参数资料
型号: AT91SAM9261-CJ
厂商: Atmel
文件页数: 11/44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
19
6062LS–ATARM–23-Mar-09
AT91SAM9261
The memory blocks assigned to SRAM A, SRAM B and SRAM C areas are not contiguous and
when the user dynamically changes the Internal SRAM configuration, the new 16 Kbyte block
organization may affect the previous configuration from a software point of view.
Table 8-5 illustrates different configurations and the related 16 Kbyte blocks (RB0 to RB9)
assignments.
Note:
1. Configuration after reset.
8.1.1.2
Internal ROM
The AT91SAM9261 integrates a 32 Kbyte Internal ROM mapped at address 0x0040 0000. It is
also accessible at address 0x0 after reset and before remap if the BMS is tied high during reset.
8.1.1.3
USB Host Port
The AT91SAM9261 integrates a USB Host Port Open Host Controller Interface (OHCI). The reg-
isters of this interface are directly accessible on the AHB Bus and are mapped like a standard
internal memory at address 0x0050 0000.
8.1.1.4
LCD Controller
The AT91SAM9261 integrates an LCD Controller. The interface is directly accessible on the
AHB Bus and is mapped like a standard internal memory at address 0x0060 0000.
Table 8-5.
16 Kbyte Block Allocation
Decoded
Area
Address
Configuration Examples and Related 16 Kbyte Block Assignments
ITCM = 0 Kbyte
DTCM = 0 Kbyte
AHB = 160 Kbytes (1)
ITCM = 64 Kbytes
DTCM = 64 Kbytes
AHB = 32 Kbytes
ITCM = 32 Kbytes
DTCM = 64 Kbytes
AHB = 64 Kbytes
ITCM = 32 Kbytes
DTCM = 16 Kbytes
AHB = 112 Kbytes
Internal
SRAM A
(ITCM)
0x0010 0000
RB3
0x0010 4000
RB2
0x0010 8000
RB1
0x0010 C000
RB0
Internal
SRAM B
(DTCM)
0x0020 0000
RB7
0x0020 4000
RB6
0x0020 8000
RB5
0x0020 C000
RB4
Internal
SRAM C
(AHB)
0x0030 0000
RB9
0x0030 4000
RB8
0x0030 8000
RB7
RB1
RB6
0x0030 C000
RB6
RB0
RB5
0x0031 0000
RB5
RB4
0x0031 4000
RB4
RB1
0x0031 8000
RB3
RB0
0x0031 C000
RB2
0x0032 0000
RB1
0x0032 4000
RB0
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