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MAIN MICROPROCESSOR TERMINAL DESCRIPTION-1
Q701 : uPD784225GC
No. PIN NAME
1
P15/ANI5
2
P16/ANI6
3
P17/ANI7
4
AVss
5
P130/ANO0
6
P131/ANO1
7
AVref1
8
P70/SI2/RxD2
9
P71/SO2/TxD2
10 P72/~SCK2/ASCK2 GND
11 P20/SI1/RxD1
12 P21/SO1/TxD1
13 P22/~SCK1/ASCK1 MSCK
14 P23/PCL
15 P24/BUZ
16 P25/SI0/SDA0
17 P26/SO0
18 P27/~SCK0/SCL0
19 P40/AD0
20 P41/AD1
21 P42/AD2
22 P43/AD3
23 P44/AD4
24 P45/AD5
25 P46/AD6
26 P47/AD7
27 P50/A8
28 P51/A9
29 P52/A10
30 P53/A11
31 P54/A12
32 P55/A13
33 Vss1
34 P56/A14
35 P57/A15
36 P60/A16
37 P61/A17
38 P62/A18
39 P63/A19
40 P64/~RD
41 P65/~WR
42 P66/~WAIT
43 P67/ASTB
44 P30/TO0
45 P31/TO1
46 P32/TO2
47 P33/TI1
48 P34/TI2
49 P35/TIO0
50 P36/TIO1
51 P37/EXA
52 P120/RTP0
53 P121/RTP1
54 P122/RTP2
SIGNAL NAME I/O DESCRIPTION
GND
I
Not used. To connect GND pin.
GND
I
Not used. To connect GND pin.
GND
I
Not used. To connect GND pin.
GND
I
GND
O Not used. Open pin.
O Not used. Open pin.
+5V
I
Power supply pin for A/D port.
RXD
I
Received pin of RS232C mode.
TXD
O Output pin of RS232C mode
I
Not used. To connect GND pin.
MSI
I
Data input pin from MP3 decoder and sub code data form CD processor.
MSO
O Transmitting data output pin to MP3 decoder and command data of CD processor.
O Decoder clock output pin. Communicate to MP3 decoder.
DOUT
O Select the CD or MP3 output mode. L=MP3 H=CD
SUBRST
O Reset signal output pin.
SUBSO
I
Serial data input pin from sub microprocessor.
SUBSI
O Serial data output pin to sub microprocessor.
SUBCL
O Serial clock output pin to sub microprocessor.
CDSUBQ
O Select the CD sub code output pin of serial port.
CDCOM
O Select the CD command output pin of serial port.
MP3COM
O Select the MP3 decoder output pin.
MP3CE
O Chip enable signal output pin of MP3 decoder.
SENSI
I
Sens input pin for CD signal processor.
CDXLT
O Command latch output pin for CD signal processor.
SCLKO
O Sens reading clock output terminal to CD signal processor.
FOKI
I
FOK signal input pin from signal processor.
LDON
O Laser light control output pin. HiZ=OFF L=CD H=CD-RW
CDRESET
O Reset pin of MP3 decoder.
CDPOWER
O Power supply control pin.
CDMUT
O Analog mute pin. H=OFF/L=ON
STOP_POS_SENS I
Detection the sensor input pin for disc position.
DISC_SENS
I
Disk existence detection optical sensor input terminal.
GND
I
GND
ROT_R
O Roulette motor control pin-R.
ROT_L
O Roulette motor control pin-L.
ROTHI
O Roulette motor speed control terminal..
LOADING_SW1
I
Loading clamp position detection switch input terminal 1.
LOADING_SW2
I
Loading clamp position detection switch input terminal 2.
LOADING_SW3
I
Loading clamp position detection switch input terminal 3.
CURRENT
I
Loading clamp motor current detection input terminal.
LOADING_L
O Loading clamp motor control terminal L.
LOADING_R
O Loading clamp motor control terminal R.
O Not used. Open pin.
O Not used. Open pin.
DITDI
I
The serial transmission data input terminal to DIT.
DITDO
O The serial transmission data output terminal to DIT.
DITCL
O The serial data transmission data output terminal to DIT.
DITCE
O The control command chip enable signal output terminal of DIT.
DITPD
O DIT power down signal output terminal.
EEPROMCS
O Chip select signal output pin of EEPROM.
EEPROMCLK
O Serial clock signal output pin of EEPROM.
EEPROMDI
O Serial data signal output pin to EEPROM.
EEPROMDO
I
Serial data signal input pin from EEPROM.
DACMUT
O Digital mute signal of DAC. H=ON/L=OFF
DX-C34
80 pin QFP
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