r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 394

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

11. Local Bus State Controller (LBSC)
11.4.1
MMSELR is a 32-bit register that selects memory address maps for areas 2 to 5. This register
should be accessed at the address H'FC40 0020 in longword. To prevent incorrect writing, writing
is accepted only when the upper 16-bit data is H'A5A5. The upper 29 bits are always read as 0.
This register is initialized to H'0000 0000 by a power-on reset or a manual reset.
Rev.1.00 Jan. 10, 2008 Page 364 of 1658
REJ09B0261-0100
Initial value:
Initial value:
Bit
31 to 16 (Code for
15 to 3
R/W:
R/W:
BIt:
BIt:
Memory Address Map Select Register (MMSELR)
Bit Name
writing)
⎯
R/W
31
15
⎯
R
0
0
R/W
30
14
⎯
R
0
0
R/W
29
13
⎯
R
0
0
Initial
Value
All 0
All 0
R/W
28
12
⎯
R
0
0
R/W
R/W
R/W
R
27
11
⎯
R
0
0
R/W
26
10
⎯
R
0
0
Code for writing (H'A5A5)
Description
Code for writing
Set these bits to H'A5A5 (write H'A5A5 to these bits)
when writing to AREASEL (bits 2 to 0) in this register.
These bits are always read as 0.
Reserved
These bits are always read as 0. The write value should
always be 0.
R/W
25
⎯
R
0
9
0
R/W
24
⎯
R
0
8
0
R/W
23
⎯
R
0
7
0
R/W
22
⎯
R
0
6
0
R/W
21
⎯
R
0
5
0
R/W
20
⎯
R
0
4
0
R/W
19
⎯
R
0
3
0
R/W
R/W
18
0
2
0
AREASEL
R/W
R/W
17
0
1
0
R/W
R/W
16
0
0
0