Section 4 Pipelining
Rev.1.00 Dec. 13, 2005 Page 75 of 1286
REJ09B0158-0100
(1-1) BF, BF/S, BT, BT/S, BRA, BSR:
1 issue cycle + 0 to 2 branch cycles
I1
I2
(I1)
(ID)
ID
E1/S1
E2/s2
E3/s3
WB
(I2)
(1-2) JSR, JMP, BRAF, BSRF:
1 issue cycle + 3 branch cycles
I1
I2
ID
E1/S1
E2/S2
E3/S3
WB
(Branch destination instruction)
(1-3) RTS:
1 issue cycle + 0 to 3 branch cycles
I1
I2
ID
E1/S1
E2/S2
E3/S3
WB
(1-4) RTE:
4 issue 1 branch cycles
(1-5) TRAPA: 8
issue 5 1 branch cycle
It is not constant cycles to
the clock halted period.
(1-6) SLEEP: 2
issue cycles
(I1)
(ID)
(I2)
(Branch destination instruction)
(Branch destination instruction)
(I1)
(ID)
(I2)
(Branch destination instruction)
Note:
Note:
I1
I2
ID
s1
s2
s3
WB
E2s2
ID
E3s3
ID
WB
ID
(I1)
(ID)
(I2)
E1s1
I1
I2
ID
S1
S2
S3
WB
E1s1
E3s3
E2s2
E1s1
E1s1
E1s1
E1s1
E2s2
E2s2
E2s2
E2s2
E3s3
E3s3
E3s3
E3s3
WB
WB
WB
WB
E2s2 E3s3 WB
E2s2 E3s3 WB
E1s1
E1s1
(I1)
(ID)
(I2)
ID
ID
ID
ID
ID
ID
ID
WB
I1
I2
ID
S1
S2
S3
WB
E1s1
E2s2
E3s3
WB
ID
Note:
Note: The number of branch cycles may be
0 by prefetching instruction.
In branch instructions that are categorized
as (1-1), the number of branch cycles may
be reduced by prefetching.
It is 14 cycles to the ID stage in the first
instruction of exception handler.
Figure 4.2 Instruction Execution Patterns (1)
Summary of Contents for SH7780 Series
Page 2: ...Rev 1 00 Dec 13 2005 Page ii of l ...
Page 28: ...Rev 1 00 Dec 13 2005 Page xxviii of l ...
Page 50: ...Rev 1 00 Dec 13 2005 Page l of l ...
Page 82: ...Section 1 Overview Rev 1 00 Dec 13 2005 Page 32 of 1286 REJ09B0158 0100 ...
Page 122: ...Section 3 Instruction Set Rev 1 00 Dec 13 2005 Page 72 of 1286 REJ09B0158 0100 ...
Page 146: ...Section 4 Pipelining Rev 1 00 Dec 13 2005 Page 96 of 1286 REJ09B0158 0100 ...
Page 196: ...Section 6 Floating Point Unit FPU Rev 1 00 Dec 13 2005 Page 146 of 1286 REJ09B0158 0100 ...
Page 292: ...Section 9 L Memory Rev 1 00 Dec 13 2005 Page 242 of 1286 REJ09B0158 0100 ...
Page 492: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Dec 13 2005 Page 442 of 1286 REJ09B0158 0100 ...
Page 674: ...Section 15 Clock Pulse Generator CPG Rev 1 00 Dec 13 2005 Page 624 of 1286 REJ09B0158 0100 ...
Page 692: ...Section 16 Watchdog Timer and Reset Rev 1 00 Dec 13 2005 Page 642 of 1286 REJ09B0158 0100 ...
Page 726: ...Section 18 Timer Unit TMU Rev 1 00 Dec 13 2005 Page 676 of 1286 REJ09B0158 0100 ...
Page 1032: ...Section 25 Audio Codec Interface HAC Rev 1 00 Dec 13 2005 Page 982 of 1286 REJ09B0158 0100 ...
Page 1150: ...Section 28 General Purpose I O GPIO Rev 1 00 Dec 13 2005 Page 1100 of 1286 REJ09B0158 0100 ...
Page 1184: ...Section 29 User Break Controller UBC Rev 1 00 Dec 13 2005 Page 1134 of 1286 REJ09B0158 0100 ...
Page 1266: ...Section 31 Electrical Characteristics Rev 1 00 Dec 13 2005 Page 1216 of 1286 REJ09B0158 0100 ...
Page 1328: ...Appendix Rev 1 00 Dec 13 2005 Page 1278 of 1286 REJ09B0158 0100 ...
Page 1336: ...Rev 1 00 Dec 13 2005 Page 1286 of 1286 REJ09B0158 0100 ...
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Page 1340: ...SH7780 Hardware Manual ...