HD6417705F133V Datasheet, PDF (121/741 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

3.2.2 Page Table Entry Register Low (PTEL)
The page table entry register low (PTEL) register residing at address H'FFFFFFF4, and used to
store the physical page number and page management information to be recorded in the TLB by
the LDTLB instruction. The contents of this register are only modified in response to a software
command.
Bit
31 to 29
Bit
Name

28 to 10
9
8
7
6, 5
4
3
2
1
0
PPN

V

PR
SZ
C
D
SH

Initial
Value
0

0

0





0
R/W
R
R/W
R
R/W
R
R/W
R/W
R/W
R/W
R/W
R
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Number of Physical Page
Page Management Information
For more details, see section 3.3, TLB Functions
3.2.3 Translation Table Base Register (TTB)
The translation table base register (TTB) residing at address H'FFFFFFF8, which points to the
base address of the current page table. The hardware does not set any value in TTB automatically.
TTB is available to software for general purposes. The initial value is undefined.
3.2.4 MMU Control Register (MMUCR)
The MMU control register (MMUCR) residing at address H'FFFFFFE0, which makes the MMU
settings described in figure 3.3. Any program that modifies MMUCR should reside in the P1 or P2
area.
Rev. 2.00, 09/03, page 73 of 690