CXP81124 datasheet(5/27 Pages) SONY

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CXP81120/81124

(Port A)

8-bit output port.

(8 pins)

(Port B)

8-bit output port.

(8 pins)

(Port C)

8-bit I/O port. I/O can be set in a unit of single bits.

(8 pins)

(Port D)

8-bit I/O port. I/O and function as standby release input can be set in a unit of

single bits.

(8 pins)

(Port E)

4-bit port. Lower 2 bits

are for input; upper 2 bits

are for output.

(4 pins)

(Port F)

8-bit port. Lower 4 bits are for input; upper

4 bits are for output.

Lower 4 bits also serve as standby release

input.

(8 pins)

Serial clock (CH0) I/O.

Serial data (CH0) output.

Serial data (CH0) input.

Serial interface (CH0) chip select input.

(Port G)

5-bit port. Lower 2 bits

are for output; upper

3 bits are for I/O.

I/O can be set in a unit

of single bits.

(5 pins)

Connects a crystal oscillator for system clock. When supplying the external

clock, input the external clock to EXTAL pin and input opposite phase

clock to XTAL pin.

System reset; active at Low level. RST pin is I/O pin, which outputs “Low”

level by incorporated power-on reset function when power turns on.

(Mask option)

Pin Description

Symbol

PA0 to PA7

PB0 to PB7

PC0 to PC7

PD0 to PD7

PE0/INT0

PE1/EC/INT2

PE2/PWM0

PE3/PWM1

PF0/AN0

PF3/AN3

PF4/AN4

PF7/AN7

SCK0

SO0

SI0

CS0

PG3/TO

PG4

PG5/SCK1

PG6/SO1

PG7/SI1/INT1

EXTAL

XTAL

RST

Output

I/O

Input/Input

Input/Input/

Input

Output/Output

Input/Input

Output/Input

I/O

Output

Input

Output/Output

Output

I/O/I/O

I/O/Output

I/O/Input

Input

Output

I/O

Description

Input to request external interruption.

Active at the falling edge. (2 pins)

External event

input for

timer/counter.

12-bit PWM output. (2 pins)

Analog input to A/D

converter.

(8 pins)

Serial data (CH1)

input.

Timer/counter rectangular wave output.

Serial clock (CH1) I/O.

Serial data (CH1) output.

Input to request external

interruption. Active at the

falling edge.

CXP81124 Datasheet(PDF) 5 Page - Sony Corporation

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