参数资料
型号: AT91SAM9261SB-CU
厂商: Atmel
文件页数: 6/39页
文件大小: 0K
描述: IC ARM9 MPU 217-LFBGA
标准包装: 126
系列: AT91SAM
核心处理器: ARM9
芯体尺寸: 16/32-位
速度: 190MHz
连通性: EBI/EMI,I²C,MMC,SPI,SSC,UART/USART,USB
外围设备: DMA,LCD,POR,PWM,WDT
输入/输出数: 96
程序存储器容量: 32KB(32K x 8)
程序存储器类型: ROM
RAM 容量: 48K x 8
电压 - 电源 (Vcc/Vdd): 1.08 V ~ 1.32 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 217-LFBGA
包装: 托盘
配用: AT91SAM9261-EK-ND - KIT EVAL FOR AT91SAM926EJ-S
AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9
14
6242ES–ATARM–11-Sep-09
AT91SAM9261S
7.2
Debug and Test Features
Integrated Embedded In-circuit Emulator Real-Time
– Two real-time Watchpoint Units
– Two Independent Registers: Debug Control Register and Debug Status Register
– Test Access Port Accessible through JTAG Protocol
– Debug Communications Channel
Debug Unit
–Two-pin UART
– Debug Communication Channel Interrupt Handling
– Chip ID Register
IEEE1149.1 JTAG Boundary-scan on All Digital Pins
7.3
Bus Matrix
Five Masters and Five Slaves handled
– Handles Requests from the ARM926EJ-S, USB Host Port, LCD Controller and the
Peripheral DMA Controller to internal ROM, internal SRAM, EBI, APB, LCD
Controller and USB Host Port.
– Round-Robin Arbitration (three modes supported: no default master, last accessed
default master, fixed default master)
– Burst Breaking with Slot Cycle Limit
One Address Decoder Provided per Master
– Three different slaves may be assigned to each decoded memory area: one for
internal boot, one for external boot, one after remap.
Boot Mode Select Option
– Non-volatile Boot Memory can be Internal or External.
– Selection is made by BMS pin sampled at reset.
Remap Command
– Allows Remapping of an Internal SRAM in Place of the Boot Non-Volatile Memory
– Allows Handling of Dynamic Exception Vectors
7.4
Peripheral DMA Controller
Transfers from/to peripheral to/from any memory space without intervention of the processor.
Next Pointer Support, forbids strong real-time constraints on buffer management.
Nineteen channels
– Two for each USART
– Two for the Debug Unit
– Two for each Serial Synchronous Controller
– Two for each Serial Peripheral Interface
– One for the Multimedia Card Interface
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