MB90480/485 Series
Pin No.
I/O
Pin name
circuit
Function
QFP*1 LQFP*2
type*3
F
MB90480
series
P75
This is a general purpose I/O port.
(CMOS)
32
33
30
31
P75
PWC2*4
This is a general purpose I/O port.
This is a PWC input pin.
G
MB90485
series
(CMOS/H)
F
MB90480
series
P76
P76
This is a general purpose I/O port.
(CMOS)
This is a general purpose I/O port.
Serves as the I2C interface data I/O pin. During opera-
tion of the I2C interface, leave the port output in a high
impedance state.
I
MB90485
series
(NMOS/H)
SCL*4
F
MB90480
series
P77
P77
This is a general purpose I/O port.
(CMOS)
This is a general purpose I/O port.
34
32
Serves as the I2C interface data I/O pin. During opera-
tion of the I2C interface, leave the port output in a high
impedance state.
I
MB90485
series
(NMOS/H)
SDA*4
P80, P81
IRQ0, IRQ1
P82 to P87
IRQ2 to IRQ7
P90
These are general purpose I/O ports.
External interrupt input pins.
E
47, 48
45, 46
(CMOS/H)
These are general purpose I/O ports.
External interrupt input pins.
E
52 to 57 50 to 55
(CMOS/H)
This is a general purpose I/O port.
Extended I/O serial interface data input pin.
Chip select 0.
E
58
59
60
56
57
58
SIN1
(CMOS/H)
CS0
P91
This is a general purpose I/O port.
Extended I/O serial interface data output pin.
Chip select 1.
D
SOT1
(CMOS)
CS1
P92
This is a general purpose I/O port.
Extended I/O serial interface clock input/output pin.
Chip select 2.
E
SCK1
(CMOS/H)
CS2
P93
This is a general purpose I/O port.
When the free run timer is in use, this pin functions as the external
clock input pin.
FRCK
ADTG
E
61
62
59
60
(CMOS/H)
When the A/D converter is in use, this pin functions as the external
trigger input pin.
CS3
P94
Chip select 3.
This is a general purpose I/O port.
D
(CMOS)
PPG4
PPG timer output pin.
(Continued)
12
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