参数资料
| 型号： | AT91SAM9261-CJ |
| 厂商： | Atmel |
| 文件页数： | 10/44页 |
| 文件大小： | 0K |
| 描述： | IC ARM9 MPU 217BGA |
| 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： | 192K 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 |
| 其它名称： | AT91SAM9261B-CJ AT91SAM9261B-CJ-ND |
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18
6062LS–ATARM–23-Mar-09
AT91SAM9261
8.1.1
Internal Memory Mapping
Table 8-3 summarizes the Internal Memory Mapping for each Master, depending on the Remap
status and the BMS state at reset.
Note:
1. EBI NCS0 is to be connected to a 16-bit non-volatile memory. The access configuration is defined by the reset state of SMC
Setup, SMC Pulse, SMC Cycle and SMC Mode CS0 registers.
8.1.1.1
Internal SRAM
The AT91SAM9261 embeds a high-speed 160 Kbyte SRAM. This Internal SRAM is split into
three areas. Its Memory Mapping is detailed in Table 8-3 above.
Internal SRAM A is the ARM926EJ-S Instruction TCM and the user can map this SRAM
block anywhere in the ARM926 instruction memory space using CP15 instructions. This
SRAM block is also accessible by the ARM926 Data Master and by the AHB Masters through
the AHB bus at address 0x0010 0000.
Internal SRAM B is the ARM926EJ-S Data TCM and the user can map this SRAM block
anywhere in the ARM926 data memory space using CP15 instructions. This SRAM block is
also accessible by the ARM926 Data Master and by the AHB Masters through the AHB bus
at address 0x0020 0000.
Internal SRAM C is only accessible by all the AHB Masters.
After reset and until the Remap Command is performed, this SRAM block is accessible
through the AHB bus at address 0x0030 0000 by all the AHB Masters.
After Remap, this SRAM block also becomes accessible through the AHB bus at address
0x0 by the ARM926 Instruction and the ARM926 Data Masters.
Within the 160 Kbyte SRAM size available, the amount of memory assigned to each block is
software programmable as a multiple of 16 Kbytes according to Table 8-4. This table provides
the size of the Internal SRAM C according to the size of the Internal SRAM A and the Internal
SRAM B.
Note that among the ten 16 Kbyte blocks making up the Internal SRAM, two are permanently
assigned to Internal SRAM C.
At reset, the whole memory (160 Kbytes) is assigned to Internal SRAM C.
Table 8-3.
Internal Memory Mapping
Address
Master 0: ARM926 Instruction
Master 1: ARM926 Data
REMAP(RCB0) = 0
REMAP (RCB0) = 1
REMAP (RCB1) = 0
REMAP (RCB1) = 1
BMS = 1
BMS = 0
BMS = 1
BMS = 0
0x0000 0000
Int. ROM
EBI NCS0(1)
Int. RAM C
Int. ROM
EBI NCS0(1)
Int. RAM C
Table 8-4.
Internal SRAM Block Size
Internal SRAM C
Internal SRAM A (ITCM)
0
16 Kbytes
32 Kbytes
64 Kbytes
Internal SRAM B (DCTM)
0
160 Kbytes
144 Kbytes
128 Kbytes
96 Kbytes
16 Kbytes
144 Kbytes
128 Kbytes
112 Kbytes
80 Kbytes
32 Kbytes
128 Kbytes
112 Kbytes
96 Kbytes
64 Kbytes
96 Kbytes
80 Kbytes
64 Kbytes
32 Kbytes
相关PDF资料 |
PDF描述 |
|---|---|
| AT91SAM9261SB-CU-999 | IC MCU ARM9 ULTRA LP 217LFBGA |
| AT91SAM9261SB-CU | IC ARM9 MPU 217-LFBGA |
| AT91SAM9G10-CU | IC MCU ARM9 SAMPLING 217CBGA |
| AT91SAM9G20B-CFU | IC MCU ARM9 247-LFBGA |
| AT91SAM9N12-CU | IC MCU ARM9 217-LFBGA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT91SAM9261-CJ-999 | 功能描述:ARM微控制器 - MCU BGA Ind. Temp RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| AT91SAM9261-EK | 功能描述:开发板和工具包 - ARM Supports AT91SAM9261 ARM926EJS dev & eval RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
| AT91SAM9261S | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:AT91 ARM Thumb-based Microcontrollers |
| AT91SAM9261S_09 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:AT91 ARM Thumb-based Microcontrollers |
| AT91SAM9261SB-CU | 功能描述:ARM微控制器 - MCU 32-bit RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
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