Board Interfaces; Embedded-Memory Interface; Crt Interface - PEP Modular Computers CP331 Manual

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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