Controllers - Epson ActionTower 7500 User Manual

Cache
Math
coprocessor
Clock/
calendar

Controllers

PCI Chipset
Video
Diskette
8 or 16KB of internal cache in the
processor; supports 128,256, or 512KB of
external cache with 32K x 8,64K x 8, or
128K x 8,15ns or 20ns SRAM DIP chips
and a 32K x 8 tag chip
Math coprocessor built into the processor
on all DX and Intel Pentium OverDrive
processors
Real-time clock, calendar, and CMOS
RAM socketed on main system board with
integrated Lithium battery
Provides PCI caching, memory and
control for the PCI bus, and the
two-channel PCI IDE interface; integrated
PCI bridge translates CPU bus cycles to
PCI bus cycles and CPU-to-PC1 memory
write cycles to PCI burst cycles
®
Cirrus Logic GD5430 high-performance
GUI accelerator controller supports
resolutions up to 1024 x 768 in 256 colors
with 1MB of VRAM; 1280 x 1024 with 2MB
of VRAM
Controller on main system board supports
up to two diskette drives or one diskette/
combo diskette and one tape drive
Specifications
A - 3