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
