參數(shù)資料
型號: AT91FR4042-CI
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: AT91 ARM Thumb Microcontrollers
中文描述: 32-BIT, FLASH, 70 MHz, RISC MICROCONTROLLER, PBGA121
封裝: 10 X 10 MM, 1.20 MM HEIGHT, BGA-121
文件頁數(shù): 7/22頁
文件大小: 195K
代理商: AT91FR4042-CI
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AT91FR4042
2648D–ATARM–03/04
The Power-saving (PS) module implements the Idle Mode (ARM7TDMI core clock
stopped until the next interrupt) and enables the user to adapt the power consumption of
the microcontroller to application requirements (independent peripheral clock control).
The Advanced Interrupt Controller (AIC) controls the internal interrupt sources from the
internal peripherals and the four external interrupt lines (including the FIQ) to provide an
interrupt and/or fast interrupt request to the ARM7TDMI. It integrates an 8-level priority
controller, and, using the Auto-vectoring feature, reduces the interrupt latency time.
The Parallel Input/Output Controller (PIO) controls up to 32 I/O lines. It enables the user
to select specific pins for on-chip peripheral input/output functions, and general-purpose
input/output signal pins. The PIO controller can be programmed to detect an interrupt on
a signal change from each line.
The Watchdog (WD) can be used to prevent system lock-up if the software becomes
trapped in a deadlock.
The Special Function (SF) module integrates the Chip ID, the Reset Status and the Pro-
tect registers.
User Peripherals
Two USARTs, independently configurable, enable communication at a high baud rate in
synchronous or asynchronous mode. The format includes start, stop and parity bits and
up to 8 data bits. Each USART also features a Timeout and a Time Guard register, facil-
itating the use of the two dedicated Peripheral Data Controller (PDC) channels.
The 3-channel, 16-bit Timer Counter (TC) is highly programmable and supports capture
or waveform modes. Each TC channel can be programmed to measure or generate dif-
ferent kinds of waves, and can detect and control two input/output signals. The TC has
also 3 external clock signals.
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AT91FR4081 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91 ARM Thumb Microcontrollers
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AT91FR4081-40CI 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller