Technical Information 1-15
NEC VERSA CHIP SET
Refer to Table 1-3 for a quick summary of chip types used in the system. See the Abbre-
viations section at the beginning of this manual for a translation of chip technologies.
Table 1-3 NEC Versa Series Chip Types and Technologies
Chip
Manufacturer
Description
Technology
Intel Pentium
P55CTT80503
Intel
166 MHz CPU
320-pin TCP
82C700(FireStar)
Opti
FireStar System Controller
432--pin BGA
82C861(FireLink)
Opti
USB Controller
100-pin TQFP
N28F002BC-90
Intel
256k x 8 Flash ROM
32-pin PLCC
NM2160
NeoMagic
VGA Controller
208-pin FQFP
PC97338
National
Semiconductor
Diskette Controller, IDE,
Parallel Interface
100-pin TQFP
H8/3434
Hitachi
Keyboard Controller
64-pin TQFP
PCI1131
Texas Instruments
PC Card Controller
208-pin QFP
ES1869
ESS Technologies
Sound Controller
100-pin PQFP
Intel Pentium P55CLM Microprocessor
The 166 MHz Intel Pentium microprocessors with MMX technology used in the NEC
Versa Series computer is built on Intel’s advanced 2.5V BiCMOS silicon technology. The
CPU has on-chip dual-processing, a local multiprocessor interrupt controller, and power
management features. NEC adopted the chip specifically for its pipelined Floating Point
Unit (FPU), and local interrupt management.
FireStar System Controllers
NEC implements Opti’s 64-bit single chip controller (82C700) for the NEC Versa 5000
Series notebook’s subsystems including the DRAM controller, Second Level Cache Con-
troller and PCI Bus interface. The FireStar PCI set features include:
3.3V EDO DIMM (70-ns) support
direct mapped organization write-back policy
fully synchronous 33 MHz PCI bus interface.
USB Controller
The Opti 82C861 FireStar chip is a PCI USB controller. The controller based on Open HCI
standard and supports hot plug in and unplug.
