Evido EAD-D2000 Manual do Utilizador descarregar pdf (Página 32)

CT-CCV6X Intel Atom D2000/N2000 COM Express Type 6 Module

３２

GPIO Input/Output Select Register 2 (Offset GPIOBASE+0x34)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

GPIO7

GPIO6

GPIO5

GPIO4

Bit X = 0 means Output Pin

Bit X = 1 means Input Pin

4.16.2.3 GPIO Level for Input or Output Register 1

(Offset GPIOBASE+0x0C)

If Pin X is configured as output, the output value (0 or 1) could be selected by

user.

If it is programmed as an input, this register reflects the state of the input

signal.

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

GPIO3

GPIO2

GPIO1

GPIO0

GPIO Level for Input or Output Register 1

(Offset GPIOBASE+0x38)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

GPIO7

GPIO6

GPIO5

GPIO4

4.16.2.4 GPIO Signal Invert Register (Offset 0x2C)

It will invert the polarity of the Input Port register data.

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

GPIO3

GPIO2

GPIO1

GPIO0

Bit X = 0 means Polarity is retained

Bit X = 1 means Polarity is inverted

[Note] The GPIO4~GPIO7 can’t be set to inverted.

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