MB90480/485 Series
Pin No.
I/O
circuit
Pin name
Function
QFP*1 LQFP*2
type*3
P43, P44
A11, A12
P43, P44
A11, A12
This is a general purpose I/O port.
MB90480
series
F(CMOS)
F(CMOS)
In non-multiplex mode, this pin functions as an external
address pin.
This is a general purpose I/O port.
21, 22 19, 20
In non-multiplex mode, this pin functions as an external
address pin.
MB90485
series
MT00,
MT01
µPG output pin.
P45
A13
P45
A13
This is a general purpose I/O port.
F
MB90480
series
In non-multiplex mode, this pin functions as an external
address pin.
(CMOS)
24
22
This is a general purpose I/O port.
G
In non-multiplex mode, this pin functions as an external
address pin.
MB90485
series
(CMOS/H)
EXTC*4
P46, P47
A14, A15
µPG input pin.
This is a general purpose I/O port.
F
In non-multiplex mode, this pin functions as an external address pin.
25, 26 23, 24
(CMOS)
OUT4/
OUT5
Output compare event output pins.
This is a general purpose I/O port. In external bus mode, this pin
functions as the ALE pin.
P50
ALE
P51
RD
D
70
71
68
69
(CMOS)
In external bus mode, this pin functions as the address load enable
(ALE) signal pin.
This is a general purpose I/O port. In external bus mode, this pin
functions as the RD pin.
D
(CMOS)
In external bus mode, this pin functions as the read strobe output (RD)
signal pin.
This is a general purpose I/O port. In external bus mode, when the WRE
bit in the EPCR register is set to “1”, this pin functions as the WRL pin.
P52
D
72
73
70
71
In external bus mode, this pin functions as the lower data write strobe
output (WRL) pin. When the WRE bit in the EPCR register is set to “0”,
this pin functions as a general purpose I/O port.
(CMOS)
WRL
P53
This is a general purpose I/O port. In external bus mode with 16-bit bus
width, when the WRE bit in the EPCR register is set to “1”, this pin
functions as the WRH pin.
D
In external bus mode with 16-bit bus width, this pin functions as the
upper data write strobe output (WRH) pin. When the WRE bit in the
EPCR register is set to “0”, this pin functions as a general purpose I/O
port.
(CMOS)
WRH
(Continued)
10
FUJITSU [ FUJITSU ]
