Advantech SOM-A2552 manual System Specifications, Cpld

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User’s Manual for Advantech SOM-A2552 series module V1.00

CPLD

SOM-A2552 series have one CPLD on board. The CPLD take charges of the following function:

•System memory assignments

•I/O control

•RTC control

Base on Advantech policy, Advantech won’t release the CPLD code to user. In fact, when user designs their own target carrier board, they don’t need to know the CPLD code. Advantech will release memory map of available memory block and available GPIOs. These are fully enough to users to develop their own carrier board.

1.2 System Specifications

The following table is SOM-A2552 series functional specifications.

SOM-A2552 standard product specification table

Model Name	SOM-A2552-440B0	Reconfiguration Option
Func.
CPU	PXA255-400MHz	200/300/400 MHz
Graphic Chip	SMI SM501 with 8MB embedded	SM501 with /without 8MB
	SDRAM	embedded SDRAM
System Memory(SDRAM)	64MB	16/32/64/128 MB
Booting Flash	1MB NOR Flash	-
On-board Flash (Image &	0MB	0/16/32/64MB
Storage )
OS Image Storage	WinCE.NET	Linux(By customer request)
AMI Bus(X1 Bus)	100-pin B2B connector with driving	Yes
	buffers
Feature Extension	100-pin B2B connector (Provide ZV	Yes
Bus(X2 Bus)	& SD/MMC I/F)
Watch Dog	PXA255 internal	-
RTC	External RTC w/backup power pin	Yes
System Backup battery	RTC/SDRAM	-
Serial Port	3x Full RS-232 (TTL), 1x 2-wires	-
	RS-232 (TTL),1x 3-wires
	RS-232/RS-485
PCMCIA/Compact flash	2 slots PCMCIA/CF or	-
I/F	1xPCMCIA, 1xCF
USB Host	1x USB 1.1 Host	-
USB Client	1x USB Client	-
SD/MMC	Ix Ch(Support	-
	Memory mode)
CRT-out	Up to 1280*1024	-
TV Interface	TV out
ZV port	Yes	-
LCD TTL Interface	SM501 24 bit LCD interface,	-
	resolution up to 1280*1024
Touch Screen Interface	4-wire resistive	Yes

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