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ML610Q411/ML610Q412/ML610Q415 User’s Manual
Chapter 1
Overview
1 – 17
Pin name
I/O
Description
Primary/
Secondary/
Tertiary
Logic
UART
TXD0
O
UART data output pin. This pin is used as the secondary function of the
P43 pin.
Secondary
Positive
RXD0
I
UART data input pin. This pin is used as the secondary function of the
P42 or the primary function of the P02 pin.
Primary/Se
condary
Positive
I
2C bus interface
SDA
I/O
I
2C data input/output pin. This pin is used as the secondary function of the
P40 pin. This pin has an NMOS open drain output. When using this pin as
a function of the I
2C, externally connect a pull-up resistor.
Secondary
Positive
SCL
O
I
2C clock output pin. This pin is used as the secondary function of the P41
pin. This pin has an NMOS open drain output. When using this pin as a
function of the I
2C, externally connect a pull-up resistor.
Secondary
Positive
Synchronous serial (SSIO)
SCK0
I/O Synchronous serial clock input/output pin. This pin is used as the tertiary
function of the P41 or P45 pin.
Tertiary
—
SIN0
I
Synchronous serial data input pin. This pin is used as the tertiary function
of the P40 or P44 pin.
Tertiary
Positive
SOUT0
O
Synchronous serial data output pin. This pin is used as the tertiary
function of the P42 or P46 pin.
Tertiary
Positive
PWM
PWM0
O
PWM0 output pin. This pin is used as the tertiary function of the P43 or
P34 pin.
Tertiary
Positive
T02P0CK
O
PWM0 external clock input pin. This pin is used as the primary function of
the P44 pin.
Primary
—
External interrupt
NMI
I
External non-maskable interrupt input pin. An interrupt is generated on
both edges.
Primary
Positive/
negative
EXI0-3
I
External maskable interrupt input pins. Interrupt enable and edge selection
can be performed for each bit by software. These pins are used as the
primary functions of the P00-P03 pins.
Primary
Positive/
negative
Capture
CAP0
I
Primary
Positive/
negative
CAP1
I
Capture trigger input pins. The value of the time base counter is captured
in the register synchronously with the interrupt edge selected by software.
These pins are used as the primary functions of the P00 pin(CAP0) and
P01 pin(CAP1).
Primary
Positive/
negative
Timer
T02P0CK
I
External clock input pin used for both Timer 0 and Timer 2. The clocks for
these timers are selected by software. This pin is used as the primary
function of the P44 pin.
Primary
—
T13P1CK
I
External clock input pin used for both Timer 1 and Timer 3. The clocks for
these timers are selected by software. This pin is used as the primary
function of the P45 pin.
Primary
—
Buzzer
BZ0
O
Buzzer signal output pin. This pin is used as the secondary function of the
P22 pin.
Secondary
Positive/
negative
LED drive
LED0-2
O
Nch open drain output pins to drive LED.
Primary
Positive/
negative