1.5 System Description: 800/900 Models
Figure 5 is a functional block diagram of the DEC 3000 AXP 800/900 models.
Figure 5 DEC 3000 AXP 800/900 Models: Functional Block Diagram
Flash EEPROM
256 KB
System Card Module
I/O Module
Non−Volatile
Time of Year
Serial Lines
Comm/Printer
ISDN
Audio In/Out
Ethernet
Boot ROM
CPU
CACHE
Scatter/
Gather
Map
ADDR
ASIC
Memory
ASICs (4)
DATA
Interface ASIC
TURBOchannel
156
312
19
15
28
39
33
TC
Option
Slots
TC
Option
Slots
SFB
ASIC
TCDS
ASIC
IOCTL
ASIC
33
MR−0135−93RAGS
SCSI
SCSI
Numbers along communication lines indicate their bus width.
1–16 Introduction to the DEC 3000 Models 300/400/500/600/700/800/900 AXP
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