Sharp CD-C440W Service Manual page 48

CD-C440W/CP-C440W
IC701 RH-iX0170AWZZ:System Microcomputer (IX0170AW) (1/2)
Pin No. Port Name
1-5 P94/FIP6-P90/FIP2
6,7 P81/FIP1,P80/FIP0
8 VDD
9 P27/SCK0
10 P26/S00/SB1
11 P25/SI0/SB0
12 P24/BUSY
13 P23/STB
14 P22/SCK1
15 P21/SO1
16 P20/SI1
17 RESET
18 P74
19 P73
20 AVSS
21 P17/ANI7
22 P16/ANI6
23 P15/ANI5
24 P14/ANI4
25 P13/ANI3
26 P12/ANI2
27 P11/ANI1
28 P10/ANI0
29 AVDD
30 AVREF
31 P04/XT1
32* XT2
33 VSS
34 X1
35 X2
36 P37
37 P36/BUZ
38 P35/PCL
39* P34/TI2
40* P33/TI1
41* P32/TO2
42 P31/TO1
43 P30/TO0
44* P03/INTP3/CI0
45* P02/INTP2
46 P01/INTP1
47 P00/INTP0/TI0
48 IC
49* P72
50* P71
51* P70
52 VDD
53* P127/FIP33
54-60 P126/FIP32-P120/FIP26 S21-S15
61-68 P117/FIP25-P110/FIP18 S14-S07
69,70 P107/FIP17,P106/FIP16 S06,S05
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Terminal Name Input/Output
G06-G02 Output
G01,G00 Output
VDD —
C 2 B CLK Output
2
C B DO Output
C 2 B DI Input
2
C B CE Output
SUB STB Output
SUB SCK Output
SUB SO Output
SUB SI Input
RESET Input
SUB RES Output
TUN MUTE Output
AVSS —
TUN SD Input
TUN SM Input
KEY IN5 Input
KEY IN4 Input
KEY IN3 Input
KEY IN2 Input
KEY IN1 Input
ENF IN Input
AVDD —
AVREF —
VSS Input
N.C —
VSS —
X1 Input
X2 Output
LED LCK Output
LED DATA Output
LED CLK Output
RDS ID Input
RDS SYNC Input
RDS SYR Output
SYS MUTE Output
POWER Output
———— Output
———— Output
SYS STOP Input
REM IN Input
VSS —
———— Output
———— Output
———— Output
VDD —
———— —
Output
Output
Output
FL display tube grid drive
FL display tube grid drive
Positive power supply
C 2 B serial clock output
2
C B serial data output
C 2 B serial data input
2
C B serial CE output
Serial strobe output for CD/TAPE microcomputer
Serial clock output for CD/TAPE microcomputer
Serial data output for CD/TAPE microcomputer
Serial strobe input for CD/TAPE microcomputer
Reset input
Reset output for CD/TAPE microcomputer
Tuner TUN MUT output
Analog power supply for A/D converter
Tuner station detection input
Tuner signal meter input
Key input 37-45
Key input 28-36
Key input 19-27
Key input 10-18
Key input 1-9
Tuner initial setting input
Analog positive power supply for A/D converter
Reference power supply for A/D converter
Sub-clock input To be connected to Vss
Sub-clock output OPEN
GND power
Main clock 4.194304 MHz
Main clock 4.194304 MHz
LED IC serial clock output BU2092 LCK
LED IC serial data output BU2092 DATA
LED IC serial clock output BU2092CLK
RDS RDS station detection input
RDS Data sync detection input
RDS RAM reset output LC72720 SYR
System mute output
POWER output
No Use
No Use
Power failure input
Remote Control Input
Connect with GND
No Use
No Use
No Use
Positive power supply
No Use
FL display tube segment drive
FL display tube segment drive
FL display tube segment drive
– 48 –
Function