CXP81720B 查看數據表（PDF） - Sony Semiconductor

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CXP81720B

CMOS 8-bit Single Chip Microcomputer

Sony Semiconductor 

CXP81720B/81724B

PIn

Circuit format

Port I

Port I data

When reset

PI1/RMC

PI4/INT1/NMI

PI7/SI1

3 pins

PI5/SCK1

PI6/SO1

2 pins

Port I direction

"0" when reset

Data bus

RD (Port I)

PI1: Remote control circuit

PI4: Interruption circuit

PI7: Serial interface CH1

Port I

IP

Schmitt input

Port I function selection

Serial interface

CH1

Port I data

Port I direction

"0" when reset

Data bus

RD (Port I)

MPX

MPX

IP

Serial interface CH1

PI6 is not Schmitt input

Port J

Port J data

PJ0

to

PJ7

Port J direction

"0" when reset

IP

Data bus

8 pins

RD (Port J) Edge detection

Standby release

Hi-Z

Hi-Z

Hi-Z

CS0

SI0

2 pins

Schmitt input

IP

CS

SI

Serial interface CH0

Hi-Z

SO0

1 pin

SO

Serial interface CH0

SO output enable

– 10 –

Hi-Z

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