Processor - NEC POWERMATE P60D Service Manual

1-4 Technical Information
Table Section 1-1 lists the major chips on the system board. See Section 2, Setup and Op-
eration, for a description of the system board's jumpers. See Appendix A, Connector Pin
Assignments, for a list of the system board connectors.
Chip
Pentium
28F001
Intel Mercury PCI/ISA Chip set
82434LX
82433LX
82378ZB
Cirrus Logic CLDG5434
Dallas DS12887
Intel 82091AA

Processor

The PowerMate P60 system uses a 64-bit, 60-MHz Pentium microprocessor. 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 special synchronous cache design uses 15-ns static random access memory (SRAM)
that allows data to be sent or received from cache at the fastest possible bursts rate
supported by the Pentium processor.
The Pentium processor is compatible with all 8-, 16-, and 32-bit software written for the
Intel386™, Intel486™, and Pentium processors.
The processor is installed in a 273-pin, zero-insertion-force (ZIF) processor socket. This
socket allows the installation of the next generation of Intel OverDrive processors based on
the Pentium core (PGA type package).
Table Section 1-1 System Board Chips
Description
60-MHz processor
128k x 8 Flash ROM
PCI cache and memory controller
Local bus extension
System I/O bridge
PCI graphics controller
Real-time clock
Super I/O controller