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| 鍨嬭櫉(h脿o)锛� | PIC18F2450-I/ML |
| 寤犲晢锛� | Microchip Technology |
| 鏂囦欢闋佹暩(sh霉)锛� | 59/241闋� |
| 鏂囦欢澶у皬锛� | 0K |
| 鎻忚堪锛� | IC PIC MCU FLASH 8KX16 28QFN |
| 鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� | Asynchronous Stimulus 8-bit PIC® Microcontroller Portfolio |
| 妯�(bi膩o)婧�(zh菙n)鍖呰锛� | 61 |
| 绯诲垪锛� | PIC® 18F |
| 鏍稿績铏曠悊鍣細 | PIC |
| 鑺珨灏哄锛� | 8-浣� |
| 閫熷害锛� | 48MHz |
| 閫ｉ€氭€э細 | UART/USART锛孶SB |
| 澶栧湇瑷�(sh猫)鍌欙細 | 娆犲妾㈡脯/寰�(f霉)浣嶏紝HLVD锛孭OR锛孭WM锛學DT |
| 杓稿叆/杓稿嚭鏁�(sh霉)锛� | 23 |
| 绋嬪簭瀛樺劜(ch菙)鍣ㄥ閲忥細 | 16KB锛�8K x 16锛� |
| 绋嬪簭瀛樺劜(ch菙)鍣ㄩ鍨嬶細 | 闁冨瓨 |
| RAM 瀹归噺锛� | 768 x 8 |
| 闆诲 - 闆绘簮 (Vcc/Vdd)锛� | 4.2 V ~ 5.5 V |
| 鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒锛� | A/D 10x10b |
| 鎸暕鍣ㄥ瀷锛� | 鍏�(n猫i)閮� |
| 宸ヤ綔婧害锛� | -40°C ~ 85°C |
| 灏佽/澶栨锛� | 28-VQFN 瑁搁湶鐒婄洡 |
| 鍖呰锛� | 绠′欢 |
| 鐢�(ch菐n)鍝佺洰閷勯爜闈細 | 646 (CN2011-ZH PDF) |
| 閰嶇敤锛� | AC164322-ND - MODULE SOCKET MPLAB PM3 28/44QFN DM163025-ND - PIC DEM FULL SPEED USB DEMO BRD |
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151
XMEGA A [MANUAL]
8077I鈥揂VR鈥�11/2012
14.
TC0/1 鈥� 16-bit Timer/Counter Type 0 and 1
14.1
Features
16-bit timer/counter
32-bit timer/counter support by cascading two timer/counters
Up to four compare or capture (CC) channels
鈥� Four CC channels for timer/counters of type 0
鈥� Two CC channels for timer/counters of type 1
Double buffered timer period setting
Double buffered capture or compare channels
Waveform generation:
鈥� Frequency generation
鈥� Single-slope pulse width modulation
鈥� Dual-slope pulse width modulation
Input capture:
鈥� Input capture with noise cancelling
鈥� Frequency capture
鈥� Pulse width capture
鈥� 32-bit input capture
Timer overflow and error interrupts/events
One compare match or input capture interrupt/event per CC channel
Can be used with event system for:
鈥� Quadrature decoding
鈥� Count and direction control
鈥揅apture
Can be used with DMA and to trigger DMA transactions
High-resolution extension
鈥� Increases frequency and waveform resolution by 4x (2-bit) or 8x (3-bit)
Advanced waveform extension:
鈥� Low- and high-side output with programmable dead-time insertion (DTI)
鈥� Event controlled fault protection for safe disabling of drivers
14.2
Overview
Atmel AVR XMEGA devices have a set of flexible, 16-bit timer/counters (TC). Their capabilities include accurate program
execution timing, frequency and waveform generation, and input capture with time and frequency measurement of digital
signals. Two timer/counters can be cascaded to create a 32-bit timer/counter with optional 32-bit capture.
A timer/counter consists of a base counter and a set of compare or capture (CC) channels. The base counter can be
used to count clock cycles or events. It has direction control and period setting that can be used for timing. The CC
channels can be used together with the base counter to do compare match control, frequency generation, and pulse
width waveform modulation, as well as various input capture operations. A timer/counter can be configured for either
capture or compare functions, but cannot perform both at the same time.
A timer/counter can be clocked and timed from the peripheral clock with optional prescaling or from the event system.
The event system can also be used for direction control and capture trigger or to synchronize operations.
There are two differences between timer/counter type 0 and type 1. Timer/counter 0 has four CC channels, and
timer/counter 1 has two CC channels. All information related to CC channels 3 and 4 is valid only for timer/counter 0.
Only Timer/Counter 0 has the split mode feature that split it into 2 8-bit Timer/Counters with four compare channels each.
Some timer/counters have extensions to enable more specialized waveform and frequency generation. The advanced
waveform extension (AWeX) is intended for motor control and other power control applications. It enables low- and high-
side output with dead-time insertion, as well as fault protection for disabling and shutting down external drivers. It can
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