
162
Idle cycle
Idle cycle
Idle cycle
CK
Internal
address
Address
RAS
CASxx
Data
ROW
COLUMN
Miss-hit
RAS assert extension
Figure 9.7 Cache Fill Timing in Case of Non-Consecutive Cache Miss from DRAM Space
(Normal Mode, TPC = 0, RCD = 0, No Wait)
Miss-hit
ROW
COLUMN
CS space
Wait
COLUMN
RAS assert extension
CK
Internal
address
Address
RAS
CASxx
Data
DRAM access
CS space
access
DRAM access
Miss-hit
Figure 9.8 Cache Fill Timing in Case of Consecutive Cache Misses from DRAM Space
(RAS Down Mode, TPC = 0, RCD = 0, No Wait)
9.4.4
Cache Hit after Cache Miss
The first cache hit after a cache miss is regarded as a cache miss, and a cache fill without idle
cycle generation is performed. The next hit operates as a cache hit.
Summary of Contents for SH7041 Series
Page 2: ......
Page 6: ......
Page 38: ...xvi ...
Page 44: ...6 ...
Page 46: ...8 ...
Page 48: ...10 ...
Page 82: ...44 ...
Page 114: ...76 ...
Page 118: ...80 ...
Page 124: ...86 ...
Page 170: ...132 ...
Page 250: ...212 ...
Page 492: ...454 ...
Page 506: ...468 ...
Page 604: ...566 ...
Page 684: ...646 ...
Page 706: ...668 ...
Page 778: ...740 ...
Page 780: ...742 ...
Page 818: ...780 ...
Page 850: ...812 ...
Page 923: ...SH7040 SH7041 SH7042 SH7043 SH7044 SH7045 Group Hardware Manual REJ09B0044 0600O ...