15
XDR-S1
• IC PIN DESCRIPTION
• IC701 MB90F474HPFV-GE1 (SYSTEM CONTROL) (MICON BOARD)
Pin No.
Pin Name
I/O
Pin Description
1
P22
I/O
Data for EEPROM (Not used)
2
P23
O
Clock for EEPROM (Not used)
3
P24/BEEP
O
BEEP output
4 to 8
P25 to 31
O
Not used
9
VSS
—
Ground
10
P32
O
Not used
11
P33/LCD_RD
O
LCD parallel read data
12
P34/LCD_WR
O
LCD parallel write data
13
P35/LCD_A0
O
LCD data/command changeover
14
P36/LCD_RES
O
RES control output to LCD driver
15
P37/LCD_CS
O
CS control output to LCD driver
16 to 20
P40 to 44
O
Not used
21
VCC5
—
Power supply pin (+3.3 V)
22
P45/P_CON_AF
O
Power control (AF)
23
P46/P_CON_RF
O
Power control (RF)
24
P47/P_CON_RELAY
O
Power control (relay)
25
RXD/SIN0
I
Serial transmission in test mode (Usually : Not connected)
26
P71/TDX
O
Serial transmission in test mode (Usually : Not connected)
27
P72/SCLK
I/O
Serial transmission in test mode (Usually : Not connected)
28
P73/MUTE2
O
Mute control
29
P74/DAB_FM
O
DAB/FM changeover
30 to 32
P75 to 77
O
Not used
33
AVCC
—
Power supply for A/D converter
34
AVRH
I
External reference power supply for A/D converter
35
AVRS
—
Ground for A/D converter
36 to 39
AN0/KEY1 to AN3/KEY4
I
Key input
40
VSS
—
Ground
41 to 44
AN4 to 7
O
Not used
45
IRQ0
I
For FLASH writing (Always : Low)
46
IRQ1
I
For FLASH writing (Always : Low)
47
MD0
I
Normally : High, FLASH writing : Low
48
MD1
I
Normally : High, FLASH writing : High
49
MD2
I
Normally : Low, FLASH writing : High
50
IRQ2/KEY_INT
O
Key input interruption
51
IRQ3/DSP_INT
I
Interruption from DSP
52
IRQ4/RMT
I
Remote control input
53
IRQ5
I
Not used
54
IRQ6/VDET
I
Reduced voltage detection (Radio : off)
55
IRQ7
O
Not used
56
SIN1/DSP_SI
I
Input of data for DSP
57
SOT1/DSP_SO
O
Output of data for DSP
58
SCK1/DSP_SCK
O
Clock for DSP
59
P93/DSP_FR
O
Notification of start of data transfer from MCU to DSP
60
P94/DSP_FX
O
Notification of start of data transfer from DSP to MCU
61
P95/DSP_RES1
O
Resetting to DSP (AFE8130)
62
P96/DSP_RES2
O
Resetting to DSP (DA255)
63
P97
O
Not used
64
PA0/VOL_CLK
O
Electronic volume serial clock output (BD3870)
65
PA1/VOL_DA
O
Electronic volume serial data output
66
PA2/DBB
O
MAGA BASS control
67
PA3/MUTE1
O
Mute output
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23/7/2013
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