NEC POWERMATE PRO2180 - SERVICE 1996, Руководство по обслуживанию

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Technical Information 1-5
Table Section 1-1 System Board Feature Components
Chip Function
Pentium Chip 200/66-MHz or 180/60-MHz Intel Pentium Pro
processor
82440FX Chipset:
82371SB PCI/ISA IDE
Xccelerator (PIIX3)
82441FX PCI Bridge and
Memory Controller (PMC)
82442FX Data Bus Accelerator
(DBX)
Provides interface between PCI and ISA bus
Supports up to four PCI/IDE devices
Mode 3 and mode 4 support; Logical block
addressing (LBA) and Extended Cylinder
Head Sector (ECHS) translation modes and
ATAPI devices on both IDE interfaces
Provides CPU interface control and integrated
DRAM control, supports a fully synchronous
PCI bus interface plus CPU-to-DRAM and
PCI-to-DRAM data buffering
Connects to the CPU data bus, memory data
bus, and PMC private data bus; works in
parallel with PMC to provide a high
performance memory subsystem for Pentium
Pro-based systems.
PC87308 I/O Controller Multimode parallel port
Centronics compatible (standard mode)
Enhanced capabilities port (ECP)
Enhanced parallel port (EPP)
Two RS-232C serial ports that support an IrDA
and Consumer IR compliant Infrared interface
Integrated real-time clock with Century
calendar functionality and 242-byte battery-
backed CMOS RAM
Integrated 8042 keyboard controller
Flexible IRQ and DMA mapping to support
Windows 95
Supports industry-standard floppy controller
Processor and Secondary Cache
The PowerMate Pro2200 uses a 200-MHz Pentium processor with an internal clock speed
of 200 MHz. The PowerMate Pro2180 uses a 180-MHz Pentium processor with an internal
clock speed of 180 MHz. (The external speed of the 200-MHz processor is 66 MHz, while
the 180-MHz processor has an external speed of 60-MHz.)
Each processor has 16 KB of write-back primary cache and a math coprocessor. The 16 KB
primary cache provides 8 KB for instructions and 8 KB for data.