Table of Contents
Advertisement
Features of the AlphaPC164UX Motherboard
Table 2–1 provides an overview of the AlphaPC 164UX motherboard's features.
Table 2–1 AlphaPC 164UX Features
Feature
Microprocessor
Core logic chip
Main memory
Caching:
L1 Icache
L1 Dcache
L2 Scache
L3 backup cache
I/O and miscellaneous support
Firmware
Figure 2–1 shows the AlphaPC 164UX motherboard and its components.
Description
Alpha 21164 microprocessor (64-bit RISC)
Digital Semiconductor 21174 core logic chip, comprising a single
control chip that provides an interface to system memory and the
PCI bus
32MB to 3GB memory array –- Three banks of 128-bit memory;
168-pin unbuffered SDRAM DIMMs with ECC
8KB, direct-mapped instruction cache on the CPU chip
8KB, direct-mapped data cache on the CPU chip
96KB, three-way, set-associative, write-back unified instruction
and data cache on the CPU chip
Onboard 2MB/4MB, direct-mapped, synchronous SSRAM backup
cache with 128-bit data path
32-bit and 64-bit, 33-MHz PCI
One 64-bit and five 32-bit PCI expansion slots
One dedicated ISA expansion slot
DEC 21052 PCI-to-PCI Bridge chip
Intel 82371SB PCI-to-ISA bridge chip
DEC 21143 10/100 Mb/s Ethernet LAN Controller
Symbios 53C875 Ultra wide SCSI Controller
SMC FDC37C666 combination controller chip provides control
for diskettes, two UARTs with modem control, parallel port
1MB flash ROM
Windows NT ARCSBIOS firmware
Features of the AlphaPC164UX Motherboard
2
2–1
Advertisement
Table of Contents
