48
•
Pin Description
LQFP
QFP
Pin Name
Circuit Type
Function
80
82
X0
A
Oscillator pin
81
83
X1
A
Oscillator pin
78
80
X0A
A
32 kHz Oscillator pin
77
79
X1A
A
32 kHz Oscillator pin
75
77
RSTX
B
Reset input pin
P00 to P07
General-purpose I/O ports
A pull-up resistor can be attached using the pull-up resistor setting
register (RDR0) (RD07 to RD00 = 1). (Invalid when set to output)
AD00 to
AD07
In the multiplex mode, the pins function as external address/data bus
lower I/O pins.
83 to 90
85 to 92
D00 to D07
C
(CMOS)
In the non-multiplex mode, they function as external data bus lower
output pins.
P10 to P17
General-purpose I/O ports
A pull-up resistor can be attached using the pull-up resistor setting
register (RDR1) (RD17 to RD10 = 1). (Invalid when set to output)
AD08 to
AD15
In the multiplex mode, the pins function as external address/data bus
upper I/O pins.
91 to 98
93 to
100
D08 to D15
C
(CMOS)
In the non-multiplex mode, they function as external data upper output
pins.
P20 to P23
General-purpose I/O ports
When the corresponding bit of the HACR register is 0, the pins function
as address upper output pins (A20 to A23).
A16 to A19
When the multiplex mode is enabled and the corresponding bit of the
HACR register is 1, the pins function as general-perpose I/O port.
99
100
1 and 2
1 to 4
A16 to A19
E
(CMOS/H)
In the non-multiplex mode, they function as external address upper
output pins.
P24 to P27
General-purpose I/O ports
When the corresponding bit of the HACR register is 0, the pins function
as address upper output pins (A20 to A23).
A20 to A23
When the multiplex mode is enabled and the corresponding bit of the
HACR register is 1, the pins function as general-perpose I/O port.
A20 to A23
In the non-multiplex mode, they function as external address upper
output pins.
3 to 6
5 to 8
PPG0 to 3
E
(CMOS/H)
The pins function as PPG timer output pin.