Renesas SH7781 - Manual (Page 623)

13. PCI Controller (PCIC)
Rev.1.00 Jan. 10, 2008 Page 593 of 1658
REJ09B0261-0100
(2) PCI Local Space Register 0 (PCILSR0)
See section 13.4.4 (1), Accessing Memory Space in This LSI.
SH R/W:
PCI R/W:
R 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 R R R R R R R R R R R R R R R
SH R/W:
PCI R/W:
16 17 18 19 20 21 22 23 24 25 26 27 28 29 31 30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
— — — — LSR — — —
Bit:
Initial value:
R/W R R R R R R R R R R R R R R R
R R R R R R R R R R R R R R R R
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
MBA
RE
— — — — — — — — — — — — — — —
0 1 2 3 4 5 6 7 8 9 10 11 12 13 15 14 Bit:
Initial value:
Bit Bit Name
Initial
Value R/W
Description
31 to 29
⎯
All 0 SH: R
PCI: R
Reserved
These bits are always read as 0. The write value
should always be 0.
28 to 20 LSR 0 0000
0000 SH: R/W
PCI: R
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