NEC LE2200, User Manual

Page: 26 / 150

2-8
Features
V i d e o C o n t r o l l e r
The system has a high-performance SVGA subsystem
that supports the following:
■
BIOS compatibility with VGA, EGA, CGA, Hercules
Graphics, and MDA.
■
1 MB of Video Random Access Memory (VRAM)
expandable to 2 MB (Figure 2-3, E).
■
16-bit bus for high-speed display memory access.
■
Hardware accelerated bit block transfers (BITBLT).
■
Display power management system.
■
Supports 72Hz refresh, non-interlaced at: 640x480,
800x600, 1024x768, or 1280x1024 resolutions.
■
Displays of up to 16M colors at 640x480 and 800x600
resolutions, 64K colors at 1024x768 resolutions and
256 colors at 1280x1024 resolutions.
Note: SVGA drivers may be required to use the high-
performance video modes.
P e r i p h e r a l C o n t r o l l e r
The advanced integrated peripheral controller supports
2 serial ports and one parallel port through the I/O
riser board (Figure 2-3, F). The advanced integrated
peripheral controller also supports the connection of a
diskette drive (Figure 2-3, M).
E x t e r n a l D e v i c e C o n n e c t o r s
The I/O panel provides connectors for a PS/2 compatible
mouse and a keyboard, connectors for VGA monitor, 2
serial port connectors, and a parallel port connector. It
also provides a narrow SCSI external connector.