AT91SAM9260-EK Atmel, AT91SAM9260-EK Datasheet - Page 17

• Manufacturer Part Number: AT91SAM9260-EK
• Description: KIT EVAL FOR AT91SAM9260
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM9260-EK

• Contents: Evaluation Board, Parallel Cable and CD-ROM
• Processor To Be Evaluated: AT91SAM9260
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet, USB
• Core: ARM 9
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: ARM926EJ-S
• Silicon Core Number: AT91SAM9260
• Silicon Family Name: ARM
• Kit Contents: Board, Cables, CD, Power Supply
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM9260
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.2.1
7.2.2
7.2.3
6221JS–ATARM–17-Jul-09
Matrix Masters
Matrix Slaves
Master to Slave Access
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 7-1.
Each Slave has its own arbiter, thus allowing a different arbitration per Slave to be programmed.
Table 7-2.
All the Masters can normally access all the Slaves. However, some paths do not make sense,
such as allowing access from the Ethernet MAC to the Internal Peripherals. Thus, these paths
are forbidden or simply not wired, and shown “-” in the following table.
Table 7-3.
Master 0
Master 1
Master 2
Master 3
Master 4
Master 5
Slave 0
Slave 1
Slave 2
Slave 3
Slave 4
• Boot Mode Select
• Remap Command
0
– 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
Internal SRAM
Master
Slave
4 KBytes
List of Bus Matrix Masters
List of Bus Matrix Slaves
AT91SAM9260 Masters to Slaves Access
Internal SRAM0 4 KBytes
Internal SRAM1 4 KBytes
Internal ROM
USB Host User Interface
External Bus Interface
Internal Peripherals
ARM926
ARM926 Data
PDC
USB Host DMA
ISI Controller
Ethernet MAC
Instruction &
ARM926
0 & 1
Data
X
™
Instruction
Peripheral
Controller
DMA
2
X
USB Host
Controller
X
3
AT91SAM9260
Controller
ISI
4
X
Ethernet
MAC
X
5
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