Epson ActionNote Appendix B, CPU, Clock, System, memory, Numeric, ROM BIOS, calendar, Main Unit, Video RAM, Shadow RAM, coprocessor, coprocessor, Suspend mode

Appendix B

Specifications

This appendix lists the computer’s specifications. It also includes the specifications for international power cables.

Main Unit
CPU	486SLC microprocessor; 33 MHz (and
	simulated 8 MHz) clock speed; 1 MHz in
	Suspend mode
System	2MB of DRAM soldered on main system
memory	board, expandable to 4MB or 8MB using a
	memory module; the first 640KB is
	conventional memory and 128KB is used
	for shadow RAM; the rest can be used as
	extended or expanded memory
ROM BIOS	128KB on a single one-time programmable
	ROM (includes system BIOS, VGA BIOS,
	and the SETUP program)
Video RAM	256KB, 80ns video memory on main
	system board; 256KB x 4 frame buffer
Shadow RAM	Shadowing of system and VGA BIOS,
	128KB (at E0000 to FFFFF)
Clock/	Real-time clock, calendar, and CMOS
calendar	RAM for configuration; backed up by
	built-in Dallas clock chip (DS 1287)
Numeric	Socket for optional Cyrix Cx387SLC or
coprocessor	Intel 387SX/SL multifrequency numeric
	coprocessor

Specifications B-1