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Release 1.0, 1 July 2002 F. Chapter 1 Overview 5
FIGURE 1-1
SPARC64 V Major Units
Extended UPA Bus
UPA interface logic
MoveIn buffer
MoveOut buffer
SX-Unit
U2$ U2$ data
S-Unit interface
tag 2M 4-way
ALUs
FLA
EXA
EXB
FLB
EAGA
EAGB
ALU
Output
Input
Registers
Registers
SX order queue Store queue
SX interface
D-TLB tag data
2048
+ 32
entry
Level-1 D cache
128 KB, 2-way
S-Unit
and
Instruction Instruction
Commit stack entry
Reservation stations
Branch
history
PC
nPC
CCR
FSR
I-Unit
GUB FUB
GPR FPR
E-unit
control
logic
pipeline
fetch buffer
E-Unit
I-TLB tag data
2048
+ 32
entry
Level-1 I cache
128 KB, 2-way