SH7785 Datasheet, PDF (623/1692 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

13. PCI Controller (PCIC)
(2) PCI Local Space Register 0 (PCILSR0)
See section 13.4.4 (1), Accessing Memory Space in This LSI.
Bit: 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
———
LSR
————
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SH R/W: R R R R/W R/W R/W R/W R/W R/W R/W R/W R/W R R R R
PCI R/W: R R R R R R R R R R R R R R R R
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MBA
RE
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SH R/W: R R R R R R R R R R R R R R R R/W
PCI R/W: R R R R R R R R R R R R R R R R
Bit
Bit Name
31 to 29 ⎯
Initial
Value
All 0
R/W
SH: R
PCI: R
28 to 20 LSR
0 0000 SH: R/W
0000 _{PCI: R}
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Size of Local Address Spaces 0 (9 bits)
These bits specify the size of the local address space
0 (address space for this LSI internal bus) in byte
units.
(Specified size (Mbytes) − 1) should be set to these
bits. When all bits are set to 0, 1-Mbyte space is
secured (initial value).
B'0 0000 0000: 1 Mbyte
B'0 0000 0001: 2 Mbytes
B'0 0000 0011: 4 Mbytes
B'0 0000 0111: 8 Mbytes
B'0 0000 1111: 16 Mbytes
B'0 0001 1111: 32 Mbytes
B'0 0011 1111: 64 Mbytes
B'0 0111 1111: 128 Mbytes
B'0 1111 1111: 256 Mbytes
B'1 1111 1111: 512 Mbytes
Other than above: Setting prohibited
Rev.1.00 Jan. 10, 2008 Page 593 of 1658
REJ09B0261-0100