AT91SAM9260B-CU-999 Atmel, AT91SAM9260B-CU-999 Datasheet - Page 123

• Manufacturer Part Number: AT91SAM9260B-CU-999
• Description: IC MCU ARM9 217LFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM9260B-CU-999

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 180MHz
• Connectivity: EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: POR, WDT
• Number Of I /o: 96
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: ROM
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 4x10b
• 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: 8 KB
• Interface Type: 2-Wire, EBI, I2S, SPI, USART
• Maximum Clock Frequency: 180 MHz
• Number Of Programmable I/os: 96
• Number Of Timers: 6
• 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, AT91SAM9260-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 4 Channel
• For Use With: AT91SAM9260-EK - KIT EVAL FOR AT91SAM9260AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

18. AT91SAM9260 Bus Matrix
18.1
18.2
18.2.1
6221I–ATARM–17-Jul-09
Description
Embedded Characteristics
Matrix Masters
The Bus Matrix implements a multi-layer AHB based on the AHB-Lite protocol that enables par-
allel access paths between multiple AHB masters and slaves in a system, thus increasing the
overall bandwidth. The Bus Matrix interconnects 6 AHB Masters to 5 AHB Slaves. The normal
latency to connect a master to a slave is one cycle except for the default master of the accessed
slave which is connected directly (zero cycle latency).
The Bus Matrix user interface is compliant with the ARM Advanced High-performance Bus and
provides a Chip Configuration User Interface with registers that allow the Bus Matrix to support
application specific features.
The Bus Matrix of the AT91SAM9260 manages six Masters, which means that each master can
perform an access concurrently with others, according the slave it accesses is available.
Each Master has its own decoder that can be defined specifically for each master. In order to
simplify the addressing, all the masters have the same decodings.
Table 18-1.
Master 0
Master 1
Master 2
• 6-layer Matrix, handling requests from 6 masters
• Programmable Arbitration strategy
• Burst Management
• One Address Decoder provided per Master
• Boot Mode Select
• Remap Command
– Fixed-priority Arbitration
– Round-Robin Arbitration, either with no default master, last accessed default master
– Breaking with Slot Cycle Limit Support
– Undefined Burst Length Support
– Three different slaves may be assigned to each decoded memory area: one for
– Non-volatile Boot Memory can be internal or external
– Selection is made by BMS pin sampled at reset
– Allows Remapping of an Internal SRAM in Place of the Boot Non-Volatile Memory
– Allows Handling of Dynamic Exception Vectors
or fixed default master
internal boot, one for external boot, one after remap
List of Bus Matrix Masters
ARM926
ARM926 Data
PDC
™
Instruction
AT91SAM9260
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