ATXMEGA64A1 datasheet(46/99 Pages) ATMEL

tên linh kiện	ATXMEGA64A1

Giải thích chi tiết về linh kiện	8/16-bit XMEGA A1 Microcontroller

PDF	99 Pages

Scroll/Zoom	100%

nhà sản xuất	ATMEL [ATMEL Corporation]

Trang chủ	http://www.atmel.com

Logo

46 / 99 page

8067I–AVR–04/09

XMEGA A1

26.3

Input Selection

The Analog comparators have a very flexible input selection and the two comparators grouped

in a pair may be used to realize a window function. One pair of analog comparators is shown in

Figure 26-1 on page 45.

• Input selection from pin

– Pin 0, 1, 2, 3, 4, 5, 6 selectable to positive input of analog comparator

– Pin 0, 1, 3, 5, 7 selectable to negative input of analog comparator

• Internal signals available on positive analog comparator inputs

– Output from 12-bit DAC

• Internal signals available on negative analog comparator inputs

– 64-level scaler of the VCC, available on negative analog comparator input

– Bandgap voltage reference

– Output from 12-bit DAC

26.4

Window Function

The window function is realized by connecting the external inputs of the two analog comparators

in a pair as shown in Figure 26-2.

Figure 26-2. Analog comparator window function

AC0

AC1

Input signal

Upper limit of window

Lower limit of window

Interrupt

sensitivity

control

Interrupts

Events

ATXMEGA64A1 bảng dữ liệu(PDF) 46 Page - ATMEL Corporation