r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 96

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

4. Pipelining
Figure 4.2 shows the instruction execution patterns. Representations in figure 4.2 and their
descriptions are listed in table 4.1.
Table 4.1
Rev.1.00 Jan. 10, 2008 Page 66 of 1658
REJ09B0261-0100
Representation
E1/S1
E1S1
FE1 FE2 FE3 FE4 FE5 FE6
FS1 FS2 FS3 FS4 FS
M2
E1
S1
s1
ID
,
M3
E2
S2
s2
E1s1
MS
E3
S3
s3
Representations of Instruction Execution Patterns
WB
WB
WB
FS
Description
CPU EX pipe is occupied
CPU LS pipe is occupied (with memory access)
CPU LS pipe is occupied (without memory access)
Either CPU EX pipe or CPU LS pipe is occupied
Both CPU EX pipe and CPU LS pipe are occupied
CPU MULT operation unit is occupied
FPU-EX pipe is occupied
FPU-LS pipe is occupied
ID stage is locked
Both CPU and FPU pipes are occupied