參數(shù)資料
型號: AT91SAM9260B-CU-100
廠商: Atmel
文件頁數(shù): 9/45頁
文件大?。?/td> 0K
描述: IC MCU ARM9 217LFBGA
標(biāo)準(zhǔn)包裝: 126
系列: AT91SAM
核心處理器: ARM9
芯體尺寸: 16/32-位
速度: 180MHz
連通性: EBI/EMI,以太網(wǎng),I²C,MMC,SPI,SSC,UART/USART,USB
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 96
程序存儲(chǔ)器容量: 32KB(32K x 8)
程序存儲(chǔ)器類型: ROM
RAM 容量: 24K x 8
電壓 - 電源 (Vcc/Vdd): 1.65 V ~ 1.95 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 217-LFBGA
包裝: 托盤
17
SAM9260 [SUMMARY]
6221LS–ATARM–15-Oct-12
7.3
Peripheral DMA Controller
Acting as one Matrix Master
Allows data transfers from/to peripheral to/from any memory space without any intervention of the processor.
Next Pointer Support, forbids strong real-time constraints on buffer management.
Twenty-two channels
Two for each USART
Two for the Debug Unit
Two for each Serial Synchronous Controller
Two for each Serial Peripheral Interface
One for Multimedia Card Interface
One for Analog-to-Digital Converter
The Peripheral DMA Controller handles transfer requests from the channel according to the following priorities (Low to
High priorities):
DBGU Transmit Channel
USART5 Transmit Channel
USART4 Transmit Channel
USART3 Transmit Channel
USART2 Transmit Channel
USART1 Transmit Channel
USART0 Transmit Channel
SPI1 Transmit Channel
SPI0 Transmit Channel
SSC Transmit Channel
DBGU Receive Channel
USART5 Receive Channel
USART4 Receive Channel
USART3 Receive Channel
USART2 Receive Channel
USART1 Receive Channel
USART0 Receive Channel
ADC Receive Channel
SPI1 Receive Channel
SPI0 Receive Channel
SSC Receive Channel
MCI Transmit/Receive Channel
2
Internal ROM
X
-
UHP User Interface
X
----
3
External Bus Interface
X
XXXX
4
Internal Peripherals
X
-
Table 7-3.
SAM9260 Masters to Slaves Access (Continued)
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