Sun Microsystems UltraSPARC-I - Pipeline Stages

Sun Microelectronics
12
UltraSPARC User’s Manual
2.2 Pipeline Stages
This section describes each pipeline stage in detail. Figure 2-2 illustrates the pipe-
line stages.
Figure 2-2 UltraSPARC Pipeline Stages (Detail)
X
1
IU Register File
EC
N
1
N
2
G
D-Cache
TLB
FP add
FP RF 32 x 64
IST_data
Icc
FPST_data
Instruction Buffers
Annex
F/D
FPU
IEU
PDU
G ALU
FP mul
G mul
GRU
address bus
data bus
instruction bus
LSU
Tag
Tag Check
Hit
align
VA
PA
N
3
W
(Results in Annex)
ECU
LDQ/STQ
D-Cache
Data
R
X
2
X
3
SB
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