5/ Pin Definitions; Processor Support; System Memory Support; Spi Nor Flash - Kontron SMARC-sAL28 User Manual

5/ Pin Definitions

5.1. Processor Support

The Dual Cortex A72-Core LS1028A processor is the base for the SMARC 2.0 Computer-on-Module.

Table 7: Processor Support

Name Speed
LS1028A 1.3 GHz

5.2. System Memory Support

The memory system has DDR3L memory down with ECC support. Memory size up to 8 GB is possible, options for
less size also.
The sAL28 design supports two DDR3L banks with 5 DDR3L devices per bank. Bank 1 is assembled on the top side of
the PCB and accessible with chip selects CS0#. The second bank is connected with address mirroring, assembled on
the bottom side of the PCB and accessible with chip selects CS1#. Default DDR3L Memory sizes are 2 GByte and
4 GByte.

Table 8: DDR3L memory options

DDR3L memory DDR3L memory configuration
size
512 MB 5x 1 GBit density 128Mx8 DDR3L parts
1 GByte 5x 2 GBit density 256Mx8 DDR3L parts
2 GByte 5x 4 GBit density 512Mx8 DDR3L parts
4 GByte 10x 4 GBit density 512Mx8 DDR3L parts
8 GByte 10x 8 GBit density 1024Mx8 DDR3L parts

5.3. SPI NOR Flash

One SPI NOR flash with package WSON8 6x5mm is connected at XSPI1_A interface of LS1028A. Up to 128 GBits (16
Mbytes) are available in this package. Following parts are optional possible:

Table 9: SPI NOR Flash

SPI NOR Flash SPI NOR flash configuration
size
2 Mbytes 16 MBit serial flash memory with dual SPI
4 Mbytes 32 MBit serial flash memory with dual SPI
8 Mbytes 64 MBit serial flash memory with dual SPI
16 Mbytes 128 MBit serial flash memory with dual SPI
Default SPI NOR flash part is 4 Mbytes.
www.kontron.com
RAM.
48 KB L1-I, 32 KB L1-D
SMARC-sAL28 User Guide. Rev. 1.0
Cache TDP/Tj
1 MB L2 Cache 5 W/-40°C to 105ºC
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