TC1796
System Units (Vol. 1 of 2)
CPU Subsystem
User’s Manual 2-4 V2.0, 2007-07
CPU, V2.0
2.2.2 Instruction Fetch Unit
The Instruction Fetch Unit pre-fetches and aligns incoming instructions from the 64-bit
wide Program Memory Interface (PMI). The Issue Unit directs the instruction to the
appropriate pipeline. The Instruction Protection Unit checks the validity of accesses to
the PMI and also checks for instruction breakpoint conditions. The PC Unit is responsible
for updating the program counters.
Figure 2-3 Instruction Fetch Unit
MCA05587
Issue Unit
To Load/Store
Pipeline
Injection
PC Unit Align
Prefetch
Instruction
Protection
To Loop
Pipeline
To Integer
Pipeline
64
Program Memory Interface
Debug
To Next Page
Loading...
Need help?
General