參數(shù)資料
型號(hào): μPD30102
廠商: NEC Corp.
英文描述: 64-/32-BIT Microprocessor(64/32位微處理器)
中文描述: 64-/32-BIT微處理器(64/32位微處理器)
文件頁(yè)數(shù): 24/112頁(yè)
文件大小: 639K
代理商: ΜPD30102
μ
PD30102
24
Preliminary Data Sheet
3. INTERNAL ARCHITECTURE
3.1 Pipeline
Each instruction is executed in the following five steps:
(1) IF
(2) RF
(3) EX
(4) DC
(5) WB
Instruction fetch
Register fetch
Execution
Data cache fetch
Write back
The V
R
4102 has a five-stage pipeline. It takes five clocks to execute each instruction, but instructions can be executed
in parallel. The pipeline clock, PClock, is determined by the setting of the CLKSEL (0:2) pins.
The following figure outlines the pipeline.
Figure 3-1. Pipeline of V
R
4102 (5-stage)
PClock (internal)
IF
RF
EX
DC
WB
IF
RF
EX
DC
WB
IF
RF
EX
DC
WB
IF
RF
EX
DC
WB
IF
RF
EX
DC
WB
Current
CPU
cycle
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