ST7PLITES5Y0B6 데이터 시트보기 (PDF) - STMicroelectronics

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ST7PLITES5Y0B6

8-BIT MICROCONTROLLER WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI

STMicroelectronics 

ST7LITE0x, ST7LITESx

I/O PORTS (Cont’d)

Table 10. I/O Port Configurations

PAD

VDD

RPU

Hardware Configuration

DR REGISTER ACCESS

PULL-UP

CONDITION

DR

W

REGISTER

R

DATA BUS

PAD

VDD

RPU

FROM

OTHER

PINS

INTERRUPT

CONDITION

ALTERNATE INPUT

POLARITY

SELECTION

EXTERNAL INTERRUPT

SOURCE (eix)

ANALOG INPUT

DR REGISTER ACCESS

DR

R/W

REGISTER

DATA BUS

PAD

VDD

RPU

ALTERNATE

ENABLE

ALTERNATE

OUTPUT

DR REGISTER ACCESS

DR

R/W

REGISTER

DATA BUS

ALTERNATE

ENABLE

ALTERNATE

OUTPUT

Notes:

1. When the I/O port is in input configuration and the associated alternate function is enabled as an output,

reading the DR register will read the alternate function output status.

2. When the I/O port is in output configuration and the associated alternate function is enabled as an input,

the alternate function reads the pin status given by the DR register content.

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