參數(shù)資料
型號: ATSAM3U4EA-CU
廠商: Atmel
文件頁數(shù): 20/60頁
文件大小: 0K
描述: IC MCU 32BIT 256KB FLSH 144LFBGA
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
Cortex®-M3 Introduction and Specific SAM3U Implementation
SAM3U Cortex-M3 Based MCU Introduction
Touch Solutions on the Atmel ARM? Cortex?-M3 Based Flash Microcontrollers
標(biāo)準(zhǔn)包裝: 184
系列: SAM3U
核心處理器: ARM? Cortex?-M3
芯體尺寸: 32-位
速度: 96MHz
連通性: EBI/EMI,I²C,MMC,SPI,SSC,UART/USART,USB
外圍設(shè)備: 欠壓檢測/復(fù)位,DMA,I²S,POR,PWM,WDT
輸入/輸出數(shù): 96
程序存儲器容量: 256KB(256K x 8)
程序存儲器類型: 閃存
RAM 容量: 52K x 8
電壓 - 電源 (Vcc/Vdd): 1.62 V ~ 1.95 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b,8x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 144-LFBGA
包裝: 托盤
配用: ATSAM3U-EK-ND - KIT EVAL FOR AT91SAM3U CORTEX
27
6430FS–ATARM–10-Feb-12
SAM3U Series
7.4
Matrix Slaves
The Bus Matrix of the SAM3U manages 10 slaves. Each slave has its own arbiter, allowing a dif-
ferent arbitration per slave.
7.5
Master to Slave Access
All the Masters can normally access all the Slaves. However, some paths do not make sense,
for example allowing access from the USB Device High speed DMA to the Internal Peripherals.
Thus, these paths are forbidden or simply not wired, and shown as “–” in Table 7-3 below.
Table 7-2.
List of Bus Matrix Slaves
Slave 0
Internal SRAM0
Slave 1
Internal SRAM1
Slave 2
Internal ROM
Slave 3
Internal Flash 0
Slave 4
Internal Flash 1
Slave 5
USB Device High Speed Dual Port RAM (DPR)
Slave 6
NAND Flash Controller RAM
Slave 7
External Bus Interface
Slave 8
Low Speed Peripheral Bridge
Slave 9
High Speed Peripheral Bridge
Table 7-3.
SAM3U Master to Slave Access
Slaves
Masters
0
1
234
Cortex-M3
I/D Bus
Cortex-M3 S
Bus
PDC
USB Device
High Speed
DMA
Controller
0
Internal SRAM0
XXXX
1
Internal SRAM1
XXXX
2
Internal ROM
X
X
3
Internal Flash 0
X
––––
4
Internal Flash 1
X
––––
5
USB Device High Speed Dual Port RAM (DPR)
X
6
NAND Flash Controller RAM
XXXX
7
External Bus Interface
XXXX
8
Low Speed Peripheral Bridge
X
9
High Speed Peripheral Bridge
X
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