Advantech SOM-A2552 - page 24

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User’s Manual for Advantech SOM-A2552 series module V1.00
24
pin
. Advantech suggests to
connect the pin to DS1804 1st pin.
164 CRT_HSYNC AO Horizontal sync for the CRT. No pulling
165 VCONR_CS O
One of STN LCD contrast control
signals. VCONR_CS
is used be
chip select pin
. Advantech
suggests to connect
the pin to
DS1804 7th pin.
No pulling
166 CRT_VSYNC AO Vertical sync for the CRT. No pulling
167 VCONR_UnD O
One of STN LCD contrast control
signals.
VCONR_UnD is used be
Up/Down Control. Advantech
suggests to connect the pin to
DS1804 2nd pin.
No pulling
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
No pulling