ST72260G1B6/XXX View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72260G1B6/XXX

8-BIT MCU WITH FLASH OR ROM MEMORY, ADC, TWO 16-BIT TIMERS, I2C, SPI, SCI INTERFACES

STMicroelectronics 

ST72260G, ST72262G, ST72264G

I/O PORTS (Cont’d)

Table 8. I/O Configurations

PAD

VDD

RPU

Hardware Configuration

NOTE 3

DR REGISTER ACCESS

PULL-UP

CONDITION

DR

W

REGISTER

R

DATA BUS

FROM

OTHER

PINS

ALTERNATE INPUT

To on-chip peripheral

EXTERNAL INTERRUPT

SOURCE (eix)

INTERRUPT COMBINATIONAL POLARITY

CONDITION

LOGIC SELECTION

ANALOG INPUT

PAD

VDD

NOTE 3

RPU

DR REGISTER ACCESS

DR

R/W

REGISTER

DATA BUS

PAD

NOTE 3

VDD

RPU

DR REGISTER ACCESS

DR

R/W

REGISTER

DATA BUS

ALTERNATE

ENABLE

BIT

ALTERNATE

OUTPUT

From on-chip peripheral

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.

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