HCD-EC709iP/EC909iP
32
• IC Pin Function Description
PANEL BOARD IC301 MB90F830PF-GE1 (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 SEG32 O Segment drive signal output to the liquid crystal display
2 O-SP-RELAY O Relay drive signal output terminal (for speaker)
3 O-POWER O Main power on/off control signal output terminal “H”: main power on
4 O-CD-ON O CD power on/off control signal output terminal “H”: CD power on
5 NC - Not used
6
O-SUBWOOFER-ON/
NC
O Subwoofer function on/off control signal output terminal (EC909iP only)
7
I-CDM-OPEN_
CLOSE
I Detection switch input from the CD lid open/close detect switch
8 NC - Not used
9 I-RMC I Remote control signal input from the remote control receiver
10 NC - Not used
11 O-5V-ON O VBUS power supply on/off control signal output terminal
12 NC - Not used
13 X0A I Sub system clock input terminal (32.768 kHz)
14 X1A O Sub system clock output terminal (32.768 kHz)
15 VCC - Power supply terminal (+3.3V)
16 VSS - Ground terminal
17 O-CD-CE O Chip enable signal output to the CD-MP3 processor
18 O-CD-CL O Serial data transfer clock signal output to the CD-MP3 processor
19 I-CD-DI I Serial data input from the CD-MP3 processor
20 O-CD-DO O Serial data output to the CD-MP3 processor
21 O-iPhone-DET-CTL O iPhone detection signal output to the iPod/iPhone connector
22 I-iPod-ACCP I Wakeup signal input from the iPod/iPhone connector
23 O-CDM-M-MUTE O Motor drive on/off control signal output to the motor/coil driver
24 O-CD-RESB O Reset signal output to the CD-MP3 processor
25 to 27 NC - Not used
28 O-LED O LED drive signal output terminal for LCD backlight
29 I-iPod-TXD I Serial data input from the iPod/iPhone connector
30 O-iPod-CP-RESET O Reset signal output to the EEPROM
31 O-iPod-RXD O Serial data output to the iPod/iPhone connector
32 AVCC - Power supply terminal (+3.3V)
33 O-AUDIO-DATA O Serial data output to the electrical volume
34 O-AUDIO-CLK O Serial data transfer clock signal output to the electrical volume
35 AVSS - Ground terminal
36 I-P-MONI I Power monitor signal input terminal
37, 38 I-KEY1, I-KEY2 I Front panel key input terminal (A/D input)
39 I-TU-ANSD I Auto gain control signal input terminal
40 I-5V/9V-DET I Power supply voltage detection signal input terminal
41 I-KEY-WAKE-UP/VOL I Front panel key input terminal (A/D input)
42 I-HOLD I Hold signal input terminal
43 NC - Not used
44 GND - Ground terminal
45 I-iPod-DET I iPod & iPhone detection signal input terminal
46 I-MODEL I Model setting terminal
47 I-SUFFIX I Suffi x setting terminal
48 I-TU-DO I Serial data input from the AM/FM-DET
49 I/O-iPhone-CP-DATA I/O Two-way data bus with the EEPROM
50 I/O-iPhone-CP-CLK I/O Serial data transfer clock signal bus with the EEPROM
51 to 53 MD2 to MD0 - Not used
54 I-RST I Reset signal input from the reset switch “L”: reset
55 O-TU-CE O Chip enable signal output to the AM/FM-DET
56 O-TU-DI O Serial data output to the AM/FM-DET
57 O-TU-CLK O Serial data transfer clock signal output to the AM/FM-DET
58 VLCD -
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive volt-
age
59 to 62
COM0, COM1,
CMO2, CMO3
O Common drive signal output to the liquid crystal display
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