Specifications

1–2 Introduction to the AlphaPC 164 Motherboard
Subject to Change – 17 January 1997
System Components and Features
Figure 1–1 AlphaPC 164 Functional Block Diagram
21164 Alpha
Microprocessor
Index
DECchip 21172-BA
Data Switch
(X4)
DECchip 21172-CA
Control, I/O Interface,
19
DECchip 21172 Core
Logic Chipset
PCI-to-ISA
Bridge
Control
64
Bcache
Support
- Oscillator
- Serial ROM
128/256-Bit Data
DRAM
SIMM
Sockets
Address/Control
(X8)
Data
Flash ROM
Time-of-Year Clock
Keyboard/Mouse
2 Dedicated 64-Bit PCI Slots
2 Dedicated 32-Bit PCI Slots
2 Dedicated ISA Slots
Combination
Controller
IDE
Diskette
Parallel Port
2 Serial Ports
PC164-01
Control
Data
Check
Address
Commands
Bcache Tag
10
128
16
37
and Address
1MB L3
PCI Bus
Controller
4 Devices