User`s guide

1.1 System Components and Features
Figure 1–1 EB164 Functional Block Diagram
21164 Alpha
Microprocessor
Index
21171−BA
Data Switch
(X4)
21171−CA
Control, I/O Interface,
19
Digital Semiconductor
21171 Core Logic Chipset
PCI−to−ISA
Bridge
Control
64
Bcache
SIMM
Sockets (X2)
Support
− Oscillator
− Serial ROM
256
DRAM
SIMM
Sockets
Address/Control
(X8)
Data
Data
Flash ROM
Time−of−Year
Keyboard/Mouse
3 Dedicated PCI Slots
2 Dedicated ISA Slots
1 Shared PCI/ISA Slot
Combination
Controller
2 IDE Devices
Diskette
Parallel Port
2 Serial Ports
MK−2306−01A
Control
Data
Check
Address
Commands
Bcache Tag
10
128
16
37
and Address
Digital Semiconductor
Digital Semiconductor
Digital Semiconductor
1–2 Introduction to the EB164