Figure 1 DEC 3000 AXP 300 Models: Functional Block Diagram
Clock
21064
Serial ROM
Cache
(256KB)
Data 64 Address 28
Buffer
Memory SIMMs
16-256MB
Memory, CPU
TURBOchannel
Control Logic
2 TURBOchannel
Option Slots
SCSI
TCDS
N/C
TURBOchannel 32
Graphics:
-SFB
-2MB VRAMS
-RAMDAC
-etc
Buffer
Data 64
Buffer Buffer
I/O Subsystem:
-Core I/O ASIC
-Ethernet
-ISDN
-Serial
-ROMs
-Audio
-LEDs
Buffer
MLO-012116
(Except 300L)
Introduction to the DEC 3000 Models 300/400/500/600/700/800/900 AXP 1–3
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