ST72141K2 datasheet(33/132 Pages) STMICROELECTRONICS

Il numero della parte	ST72141K2

Spiegazioni elettronici	8-BIT MCU WITH ELECTRIC-MOTOR CONTROL, ADC, 16-BIT TIMERS, SPI INTERFACE

PDF	132 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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ST72141K

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I/O PORTS (Cont’d)

Table 6. I/O Port Configurations

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.

Hardware Configuration

CONFIGURATION

PAD

VDD

RPU

EXTERNAL INTERRUPT

POLARITY

DATA BUS

PULL-UP

INTERRUPT

DR REGISTER ACCESS

FROM

OTHER

PINS

SOURCE (eix)

SELECTION

CONFIGURATION

ALTERNATE INPUT

NOT IMPLEMENTED IN

TRUE OPEN DRAIN

I/O PORTS

ANALOG INPUT

PAD

RPU

DATA BUS

DR REGISTER ACCESS

R/W

VDD

ALTERNATE

ENABLE

OUTPUT

NOT IMPLEMENTED IN

TRUE OPEN DRAIN

I/O PORTS

PAD

RPU

DATA BUS

DR REGISTER ACCESS

R/W

VDD

ALTERNATE

ENABLE

OUTPUT

NOT IMPLEMENTED IN

TRUE OPEN DRAIN

I/O PORTS

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