Read Sony XDR-M1 Service Manual online
17
XDR-M1
• IC Pin Description
• IC501 MB90F474LPFV-GE1 (SYSTEM CONTROL) (MICON BOARD)
Pin No.
Pin Name
I/O
Pin Description
1
P22
O
Parallel data signal output to LCD driver
2
P23
O
Parallel data signal output to LCD driver
3
P24
O
Parallel data signal output to LCD driver
4
P25
O
Parallel data signal output to LCD driver
5
P26
O
Parallel data signal output to LCD driver
6
P27
O
Parallel data signal output to LCD driver
7, 8
P30, P31
O
Not used in this set. (Open)
9
VSS
—
Ground pin
10
P32
O
Not used in this set. (Open)
11
LCD RD/P33
O
LCD parallel data read signal output
12
LCD WR/P34
O
LCD parallel data write signal output
13
LCD A0/P35
O
LCD data/command change signal output
14
LCD RES/P36
O
Reset control signal output to LCD driver
15
LCD CS/P37
O
Chip select control signal output to LCD driver
16 to 20
P40 to P44
O
Not used in this set. (Open)
21
VCC5
—
Power supply pin
22 to 24
P45 to P47
O
Not used in this set. (Open)
25
RXD/SIN0
I
UART data signal input
26
SOT0
O
UART data signal output
27 to 32
P72 to P77
O
Not used in this set. (Open)
33
AVCC
—
A/D converter power supply pin
34
AVRH
I
A/D converter external reference power supply pin
35
AVRS
—
A/D converter ground pin
36
AN0
I
Key signal input 0
37
AN1
I
Key signal input 1
38
AN2
I
Key signal input 2
39
AN3
O
Not used in this set. (Open)
40
VSS
—
Ground pin
41 to 44
AN4 to AN7
O
Not used in this set. (Open)
45
IRQ0/P80
I
Flash write signal input Normally: “L”
46
IRQ1/P81
I
Flash write signal input Normally: “L”
47
MD0
I
Mode disignation signal input 0 Normally: “H”, Flash write: “L”
48
MD1
I
Mode disignation signal input 1 Normally: “H”, Flash write: “L”
49
MD2
I
Mode disignation signal input 2 Normally: “L”, Flash write: “H”
50
IRQ2
I
Battery off detect signal input (Radio forced off)
51
IRQ3
I
Voltage detect signal input (Radio forced off)
52
IRQ4
O
Not used in this set. (Open)
53
IRQ5
I
Key interruption signal input
54
IRQ6
I
HOLD key signal input
55
IRQ7
I
Voltage detect signal input
56
SIN1/PLL DI
I
PLL serial communication data signal input
57
SOT1/PLL DO
O
PLL serial communication data signal output
58
SCK1/PLL CLK
O
PLL serial communication clock signal output
59
P93/PLL CE
O
PLL chip enable signal output
60
P94/EEPROM CS
O
Not used in this set. (Open)
61
P95/BEEP
O
BEEP signal output
62, 63
P96, P97
O
Not used in this set. (Open)
64
PA0
O
Not used in this set. (Open)
65
PA1/KEY OFF
O
Key power supply control signal output ON: “L”
66
PA2/MUTE
O
Mute signal output ON: “L”
67
PA3/RADIO SW
O
Radio power supply control signal output ON: “H”
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