參數(shù)資料
型號: MR80C52EXXX-16SHXXX:R
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQCC44
封裝: LCC-44
文件頁數(shù): 71/143頁
文件大?。?/td> 4602K
33
XMEGA A3BU [DATASHEET]
8362F–AVR–02/2013
Figure 16-7. Input sensing system overview.
When a pin is configured with inverted I/O, the pin value is inverted before the input sensing.
16.5
Alternate Port Functions
Most port pins have alternate pin functions in addition to being a general purpose I/O pin. When an alternate function is
enabled, it might override the normal port pin function or pin value. This happens when other peripherals that require pins
are enabled or configured to use pins. If and how a peripheral will override and use pins is described in the section for
that peripheral. “Pinout and Pin Functions” on page 55 shows which modules on peripherals that enable alternate
functions on a pin, and which alternate functions that are available on a pin.
D
Q
R
INVERTED I/O
Interrupt
Control
D
Q
R
Pxn
Synchronizer
INn
EDGE
DETECT
Synchronous sensing
EDGE
DETECT
Asynchronous sensing
IRQ
Synchronous
Events
Asynchronous
Events
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