Lantronix XPort Manual de usuario descargar pdf (Pagina 49)

5: GPIO Interface

XPort™ User Guide 49

Command details:

1Bh = command 1Bh

01h, 00h, 00h, 00h = the mask that determines which GPIOs will be changed.

bit 0 is 1 → GPIO0 will be changed.

bit 1 is 0 → GPIO1 will remain the same.

00h, 00h, 00h, 00h = the new states

bit 0 is 0 → GPIO0 will become 0.

bit 1 is ignored since it is masked out.

Response details:

1Bh = response to command 1Bh

05h, 00h, 00h, 00h =

bit 0 is 1 → GPIO0 = 1

bit 1 is 0 → GPIO1 = 0

bit 2 is 1 → GPIO2 = 1

The other bits are ignored because there are only three configurable pins on

the XPort.

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Lantronix XPort Manual de usuario Pagina 49