MB90480/485 Series
■ PIN DESCRIPTIONS
Pin No.
I/O
circuit
Pin name
Function
QFP*1 LQFP*2
type*3
82
83
80
79
77
80
81
78
77
75
X0
X1
A
A
A
A
B
Clock (oscillator) input pin
Clock (oscillator) output pin
X0A
X1A
RST
Clock (32 kHz oscillator) input pin
Clock (32 kHz oscillator) output pin
Reset input pin
This is a general purpose I/O port. A setting in the port 0 input
resistance register (RDR0) can be used to apply pull-up resistance
(RD00-RD07 = “1”) . (Disabled when pin is set for output.)
P00 to P07
C
85 to 92 83 to 90 AD00 to
AD07
In multiplex mode, these pins function as the external address/data
bus low I/O pins.
(CMOS)
In non-multiplex mode, these pins function as the external data bus
low output pins.
D00 to D07
This is a general purpose I/O port. A setting in the port 1 input
resistance register (RDR1) can be used to apply pull-up resistance
(RD10-RD17 = “1”) . (Disabled when pin is set for output.)
P10 to P17
93 to
100
C
91 to 98 AD08 to
In multiplex mode, these pins function as the external address/data
bus high I/O pins.
(CMOS)
AD15
In non-multiplex mode, these pins function as the external data bus
high output pins.
D08 to D15
This is a general purpose I/O port. When the bits of external address
output control register (HACR) are set to "1" in external bus mode,
these pins function as general purpose I/O ports.
P20 to P23
When the bits of external address output control register (HACR) are
set to "0" in multiplex mode, these pins function as address high
output pins (A16-A19).
When the bits of external address output control register (HACR) are
set to "0" in non-multiplex mode, these pins function as address high
output pins (A16-A19).
99,100,
1 to 4
E
1, 2
(CMOS/H)
A16 to A19
P24 to P27
This is a general purpose I/O port. When the bits of external address
output control register (HACR) are set to "1" in external bus mode,
these pins function as general purpose I/O ports.
When the bits of external address output control register (HACR) are
set to "0" in multiplex mode, these pins function as address high
output pins (A20-A23).
When the bits of external address output control register (HACR) are
set to "0" in non-multiplex mode, these pins function as address high
output pins (A20-A23).
E
5 to 8
3 to 6
(CMOS/H)
A20 to A23
PPG0 to
PPG3
Output pins for PPG.
P30
A00
This is a general purpose I/O port.
E
9
7
In non-multiplex mode, this pin functions as an external address pin.
8/16-bit up/down timer input pin (ch.0) .
(CMOS/H)
AIN0
(Continued)
8
FUJITSU [ FUJITSU ]
