CP331
2.4 Board Interfaces
2.4.1
Embedded-Memory Interface
The memory interface can be devided into two parts, the video memory interface and
the VGA BIOS interface. The CP331 is provided with up to 4MB of embedded video
memory with the C&T 69030 graphic controller chip or, respectively, 2MB with the
C&T 69000 controller chip. The installed SGRAM provides the maximum resolution at
the highest controller refresh rate. A 64kB ob-board Flash memory is designed to con-
tain the VGA BIOS.
2.4.2
CRT Interface
Table 2-1: VGA Connector Pinouts
Pin
1
Red
2
Green
3
Blue
4
N/C
5
GND
N/C = Non connected.
ID 19947, Rev. 0200
Figure 2-2: Orientation of CRT Interface
The CRT interface is a standard VGA interface for connecting CRT
monitors. It is implemented by a 3-row 15-pin DSUB connector.
The pinouts of the VGA connector are shown in the following table.
Signal
Pin
6
7
8
9
10
© 2000 PEP Modular Computers GmbH
Functional Description
Signal
Analog GND
11
Analog GND
12
Analog GND
13
VCC
14
GND
15
Pin
Signal
N/C
DDAT
Hsync
Vsync
DCLK
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