ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 27

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.4
7.5
Table 7-3.
6430DS–ATARM–28-Mar-11
Slaves
0
1
2
3
4
5
6
7
8
9
Matrix Slaves
Master to Slave Access
USB Device High Speed Dual Port RAM (DPR)
SAM3U Master to Slave Access
High Speed Peripheral Bridge
Low Speed Peripheral Bridge
NAND Flash Controller RAM
External Bus Interface
Internal SRAM0
Internal SRAM1
Internal Flash 0
Internal Flash 1
Internal ROM
The Bus Matrix of the SAM3U manages 10 slaves. Each slave has its own arbiter, allowing a dif-
ferent arbitration per slave.
Table 7-2.
All the Masters can normally access all the Slaves. However, some paths do not make sense,
for example allowing access from the USB Device High speed DMA to the Internal Peripherals.
Thus, these paths are forbidden or simply not wired, and shown as “–” in
Slave 0
Slave 1
Slave 2
Slave 3
Slave 4
Slave 5
Slave 6
Slave 7
Slave 8
Slave 9
List of Bus Matrix Slaves
Masters
Internal SRAM0
Internal SRAM1
Internal ROM
Internal Flash 0
Internal Flash 1
USB Device High Speed Dual Port RAM (DPR)
NAND Flash Controller RAM
External Bus Interface
Low Speed Peripheral Bridge
High Speed Peripheral Bridge
Cortex-M3
I/D Bus
X
X
X
0
–
–
–
–
–
–
–
Cortex-M3 S
Bus
X
X
X
X
X
X
X
1
–
–
–
PDC
X
X
X
X
X
X
X
2
–
–
–
SAM3U Series
USB Device
High Speed
DMA
Table 7-3
X
X
X
–
X
X
3
–
–
–
–
below.
Controller
DMA
4
X
X
X
–
–
–
X
X
–
–
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