Atmel SAMA5D3 EK Series User Manual

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SAMA5D3x-EK User Guide [USER GUIDE]
11180B–ATARM–29-Oct-13
4.3 Functional Blocks
4.3.1 Processor
The CM board is equipped with one Atmel SAMA5D3 ARM-based embedded MPU from the list below:
 SAMA5D31
 SAMA5D33
 SAMA5D34
 SAMA5D35
 SAMA5D36
The SAMA5D3x devices are packaged in a BGA324-ball BGA package and share an identical footprint.
.As different interfaces can be defined using the same pins, the functions available on the evaluation board depend on
the actual configuration of the CPU.
The Atmel SAMA5D3 series is a high-performance, power-efficient embedded MPU based on the ARM Cortex-A5
processor, achieving 536 MHz with power consumption levels below 0.5 mW in low-power mode. The device features a
floating point unit for high-precision computing and accelerated data processing, and a high data bandwidth architecture.
It integrates advanced user interface and connectivity peripherals and security features.
The SAMA5D3 series features an internal multi-layer bus architecture associated with 39 DMA channels to sustain the
high bandwidth required by the processor and the high-speed peripherals. The device offers support for
DDR2/LPDDR/LPDDR2 and MLC NAND Flash memory with 24-bit ECC.
The comprehensive peripheral set includes an LCD controller with overlays for hardware-accelerated image composition,
a touchscreen interface and a CMOS sensor interface. Connectivity peripherals include Gigabit EMAC with IEEE1588,
10/100 EMAC, multiple CAN, UART, SPI and I2C. With its secure boot mechanism, hardware accelerated engines for
encryption (AES, TDES) and hash function (SHA), the SAMA5D3 ensures anti-cloning, code protection and secure
external data transfers.
Refer to Section 4. “CPU Module (CM) Board” on page 7 for details.
The processor runs at frequencies up to 536 MHz for the core and up to 166 MHz for the system bus.
4.3.2 Clock Circuitry
The CM board includes three clock sources:
 Two clocks are alternatives for the SAMA5D3 series processor main clock
 One crystal oscillator is used for the Ethernet RGMII chip
4.3.3 Reset Circuitry
The reset sources for the CM board are:
 Power-on reset
 Pushbutton reset (Pushbutton is equipped on main board)
 JTAG reset from an in-circuit emulator (MB features an on-board JTAG interface)
Table 4-4. Main Components Associated with the Clock Systems
Quantity Description
Component
Assignment
1 Crystal for internal clock, 12 MHz Y1
1 Crystal for RTC clock, 32.768 kHz Y2
1 Oscillator for ethernet clock RGMII, 25 MHz Y3

Atmel SAMA5D3 EK Series Specifications

General

Brand	Atmel
Model	SAMA5D3 EK Series
Category	Motherboard
Language	English