Processor Subsystem - NEC POWERMATE VP Manual

Processor Subsystem

1-34 Using Your Computer
n
8 MB or 16 MB of system memory, upgradeable to
128 MB
n
System Setup program built into the BIOS
n
Flash ROM for fast economical BIOS upgrades
n
System I/O controller integrating serial ports, parallel
port, hard disk, and diskette drive controllers
n
PCI local bus for high-speed bus performance and data
transfers
n
Extended super-VGA controller with 1 MB of video
dynamic random-access memory (DRAM), upgrade-
able to 2 MB
n
Plug and Play support for easy board installation
n
Power saving features for conserving power and re-
ducing operating cost.
The system uses a 64-bit, Intel Pentium P54C micro-
processor. The processor has 16 KB of write-back internal
cache, 8 KB for instructions and 8 KB for data. Integrated
into the processor is a math coprocessor.
To use the Pentium processor's power, the system features
an optimized 64-bit memory interface and complementary
256-KB burst-mode secondary cache.
The Pentium processor cache design uses 15-ns static ran-
dom access memory (SRAM) that allows data to be sent or
received from cache with one wait burst.
The Pentium processor is compatible with all 8-, 16-, and
32-bit software written for the Intel386 , Intel486 , and
Pentium microprocessors.