Renesas SH7781 - Manual (Page 649)

13. PCI Controller (PCIC)
Rev.1.00 Jan. 10, 2008 Page 619 of 1658
REJ09B0261-0100
(19) PCI Memory Bank Mask Register 1 (PCIMBMR1)
This register is the mask register for PCIMBR1. This register specifies the memory space size on
the PCI bus for a memory read or write to the PCI memory space 1 by the CPU or DMAC.
See section 13.4.3 (2), Accessing PCI Memory Space.
SH R/W:
PCI R/W:
SH R/W:
PCI R/W:
16 17 18 19 20 21 22 23 24 25 26 27 28 29 31 30 Bit:
Initial value:
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
— — — — — — — — — — — —
R R R/W R/W
— — — —
— —
— — — — — — — — — — — —
R/W R/W R/W R/W R/W R/W R R R R R R
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
MSBAM1 — — — — — —
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 26
⎯
All 0 SH: R
PCI:
⎯
Reserved
These bits are always read as 0. The write value
should always be 0.
25 to 18 MSBAM1 All 0 SH: R/W
PCI:
⎯
PCI Memory Space 1 Bank Address Mask (8 bits)
00 0000 00: 256 kbytes
00 0000 01: 512 kbytes
00 0000 11: 1 Mbyte
00 0001 11: 2 Mbytes
00 0011 11: 4 Mbytes
00 0111 11: 8 Mbytes
00 1111 11: 16 Mbytes
01 1111 11: 32 Mbytes
11 1111 11: 64 Mbytes
Other than above: Setting prohibited
17 to 0
⎯
All 0 SH: R
PCI:
⎯
Reserved
These bits are always read as 0. The write value
should always be 0.