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User’s Manual for Advantech SOM-A2552 series module V1.00
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l 800x600 TFT: user could verify the performance by Advantech
LCD kit LCD-A104-TTS1-0.
l 1024x768 TFT: user could verify the performance by Advantech
LCD kit LCD-A150-TTX2-0.
Except 320x240 TFT mode, user could verify the LCD-out function by
Advantech LCD kit. Advantech LCD kit LCD-A057-STQ1-0 is 320x240 STN
type LCD, not TFT type, so user couldn’t verify the 320x240 TFT function by
sample images.
The sample images of SOM-A2558 series could support 4 kinds of display
modes:
l 320x240 STN: User can use Advantech LCD kit
LCD-A057-STQ1-0 to evaluate the LCD-out performance of
SOM-A2558 platform.
l 640x480 TFT: User can use Advantech LCD kit
LCD-A064-TTV1-0 to evaluate the LCD-out performance of
SOM-A2558 platform.
2.2.11 Zoom Video (ZV) port
SOM-A255F & SOM-A2552 series ZV port comes from SM501.
SOM-A2558 series don’t support the function. ZV Port can interface with video
decoders, such as NTSC/PAL decoders, MPEG-2 decoders, and JPEG Codec.
The ZV Port supports resolutions up to 1280x1024. It directly accepts digitized
RGB or YUV signals, and does not accept analog signals.
In 16-bit mode, the ZV [15:8] signals are the most-significant eight video
pixel inputs. In 8-bit mode, these signals are not used. In 16-bit mode, the ZV
[7:0] signals are the least-significant eight video pixel inputs. In 8-bit mode,
these signals are the only eight video pixel inputs.
About how to wire the ZV port with NTSC/PAL decoders, please check
“Advantech SOM-A255x series CSB design guide “.
2.2.12 System Reset Interface
SOM-A255x series all supply 3 kinds of System reset interface as
following:
Ø nRESET : hardware reset input pin. The pin is pulled high in
SOM-A255F. The pin is triggered by signal falling edge.
Ø nSW_RESET : software rest input pin. The pin is pulled high in
SOM-A255F. The pin is triggered by signal falling edge.
Ø nSA_PWR_ON : Suspend/wake-up pin. The pin is pulled high in
SOM-A255F. The pin is triggered by signal falling edge.
2.2.13 Buzzer Control Interface
SOM-A255x series all support this function. Buzzer-out control signal is
designed to control the buzzer on/off status.
If users want to design buzzer on CSB to be reminding or alarm system,
user could reference “Advantech SOM-A255x series CSB design guide “.
If users want to control the buzzer, users can check the memory map to
do it.