![Wiznet W7500 Скачать руководство пользователя страница 153](http://html.mh-extra.com/html/wiznet/w7500/w7500_reference-manual_990600153.webp)
W7500x Reference Manual Version1.1.0
153 / 399
18
General-purpose I/Os(GPIO)
18.1
Introduction
The GPIO(General-Purpose I/O Port) is composed of three physical GPIO blocks, each
corresponding to an individual GPIO port(PORT A, PORT B and PORT C). The GPIO supports up
to 34 programmable input/output pins, depending on the peripherals being used.
18.2
Features
The GPIO peripheral consists the following features.
GPIO_DATAOUT can SET/CLEAR by the SET register and CLEAR register. (1 for set
and 0 for clear)
Mask registers allow treating sets of port bits as a group leaving other bits
unchanged.
Up to 34 GPIOs depending on configuration
Programmable control for GPIO interrupts
Interrupt generation masking
Edge-triggered on rising, falling, or both
18.3
Functional description
Figure 13 shows the GPIO block diagram.
AHB
interface
Register
Block
0
1
0
1
GPIO_DATAOUT
GPIO_DATAIN
GPIO_SET[15:0]
ALTF_SET
GPIOINT[15:0]
Alternate
function signals
I/O pad
Pin Mux
Figure 13. GPIO block diagram
Figure 14 shows the operation sequences available for the GPIO.
The pad alternate function is using the pad alternate function select register.
Refer to ‘Alternate Function Controller(AFC)’ for more details about each register.
Содержание W7500
Страница 28: ...W7500x Reference Manual Version1 1 0 28 399 Memory map Figure 2 W7500x memory map ...
Страница 324: ...W7500x Reference Manual Version1 1 0 324 399 Figure 46 UART character frame ...
Страница 391: ...W7500x Reference Manual Version1 1 0 391 399 1 SSP1 must not drive the SSPTXD output in slave mode ...