Sharp DV-MX1U User's Guide Page 40

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28 Hardware Configuration
MX1 Reference Guide E-EQ-MX1RG-D
AT Compatible Core Logic
The LXE MX1 utilizes AT-compatible core logic. The MX1 supports the following I/O
components of the core logic:
One PCMCIA slot (supporting Type I, II or III PCMCIA cards).
One InfraRed port.
One Endcap port (supporting Barcode Scanning or RS-232 communication). All endcaps
provide beeper support.
System Memory
Main system memory is 8MB Internal Flash Array. The CPU also contains a 1MB BIOS Flash.
Upper Memory Block
The upper memory area, or Upper Memory Block (UMB) consists of memory between 640KB
and 1 MB. It occupies most of the address range A0000H-FFFFFH and includes the areas used to
shadow various system software components.
Internal Flash Array
The Internal Flash Array (IFA) is used to store all of the system files on the 8MB C drive that are
used during system startup.
Video Subsystem
The display has a 160 pixel (horizontal) by 160 pixel (vertical) format which provides 10 rows of
20 characters in VGA 8 x 16 text mode and 20 rows of 20 characters in 8 x 8 text mode.
Character size is 2.28mm (width) by 4.92mm (height) in VGA 8x16 text mode and 2.28mm
(width) by 2.28mm (height) in 8x8 text mode. The display contrast is adjustable with the contrast
control keys or key sequences. Backlighting is available and can be configured through the BIOS
Setup (not to be confused with the TE Configuration Utility).
The display controller supports VGA text and graphics modes.
The display includes icons arranged across the top to indicate “Low Main Battery”, “Backup
Battery Charging”, “CAPS Lock”, “Alpha Mode”, and whether the “2nd”, “Control”, “Alt”, or
“Shift” modifier keys have just been pressed.
Power Supply
The LXE MX1 typically uses two batteries for operation.
A replaceable 1500 mAh (or greater) Nickel Metal Hydride (NiMH) battery pack. The
battery pack is rechargeable while in the MX1 with the MX1 in a charging docking
station or with the optional Clip-On Portable Charger attached. The main battery pack
can be removed and placed in an LXE battery charger.
An internal 50 mAh Nickel Cadmium (NiCd) backup battery. The backup battery is
recharged directly by the NiMH battery when it is installed and the unit turned on. Full
charging of the internal battery may take several hours. The recharging of the backup
battery is automatically controlled by the MX1. The backup battery must be replaced by
qualified service personnel.
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