r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 286
r5s77631ay266bgv
Manufacturer Part Number
r5s77631ay266bgv
Description
Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5S77631AY266BGV.pdf
(2026 pages)
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Section 8 L Memory
8.2.1
RAMCR controls the protective functions in the L memory.
Rev. 1.00 Oct. 01, 2007 Page 220 of 1956
REJ09B0256-0100
Bit
31to10
9
8
7
6
Initial value :
Initial value :
R/W:
R/W:
Bit :
Bit :
On-Chip Memory Control Register (RAMCR)
Bit Name
—
RMD
RP
IC2W
OC2W
31
15
R
R
0
0
30
14
R
R
0
0
29
13
R
R
0
0
Initial
Value
All 0
0
0
0
0
28
12
R
R
0
0
27
11
R
R
0
0
R/W
R
R/W
R/W
R/W
R/W
26
10
R
R
0
0
Description
Reserved
For read/write in these bits, refer to General
Precautions on Handling of Product.
On-Chip Memory Access Mode
Specifies the right of access to the L memory from the
virtual address space.
0: An access in privileged mode is allowed.
1: An access user/privileged mode is allowed.
On-Chip Memory Protection Enable
Selects whether or not to use the protective functions
using ITLB and UTLB for accessing the L memory from
the virtual address space.
0: Protective functions are not used.
1: Protective functions are used.
For further details, refer to section 8.4, L Memory
Protective Functions.
IC Two-Way Mode
For further details, refer to section 7.4.3, IC Two-Way
Mode.
OC Two-Way Mode
For further details, refer to section 7.3.6, OC Two-Way
Mode.
RMD
R/W
25
(An address error exception occurs in user mode.)
R
0
9
0
R/W
RP
24
R
0
8
0
IC2W OC2W
R/W
23
R
0
7
0
R/W
22
R
0
6
0
21
R
R
0
5
0
20
R
R
0
4
0
19
R
R
0
3
0
18
R
R
0
2
0
17
R
R
0
1
0
16
R
R
0
0
0
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