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Figure 1-1
UP2000 Functional Block Diagram
PCI - Bus 1
Dchip
(4)
Cchip
P Chip
(2)
Main
Memory
SDRAM
8 DIMMs
PCI/ISA Bridge
(CY82C693UB)
Super I/O
(SMC669)
Flash
ROM
Config
IRQ
ISA Bus
6 PCI Slots
* 1 memory bus: 256-bit
Sysdata
capbus
Memdata*
TigBus
Motherboard
21272
PCI - Bus 0
Cmd/addr
21264
L2 Cache
2/4/8 MB
(1 or 2)
Alpha Slot B
Module
1 ISA Slot
padbus
USB
Mouse
Keyboard
Parallel Port
Serial Ports
Floppy Diskette
I
2
C
IDE
AIC
7891
AIC
3860
Ultra2
LVD
SCSI
SE
Ultra
Wide
SCSI