5
MB90620A Series
s PIN DESCRIPTION
(Continued)
Pin no.
Pin name
Circuit type
Function
77
78
X1A
X0A
A
(Oscillation)
Crystal oscillator pins (32 kHz)
79
VSS
Power supply
Digital circuit power supply (GND) pin
80
81
X0
X1
A
(Oscillation)
Crystal/FAR oscillator pins (4 MHz)
82
VCC
Power supply
Digital circuit power supply pin
83 to 89
P00 to P06
M
(CMOS/H)
General-purpose I/O ports
At this pin, a pull-up resistor is added in the input mode depending
on the settings of the pull-up resistor setting register.
INT0 to INT6
External interrupt request input pins
When external interrupts are enabled, these inputs may be used at
any time; therefore, it is necessary to stop output by other functions
on these pins, except when using them for output deliberately.
90
P07
G
(CMOS)
General-purpose I/O port
At this pin, a pull-up resistor is added in the input mode depending
on the settings of the pull-up resistor setting register.
91 to 98
P10 to P17
G
(CMOS)
General-purpose I/O ports
At this pin, a pull-up resistor is added in the input mode depending
on the settings of the pull-up resistor setting register.
99, 100
1, 2
P20 to P23
G
(CMOS)
General-purpose I/O ports
At this pin, a pull-up resistor is added in the input mode depending
on the settings of the pull-up resistor setting register.
3
P24
F
(CMOS/H)
General-purpose I/O port
At this pin, a pull-up resistor is added in the input mode depending
on the settings of the pull-up resistor setting register.
SIN0
UART serial data input pin
During UART input operations, these inputs may be used at any
time; therefore, it is necessary to stop output by other functions on
these pins, except when using them for output deliberately.
4
P25
G
(CMOS)
General-purpose I/O port
At this pin, a pull-up resistor is added in the input mode depending
on the settings of the pull-up resistor setting register.
SOT0
UART serial data output pin
This function is available when the UART serial data output is
enabled.
5
P26
F
(CMOS/H)
General-purpose I/O port
At this pin, a pull-up resistor is added in the input mode depending
on the settings of the pull-up resistor setting register.
SCK0
UART serial data I/O pin
This function is available when the UART clock output is enabled.
During UART input operations, these inputs may be used at any
time; therefore, it is necessary to stop output by other functions on
these pins, except when using them for output deliberately.