ST7DALI datasheet(48/141 Pages) STMICROELECTRONICS

No de pièce	ST7DALI

Description	8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI, DALI

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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ST7DALI

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I/O PORTS (Cont’d)

Table 9. I/O 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.

3. For true open drain, these elements are not implemented.

Hardware Configuration

NOTE 3

CONDITION

PAD

VDD

RPU

EXTERNAL INTERRUPT

POLARITY

DATA BUS

PULL-UP

INTERRUPT

DR REGISTER ACCESS

W

R

FROM

OTHER

PINS

SOURCE (eix)

SELECTION

DR

REGISTER

CONDITION

ALTERNATE INPUT

ANALOG INPUT

To on-chip peripheral

COMBINATIONAL

LOGIC

NOTE 3

PAD

RPU

DATA BUS

DR

DR REGISTER ACCESS

R/W

VDD

REGISTER

PAD

RPU

DATA BUS

DR

DR REGISTER ACCESS

R/W

VDD

ALTERNATE

ENABLE

OUTPUT

REGISTER

BIT

From on-chip periphera

l

NOTE 3

1

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