User manual

3-8 Hardware Functional Overview

 Hardware line drawing

 64x64x2 hardware cursor

High performance resulting from zero wait-state writes (write buffer) and mini-

mum wait-state reads (internal asynchronous FIFO design)

Supports panel resolutions up to 800x600

Supports non-interlaced CRT monitors with resolutions up to 1024x768 at 256

colors

True-color and Hi-color display capability with flat panels and CRT monitors up

to 800x600 resolution

Advanced power management features minimize power consumption during:

 Normal operation

 Standby (Sleep) modes

 Panel-Off Power-Saving Mode

Power Sequencing control outputs regulate application of Bias voltage, +5V to

the panel and +12V to the inverter for backlight operation

Fully compatible with IBM VGA

EIAJ-standard 208-pin plastic flat pack

External VGA Capability

The NEC Versa 2500 Series notebooks provide a 15-pin female D-type external VGA con-

nector that can be connected to an external video graphics adapter (VGA) type monitor.

Another feature of the notebook computer is the ability to auto-sense the display output to

both LCD and the external CRT monitor. The notebook provides external resolution of

1024x768 by 256 colors for the NEC Versa 2500 series with 1 MB video memory. The

NEC Versa 2500 Series can also provide simultaneous display at 800x600 at 256 colors

with the standard VGA DSTN LCD.

KEYBOARD SUBSYSTEM

The Keyboard Subsystem of the notebook is implemented on the I/O Board and Keyboard

Assembly using the Motorola M 38813M4 keyboard controller chip.

The NEC Versa 2500 Series keyboard is an 87/88-key, IBM enhanced-type keyboard with

standard characters and function keys plus 12 programmable function keys. The notebook

also provides an external PS/2 port for supporting an external PS/2 keyboard or standard

DIN-type AT-keyboard. See Section 1 for more information.

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