SN32F280 Series
32-Bit Cortex-M0 Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 77
Version 1.1
5
5
5
GENERAL PURPOSE I/O PORT (GPIO)
5.1 OVERVIEW
Digital ports can be configured input/output by SW.
Each individual port pin can serve as external interrupt input pin.
Interrupts can be configured on single falling or rising edges and on both edges.
The I/O configuration registers control the electrical characteristics of the pads.
Internal pull-up/pull-down resistor.
Most of the I/O pins are mixed with analog pins and special function pins.
5.2 GPIO MODE
All GPIO pins are inputs and floating by default. The MODE bits in the
(n=0,1,2,3) register allow the
selection of on-chip pull-up or pull-down resistors for each pin or select the repeater mode.
Содержание SN32F280 Series
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