ST7FDALIF2M6 datasheet(50/141 Pages) STMICROELECTRONICS

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I/O PORTS (Cont’d)

10.7 DEVICE-SPECIFIC I/O PORT CONFIGURATION

The I/O port register configurations are summa-

rised as follows.

Standard Ports

PA7:0, PB6:0

Interrupt Ports

Ports where the external interrupt capability is

selected using the EISR register

Table 10. Port Configuration (Standard ports)

Note: On ports where the external interrupt capability is selected using the EISR register, the configura-

tion will be as follows:

Table 11. I/O Port Register Map and Reset Values

MODE

DDR

floating input

pull-up input

open drain output

push-pull output

MODE

DDR

floating input

pull-up interrupt input

open drain output

push-pull output

Port

Pin name

Input

Output

OR = 0

OR = 1

OR = 0

OR = 1

Port A

PA7:0

floating

pull-up

open drain

push-pull

Port B

PB6:0

floating

pull-up

open drain

push-pull

Port

Pin name

Input

Output

OR = 0

OR = 1

OR = 0

OR = 1

Port A

PA7:0

floating

pull-up interrupt

open drain

push-pull

Port B

PB6:0

floating

pull-up interrupt

open drain

push-pull

Address

(Hex.)

Label

76543

210

0000h

PADR

Reset Value

MSB

111

LSB

0001h

PADDR

Reset Value

MSB

000

LSB

0002h

PAOR

Reset Value

MSB

000

LSB

0003h

PBDR

Reset Value

MSB

111

LSB

0004h

PBDDR

Reset Value

MSB

000

LSB

0005h

PBOR

Reset Value

MSB

000

LSB

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