Features - Epson PC AX Technical Manual

REV .A PROnUCT DESCRIPTIOR
1 .1 FEATURES
The EQU1TY IlI+ / EPSON
pe
P\f.. computer system inc1udes two major elements; a
main system unit and a keyboard.
FIGURE 1-1-1. MAJOR. COMPORKRTS
The EQU1TY II1+ / EPSON PC P\f.. hardware configuration has
Cl
high degree of
compatibility with the IBM AT and the new AT.
System Performance
EQU1TY 111+ / EP SON
pe
P\f.. has three CPU execution speeds, these are the IBN AT
speed (6 MHz), the new AT speed (8 MHz) and a fast er speed (10 l'fiIz). Speed is
selected by setting a three-position switch easily accessed from the front.
The user can see the selected execution speed by the color of a
1ED.
Wait Cycles
EQUITY IlI+ / EPSON PC P\f.. uses several types of internal devices, such as RAM,
ROM, 16-bit extension memory, 16-bit 1/0 device, 8-bit extensi on memory anel
r,-bit 1/0 device at every CPU speed. In the case of 6 MHz or 8 MHz, the
number of wait cycles is the same as the AT or the new AT.
1-1