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User’s Manual for Advantech SOM-A2558 series module V1.00
26
Up/Down Control. Advantech
suggests to connect the pin to
DS1804 2
nd
pin.
168
CRT_SDA -
Reserved for future use. User can
connect the pin to
CRT I2C data
pin or just float it.
Pull high with
4.71Kohm
169
CRT_CLK -
Reserved for future use. User can
connect the pin to CRT I2C clock
pin or just float it.
Pull high with
4.71Kohm
170
B0 O
B0 in 24-bit TFT mode. No pulling
171
B1 O
B in 24-bit TFT mode. No pulling
172
B2 O
B in 24-bit TFT mode. No pulling
173
B3 O
B in 24-bit TFT mode. No pulling
174
B4 O
B in 24-bit TFT mode. No pulling
175
B5 O
B in 24-bit TFT mode. No pulling
176
B6 O
B in 24-bit TFT mode. No pulling
177
B7 O
B in 24-bit TFT mode. No pulling
178
G0 O
G in 24-bit TFT mode. No pulling
179
G1 O
G in 24-bit TFT mode. No pulling
180
G2 O
G in 24-bit TFT mode. No pulling
181
G3 O
G in 24-bit TFT mode. No pulling
182
G4 O
G in 24-bit TFT mode. No pulling
183
G5 O
G in 24-bit TFT mode. No pulling
184
G6 O
G in 24-bit TFT mode. No pulling
185
G7 O
G in 24-bit TFT mode. No pulling
186
R0 O
R in 24-bit TFT mode. No pulling
187
R1 O
R in 24-bit TFT mode. No pulling
188
R2 O
R in 24-bit TFT mode. No pulling
189
R3 O
R in 24-bit TFT mode. No pulling
190
R4 O
R in 24-bit TFT mode. No pulling
191
R5 O
R in 24-bit TFT mode. No pulling
192
R6 O
R in 24-bit TFT mode. No pulling
193
R7 O
R in 24-bit TFT mode. No pulling
194
N.C. - N.C. just float this pin. -
195
N.C. - N.C. just float this pin. -
196
FLM_VSYNC
O
Flat Panel TFT Vertical Sync/STN
Frame Pulse. For TFT displays,
this output connects to the Vertical
Sync input of the LCD panel. For
STN displays, this output connects
to the Frame Clock input of the
LCD panel.
This output indicates the start of a
new frame of pixels. The panel
needs to reset its line pointers to
the top of the screen.
No pulling
197
LP_HSYNC O
Flat Panel TFT Vertical Sync/STN
Frame Pulse. For TFT displays,
this output connects to the Vertical
No pulling