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User’s Manual for Advantech SOM-A2552 series module V1.00

 

 

 

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

No pulling

 

 

 

signals. VCONR_CS is used be

 

 

 

 

chip

select pin.

Advantech

 

 

 

 

suggests to connect the pin to

 

 

 

 

DS1804 7th pin.

 

 

166

CRT_VSYNC

AO

Vertical sync for the CRT.

No pulling

167

VCONR_UnD

O

One of STN LCD contrast control

No pulling

 

 

 

signals. VCONR_UnD is used be

 

 

 

 

Up/Down Control.

Advantech

 

 

 

 

suggests to connect the pin to

 

 

 

 

DS1804 2nd pin.

 

 

168

CRT_SDA

-

Reserved for future use. User can

Pull high with

 

 

 

connect the pin to CRT I2C data

4.71Kohm

 

 

 

pin or just float it.

 

 

169

CRT_CLK

-

Reserved for future use. User can

Pull high with

 

 

 

connect the pin to CRT I2C clock

4.71Kohm

 

 

 

pin or just float it.

 

 

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

No pulling

 

 

 

Frame Pulse. For TFT displays,

 

 

 

 

this output connects to the Vertical

 

24

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Advantech SOM-A2552 manual Vconrcs, Crtvsync, Crtsda, Flmvsync