2.
Programming Model
Rev.1.00 Jan. 10, 2008 Page 39 of 1658
REJ09B0261-0100
2.3
Memory-Mapped Registers
Some control registers are mapped to the following memory areas. Each of the mapped registers
has two addresses.
H'1C00 0000 to H'1FFF FFFF
H'FC00 0000 to H'FFFF FFFF
These two areas are used as follows.
•
H'1C00 0000 to H'1FFF FFFF
This area must be accessed using the address translation function of the MMU.
Setting the page number of this area to the corresponding field of the TLB enables access to a
memory-mapped register.
The operation of an access to this area without using the address translation function of the
MMU is not guaranteed.
•
H'FC00 0000 to H'FFFF FFFF
Access to area H'FC00 0000 to H'FFFF FFFF in user mode will cause an address error.
Memory-mapped registers can be referenced in user mode by means of access that involves
address translation.
Note: Do not access addresses to which registers are not mapped in either area. The operation of
an access to an address with no register mapped is undefined. Also, memory-mapped
registers must be accessed using a fixed data size. The operation of an access using an
invalid data size is undefined.
Summary of Contents for SH7781
Page 4: ...Rev 1 00 Jan 10 2008 Page iv of xxx REJ09B0261 0100 ...
Page 74: ...2 Programming Model Rev 1 00 Jan 10 2008 Page 44 of 1658 REJ09B0261 0100 ...
Page 272: ...8 Caches Rev 1 00 Jan 10 2008 Page 242 of 1658 REJ09B0261 0100 ...
Page 376: ...10 Interrupt Controller INTC Rev 1 00 Jan 10 2008 Page 346 of 1658 REJ09B0261 0100 ...
Page 694: ...13 PCI Controller PCIC Rev 1 00 Jan 10 2008 Page 664 of 1658 REJ09B0261 0100 ...
Page 762: ...14 Direct Memory Access Controller DMAC Rev 1 00 Jan 10 2008 Page 732 of 1658 REJ09B0261 0100 ...
Page 788: ...15 Clock Pulse Generator CPG Rev 1 00 Jan 10 2008 Page 758 of 1658 REJ09B0261 0100 ...
Page 828: ...17 Power Down Mode Rev 1 00 Jan 10 2008 Page 798 of 1658 REJ09B0261 0100 ...
Page 846: ...18 Timer Unit TMU Rev 1 00 Jan 10 2008 Page 816 of 1658 REJ09B0261 0100 ...
Page 1292: ...24 Multimedia Card Interface MMCIF Rev 1 00 Jan 10 2008 Page 1262 of 1658 REJ09B0261 0100 ...
Page 1326: ...25 Audio Codec Interface HAC Rev 1 00 Jan 10 2008 Page 1296 of 1658 REJ09B0261 0100 ...
Page 1482: ...28 General Purpose I O Ports GPIO Rev 1 00 Jan 10 2008 Page 1452 of 1658 REJ09B0261 0100 ...
Page 1538: ...30 User Debugging Interface H UDI Rev 1 00 Jan 10 2008 Page 1508 of 1658 REJ09B0261 0100 ...
Page 1688: ...Appendix Rev 1 00 Jan 10 2008 Page 1658 of 1658 REJ09B0261 0100 ...
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Page 1692: ...SH7785 Hardware Manual ...