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User’s Manual for Advantech SOM-A2558 series module V1.00
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RECD SOM is a powerful and helpful architecture for internal or users use
to implement a RISC system. There are three types of interfaces. One is
SO-DIMM 200 gold finger interface and two 100-pin B2B connectors.
Pin Definition

¦JP1 PXA255 JTAG pin header

Pin Num. Description Note
1 TCK
2 TDI
3 TDO
4 TMS
5 nJTAGTRST
6 GND
7 nRESET

Pin type

P : DC power pin or system ground pin
I : digital input pin
O : digital output pin
IO : bidirectional pin
AI : analog input pin
AO : analog output pin
- : no function
¦SODIMM-200 Pin Out Table (X2)
Pin
No.
Signals Typ
e Description Default state
1 SA_SKT_D0 AIO
PCMCIA/CF data 0 No pulling
2 SA_SKT_D8 IO
PCMCIA/CF data 8 No pulling
3 SA_SKT_D1 IO
PCMCIA/CF data 1 No pulling
4 SA_SKT_D9 IO
PCMCIA/CF data 9 No pulling
5 SA_SKT_D2 IO
PCMCIA/CF data 2 No pulling
6 SA_SKT_D10
IO
PCMCIA/CF data 10 No pulling
7 SA_SKT_D3 IO
PCMCIA/CF data 3 No pulling
8 SA_SKT_D11
IO
PCMCIA/CF data 11 No pulling
9 SA_SKT_D4 IO
PCMCIA/CF data 4 No pulling
10 SA_SKT_D12
IO
PCMCIA/CF data 12 No pulling
11 SA_SKT_D5 IO
PCMCIA/CF data 5 No pulling
12 SA_SKT_D13
IO
PCMCIA/CF data 13 No pulling
13 SA_SKT_D6 IO
PCMCIA/CF data 6 No pulling
14 SA_SKT_D14
IO
PCMCIA/CF data 14 No pulling
15 SA_SKT_D7 IO
PCMCIA/CF data 7 No pulling
16 SA_SKT_D15
IO
PCMCIA/CF data 15 No pulling
17 SA_SKT_A14
IO
PCMCIA/CF address 14 No pulling