8.
Caches
Rev.1.00 Jan. 10, 2008 Page 217 of 1658
REJ09B0261-0100
Bit Bit
Name
Initial
Value R/W
Description
10, 9
⎯
All
0
R
Reserved
For details on reading from or writing to these bits, see
description in General Precautions on Handling of
Product.
8
ICE
0
R/W
IC Enable Bit
Selects whether the IC is used. Note however when
address translation is performed, the IC cannot be used
unless the C bit in the page management information is
also 1.
0: IC not used
1: IC used
7 to 4
⎯
All
0
R
Reserved
For details on reading from or writing to these bits, see
description in General Precautions on Handling of
Product.
3
OCI
0
R/W
OC Invalidation Bit
When 1 is written to this bit, the V and U bits of all OC
entries are cleared to 0. This bit is always read as 0.
2 CB 0 R/W
Copy-Back
Bit
Indicates the P1 area cache write mode.
0: Write-through mode
1: Copy-back mode
1 WT 0 R/W
Write-Through
Mode
Indicates the P0, U0, and P3 area cache write mode.
When address translation is performed, the value of the
WT bit in the page management information has
priority.
0: Copy-back mode
1: Write-through mode
0
OCE
0
R/W
OC Enable Bit
Selects whether the OC is used. Note however when
address translation is performed, the OC cannot be
used unless the C bit in the page management
information is also 1.
0: OC not used
1: OC used
Содержание SH7781
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Страница 74: ...2 Programming Model Rev 1 00 Jan 10 2008 Page 44 of 1658 REJ09B0261 0100 ...
Страница 272: ...8 Caches Rev 1 00 Jan 10 2008 Page 242 of 1658 REJ09B0261 0100 ...
Страница 376: ...10 Interrupt Controller INTC Rev 1 00 Jan 10 2008 Page 346 of 1658 REJ09B0261 0100 ...
Страница 694: ...13 PCI Controller PCIC Rev 1 00 Jan 10 2008 Page 664 of 1658 REJ09B0261 0100 ...
Страница 762: ...14 Direct Memory Access Controller DMAC Rev 1 00 Jan 10 2008 Page 732 of 1658 REJ09B0261 0100 ...
Страница 788: ...15 Clock Pulse Generator CPG Rev 1 00 Jan 10 2008 Page 758 of 1658 REJ09B0261 0100 ...
Страница 828: ...17 Power Down Mode Rev 1 00 Jan 10 2008 Page 798 of 1658 REJ09B0261 0100 ...
Страница 846: ...18 Timer Unit TMU Rev 1 00 Jan 10 2008 Page 816 of 1658 REJ09B0261 0100 ...
Страница 1292: ...24 Multimedia Card Interface MMCIF Rev 1 00 Jan 10 2008 Page 1262 of 1658 REJ09B0261 0100 ...
Страница 1326: ...25 Audio Codec Interface HAC Rev 1 00 Jan 10 2008 Page 1296 of 1658 REJ09B0261 0100 ...
Страница 1482: ...28 General Purpose I O Ports GPIO Rev 1 00 Jan 10 2008 Page 1452 of 1658 REJ09B0261 0100 ...
Страница 1538: ...30 User Debugging Interface H UDI Rev 1 00 Jan 10 2008 Page 1508 of 1658 REJ09B0261 0100 ...
Страница 1688: ...Appendix Rev 1 00 Jan 10 2008 Page 1658 of 1658 REJ09B0261 0100 ...
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Страница 1692: ...SH7785 Hardware Manual ...