Advantech SOM-A2558 Personal Computer User Manual


 
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Users Manual for Advantech SOM-A2558 series module V1.00
35
enable signal
B24
PCIAD16 IO
PCI address/data 16 No pulling
A24
PCIAD17 IO
PCI address/data 17 No pulling
B25
PCIAD18 IO
PCI address/data 18 No pulling
A25
PCIAD19 IO
PCI address/data 19 No pulling
B26
PCIAD20 IO
PCI address/data 20 No pulling
A26
PCIAD21 IO
PCI address/data 21 No pulling
B27
PCIAD22 IO
PCI address/data 22 No pulling
A27
PCIAD23 IO
PCI address/data 23 No pulling
B28
PCIAD24 IO
PCI address/data 24 No pulling
A28
PCIAD25 IO
PCI address/data 25 No pulling
B29
PCIAD26 IO
PCI address/data 26 No pulling
A29
PCIAD27 IO
PCI address/data 27 No pulling
B30
PCIAD28 IO
PCI address/data 28 No pulling
A30
PCIAD29 IO
PCI address/data 29 No pulling
B31
N.C. - N.C. float this pin. -
A31
N.C. - N.C. float this pin. -
B32
N.C. - N.C. float this pin. -
A32
N.C. - N.C. float this pin. -
B33
N.C. - N.C. float this pin. -
A33
N.C. - N.C. float this pin. -
B34
N.C. - N.C. float this pin. -
A34
N.C. - N.C. float this pin. -
B35
nMMCD I
SD/MMC interface card detect pin.
If user doesnt need MMC/SD
function, user could use this pin as
GPIO. The pin connects to SoC
PXA255 GPIO12.
Pull high with
100Kohm
A35
MMCLK O
MMC clock. Clock signal for the
MMC Controller. If user doesnt
need MMC/SD function, user could
use this pin as GPIO. The pin
connects to SoC PXA255 GPIO6.
No pulling
B36
MMDAT3/
MMCCS0
O
Chip select pin for MMC controller.
If user doesnt need MMC/SD
function, user could use this pin as
GPIO. The pin connects to SoC
PXA255 GPIO8.
No pulling (For
SOM-255F is
MMCCS0)
A36
MMCMD IO
Multimedia Card Command.
Pull high with
10Kohm
B37
MMDAT0 IO
Multimedia Card Data pin.
Pull high with
10Kohm (For
SOM-255F is
MMCDAT)
A37
N.C. -
No connection. Just float this pin. N.C. (For
SOM-255F is
Reserved)
B38
N.C. -
No connection. Just float this pin. N.C. (For
SOM-255F is