r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 665

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

For PCI memory space 2 accesses, the middle eleven bits ([28:18]) are controlled by PCIMBMR2.
• PCIMBMR2 [28:18] B'1 1111 1111 11: PCI address [28:18] = SuperHyway bus address [28:18]
• PCIMBMR2 [28:18] B'0 0000 0000 00: PCI address [28:18] = PCIMBR2 [28:18]
The upper three bits ([31:29]) of a SuperHyway bus address are replaced with bits 31 to 29 in
PCIMBR2.
PCIMBMR2
SHwy bus address
Figure 13.5 Access from SuperHyway Bus to PCI Memory (PCI Bus)
31 29
31 29
28
28
(PCI Memory Space 2)
18 17
18 17
0
0
PCI address
mask
PCIMBR2
Rev.1.00 Jan. 10, 2008 Page 635 of 1658
31 29
31 29
28
28
13. PCI Controller (PCIC)
18 17
18 17
REJ09B0261-0100
0
0