參數(shù)資料
型號: AT91SAM7S16-MU
廠商: Atmel
文件頁數(shù): 9/50頁
文件大?。?/td> 0K
描述: MCU ARM 16K HI SPD FLASH 48-QFN
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
標準包裝: 260
系列: SAM7S
核心處理器: ARM7
芯體尺寸: 16/32-位
速度: 55MHz
連通性: I²C,SPI,SSC,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,DMA,POR,PWM,WDT
輸入/輸出數(shù): 21
程序存儲器容量: 16KB(16K x 8)
程序存儲器類型: 閃存
RAM 容量: 4K x 8
電壓 - 電源 (Vcc/Vdd): 1.65 V ~ 1.95 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 48-QFN 裸露焊盤
包裝: 托盤
配用: AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9
AT91SAM7S-EK-ND - KIT EVAL FOR ARM AT91SAM7S
17
SAM7S Series [DATASHEET]
6175KS–ATARM–25-Oct-12
7.4
Peripheral DMA Controller
Handles data transfer between peripherals and memories
Eleven channels: SAM7S512/256/128/64/321/161
Nine channels: SAM7S32/16
Two for each USART
Two for the Debug Unit
Two for the Serial Synchronous Controller
Two for the Serial Peripheral Interface
One for the Analog-to-digital Converter
Low bus arbitration overhead
One Master Clock cycle needed for a transfer from memory to peripheral
Two Master Clock cycles needed for a transfer from peripheral to memory
Next Pointer management for reducing interrupt latency requirements
Peripheral DMA Controller (PDC) priority is as follows (from the highest priority to the lowest):
Receive
DBGU
Receive
USART0
Receive
USART1
Receive
SSC
Receive
ADC
Receive
SPI
Transmit
DBGU
Transmit
USART0
Transmit
USART1
Transmit
SSC
Transmit
SPI
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