AT91SAM9261SB-CU Atmel, AT91SAM9261SB-CU Datasheet - Page 18
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AT91SAM9261SB-CU
Manufacturer Part Number
AT91SAM9261SB-CU
Description
IC ARM9 MPU 217-LFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM9261SB-CU.pdf
(39 pages)
Specifications of AT91SAM9261SB-CU
Core Processor
ARM9
Core Size
16/32-Bit
Speed
190MHz
Connectivity
EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
DMA, LCD, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
32KB (32K x 8)
Program Memory Type
ROM
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.08 V ~ 1.32 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
217-LFBGA
Processor Series
AT91SAMx
Core
ARM926EJ-S
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
2-Wire, I2S, SPI, USB
Maximum Clock Frequency
190 MHz
Number Of Programmable I/os
96
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM9261-EK
Minimum Operating Temperature
- 40 C
For Use With
AT91SAM9261-EK - KIT EVAL FOR AT91SAM926EJ-SAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM9261SB-CU-EOL
Manufacturer:
Atmel
Quantity:
56
8.1.2.1
8.1.2.2
8.2
18
External Memories
AT91SAM9261S
BMS = 1, Boot on Embedded ROM
BMS = 0, Boot on External Memory
The system boots using the Boot Program.
The customer-programmed software must perform a complete configuration.
To speed up the boot sequence when booting at 32 kHz EBI CS0 (BMS=0), the user must take
the following steps:
The external memories are accessed through the External Bus Interface (Bus Matrix Slave 3).
Refer to the memory map in
• Enable the 32,768 Hz oscillator
• Auto baudrate detection
• Downloads and runs an application from external storage media into internal SRAM
• Automatic detection of valid application
• Bootloader on a non volatile memory
• SAM-BA Boot in case no valid program is detected in external NVM, supporting:
• Boot on slow clock (32,768 Hz)
• Boot with the default configuration for the Static Memory Controller, byte select mode, 16-bit
1. Program the PMC (main oscillator enable or bypass mode).
2. Program and start the PLL.
3. Reprogram the SMC setup, cycle, hold, mode timings registers for CS0 to adapt them
4. Switch the main clock to the new value.
data bus, Read/Write controlled by Chip Select, allows boot on 16-bit non-volatile memory.
– SPI Serial Flash or DataFlash connected to NPCS0 of the SPI0
– NAND Flash
– SDCARD (boot ROM does not support high capacity SDCards)
– Serial communication on a DBGU
– USB Device HS Port
to the new clock
Figure 8-1 on page
15.
6242ES–ATARM–11-Sep-09