20
68 ARF/S21
69 MODE1/S22
70 S23
71 HALF1/S24
Q Q
3
6 7
1 3
72 VDD
73 S25
74 CrO2_1/S26
75 S27
76 SCAN ON
77 S.CLK
78 SOL1
79 MOTOR
80 RDSDATA
81 VOLJOG1
82 VOLJOG2
83 PLL CE
84 XMDRESET
85 EVOL CE
86 POWER
87 LINE MUTE
88 LED CE
89 VSS
90 VDD
91 S.DATA IN
92
93 MORP JOG1
94 MORP JOG2
95 SYSDATA
u163
96 TXDATA
.
97 SYS CLK
98 CD DATA
99 SQ OUT
100 CD CLK
XR-A550MD
2 9
9 4
2 8
I/O
Function
−
O
FL display control segment
I/O
O
I/O
1 5
0 5
8
2 9
9 4
−
Power supply
O
I/O
FL display control segment
O
O
Key scan input control
O
System bus clock output
O
Deck solenoid control
O
Deck motor control
I
Data input for RDS
I
Pulse input for Volume JOG
O
TUNER PLL IC strobe output
O
Reset output for MD system microcomputer
O
Main volume control IC strobe output
O
Main power control
O
Line mute control
O
LED control for timer
−
GND
−
Power supply
I
System bus data input
I
Pull down
m
I
Pulse input for Sound Morphing JOG
O
Serial data output
co
I
Serial data input
O
Serial clock output
O
Serial data output for CD LSI
I
Serial data (Q data) input for CD LSI
O
Serial clock output for LSI
9 9
2 8
9 9
93
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